CN102510095B - Combined cycle and straight condensing thermal power combined dispatching system and method - Google Patents

Abstract

The invention provides a combined dispatching system and method of combined cycle and pure condensing steam thermal power, including gas heating boiler and gas combined cycle, pure condensing thermal power unit, air conditioner heat pump, electric energy meter, radiator, heat consumption meter and collection The second remote centralized controller of the electricity consumption data detected by the electric energy meter and the heating heat consumption data detected by the heat consumption meter controls the gas heating boiler, the gas combined cycle, and the pure condensate through the first to third remote centralized controllers. Dispatching and control devices for the operation of steam-type thermal power units, air conditioner heat pumps and radiators. The present invention collects the pipeline distance from the user to the heat source, and uses the pipeline distance to rationally schedule the condensing thermal power unit, the gas heating boiler and the gas combined cycle that originally operated independently, effectively reducing the gas heating boiler and the gas combined cycle. The total energy consumption of condensing gas thermal power units avoids wasting fuel resources, and at the same time makes scheduling more timely and accurate.

Description

A joint dispatching system and method of combined cycle and pure condensing steam thermal power

technical field

The invention relates to an urban comprehensive energy supply system, in particular to a method for realizing optimal control of a power system by scheduling heating loads.

Background technique

The existing power grid includes two power generation modes: one is to provide electric energy solely from the power generated by the combined heat and power unit, and the other is to provide electric energy solely from the power generated by the condensing thermal power unit. These two generator sets operate independently. Among them, the combined heat and power unit supplies electric energy to end users and provides heating energy at the same time. The condensing steam thermal power unit can only provide electric energy to end users, and heat energy needs to be supplied by another thermal energy plant.

The physical state of gas heating boiler and gas combined cycle operation is to reduce heat generation and only increase power generation. For a certain total load of the power grid, under the condition of meeting a certain heating load, what is the output of the gas heating boiler and the gas combined cycle to save energy?

The Chinese invention patent with the notification number CN1259834C discloses a dual-source heating and air-conditioning system and a heating/cooling method using the system. This patent solves the problem of fully utilizing the electric energy and heating heat energy produced by combined heat and power generation.

The Chinese invention patent with the notification number CN100580327C discloses a cogeneration energy supply method and system. This patent divides residential heating users into air conditioner heat pump heating users and radiator heating users, and the combined heat and power unit provides electric energy and heating heat energy to the above heating users separately for their winter heating needs, so as to improve energy utilization.

It can be seen that the above two patents only solve the problem of how to effectively utilize the electric energy and heat energy produced by the combined heat and power unit. However, the problem of how to control the heating and power generation output that the combined heat and power unit should undertake under the condition of cooperating with the pure condensing thermal power unit is not solved to save energy.

The heating hot water produced by the gas-fired heating boiler and the gas-fired combined cycle has a certain distance to reach the user due to the limitation of the transmission distance and the flow rate of the hot water, while the generated electricity can reach the user in an instant; in the prior art, there is no basis The distance between the gas heating boiler and the gas combined cycle and the heating user, the system and method for the joint scheduling control of the gas heating boiler, the gas combined cycle and the coal-fired pure condensing steam thermal power unit, making the scheduling more timely and accurate, Avoid wasting energy.

Contents of the invention

The purpose of the present invention is to establish a heat and power combined dispatching system and its dispatching method, so that the system can reasonably adjust the gas heating boiler, gas combined cycle and coal-fired pure condensing steam according to the distance between the gas heating boiler, the gas combined cycle and the heating user. Thermal power units are jointly dispatched to meet end-user heating heat supply and non-heating electricity consumption needs, and reduce total energy consumption to achieve energy conservation.

In order to achieve the above object, a combined cycle and pure condensing steam thermal power dispatching system of the present invention adopts the following technical scheme:

A joint dispatching system of combined cycle and pure condensing steam thermal power, including:

Gas heating boiler and gas combined cycle for generating electricity and heating hot water;

Coal-fired pure condensing steam thermal power units for generating electric energy;

An air conditioner heat pump connected in parallel with the gas heating boiler, gas combined cycle and coal-fired pure condensing thermal power unit through a power cable, and the air conditioner heat pump is composed of the gas heating boiler, gas combined cycle and coal-fired pure condensing The electric energy generated by the thermal power unit is driven to generate heating heat;

Air conditioner heat pump remote control switch for controlling the air conditioner heat pump;

The electric meter that collects the non-heating electricity of users;

The hot water heating radiator connected to the gas heating boiler and the gas combined cycle through the heating pipeline, the hot water produced by the gas heating boiler and the gas combined cycle flows into the hot water heating radiator to generate heating heat energy ;

The hot water consumption meter of the hot water heating radiator is used to detect the hot water consumption data of the hot water heating radiator;

Control the remote control switch of the water flow valve of the hot water heating radiator;

The first remote centralized controller collects the heating output hot water flow and power generation output of the gas heating boiler and the gas combined cycle; and transmits the collected heating output hot water flow and power generation output of the gas heating boiler and the gas combined cycle to the comprehensive Dispatch control device;

The second remote centralized controller, which records the pipeline distance information between the hot water heating radiator and the gas heating boiler and the gas combined cycle; the second remote centralized controller collects the hot water consumption meter detection of the hot water heating radiator Hot water consumption data, collect the user's non-heating electricity consumption, and then transmit the pipeline distance information, the user's non-heating electricity consumption, and hot water consumption data to the comprehensive dispatching control device;

The third remote centralized controller collects the power generation output of the coal-fired pure condensing steam thermal power unit; and transmits the collected power generation output of the coal-fired pure condensing steam thermal power unit to the comprehensive dispatching control device;

The comprehensive scheduling control device consists of the heating output and hot water flow of the gas heating boiler and the gas combined cycle, the power generation output of the gas heating boiler and the gas combined cycle, the power generation output of the coal-fired pure condensing steam thermal power unit, and the hot water type of the user. The pipeline distance information of the heating radiator, the user's non-heating electricity consumption data and the user's hot water consumption data generate a dispatch control signal;

The first remote centralized controller receives the dispatching control signal sent by the comprehensive dispatching control device, and uses the dispatching control signal to control the action of the gas heating boiler and the gas combined cycle control executive device of the gas heating boiler and the gas combined cycle;

The second remote centralized controller receives the scheduling control signal sent by the integrated scheduling control device, and uses the scheduling control signal to respectively drive the remote control switch of the heat pump of the air conditioner and the remote control switch of the flow valve of the hot water heating radiator to perform actions;

The third remote centralized controller receives the dispatching control signal sent by the comprehensive dispatching control device, and uses the dispatching control signal to control the action of the coal-fired pure condensing steam thermal power unit control actuator.

The comprehensive scheduling control device is used to: calculate the scheduling control signals of the heating output hot water flow and power generation output of the gas heating boiler and the gas combined cycle at each moment; calculate the coal-fired pure condensing steam thermal power unit at each moment The scheduling control signal of the power generation output of the power generation; the scheduling control signal of the heating power consumption of the air conditioner heat pump at the end user at each time is calculated; the heating consumption of the hot water heating radiator at the end user at each time is calculated Scheduling control signal of hot water quantity;

The remote control switch of the water flow valve of the hot water heating radiator is coupled with the comprehensive dispatching control device in a remote manner through the second remote centralized controller;

The heat pump remote control switch of the air conditioner is coupled with the comprehensive dispatching control device in a remote manner through the second remote centralized controller;

The gas-fired heating boiler and the gas-fired combined cycle control execution device are coupled with the comprehensive scheduling control device in a remote manner through the first remote centralized controller; the gas-fired heating boiler and the gas combined cycle control execution device control according to the obtained scheduling control signal The action of the valve connected to it.

The integrated dispatch control device includes:

Receive user non-heating power consumption data, user hot water consumption data, user pipeline distance information, heating output of gas heating boiler and gas combined cycle hot water flow, power generation output of gas heating boiler and gas combined cycle, and coal-fired pure condensate The first data receiving unit of the power generation output of the thermal power unit;

a data decoder unit that decodes all received data;

a data memory unit storing all decoded data;

a dispatch control signal calculation unit generating a dispatch control signal;

a signal encoder for encoding the dispatch control signal; and

The encoded scheduling control signal is transmitted to the sending units of the first remote centralized controller, the second remote centralized controller, and the third remote centralized controller.

The gas heating boiler and gas combined cycle control execution device includes a scheduling control signal transceiving code memory, a drive circuit and a mechanical gear control device. The scheduling control signal is decoded by the scheduling control signal transmitting and receiving coding memory to generate a gas heating boiler and a gas combined cycle Scheduling control instructions, the electric drag signal output by the drive circuit triggers the mechanical gear control device, and the mechanical gear control device then controls the valve action of the gas heating boiler and the gas combined cycle.

The control execution device of the coal-fired pure condensing steam thermal power unit includes a scheduling control signal transceiving code memory, a drive circuit and a mechanical gear control device. The thermal power unit scheduling control command, the electric drag signal output by the drive circuit triggers the mechanical gear control device, and the mechanical gear control device controls the action of the coal-fired feed valve and the power generation steam flow valve of the coal-fired pure condensing steam thermal power unit.

The integrated dispatching control device is connected to the cloud computing computing service system through the power optical fiber, and drives the computing of the cloud computing computing service system to obtain the dispatching control signal; the comprehensive dispatching control device receives the dispatching control signal calculated by the cloud computing computing service system through the power optical fiber, Then issue the scheduling control signal to the first remote centralized controller, the second remote centralized controller, and the third remote centralized controller via power cables or wireless transmission.

The second remote centralized controller includes a non-heating electric meter pulse counter, a heating hot water flow pulse counter, a pulse signal code converter, a measurement signal amplification transmitter, and a control signal receiving decoder and a control signal remote control transmitter connected to each other;

The non-heating meter pulse counter is connected to the user’s non-heating meter to detect the user’s non-heating power consumption data. The user’s non-heating power consumption data is processed by the pulse signal code converter and the metering signal amplifier transmitter and then sent to the comprehensive dispatching control device;

The heating hot water flow pulse counter is connected to the hot water consumption meter of the hot water heating radiator, which is used to detect the heating flow data of the hot water consumption meter of the hot water heating radiator, and the heating flow data detected by the heating hot water flow pulse counter After being processed by the pulse signal code converter and the metering signal amplifier transmitter, the pipeline distance information between the hot water heating radiator, the gas heating boiler and the gas combined cycle is transmitted to the comprehensive dispatching control device;

The control signal receiving decoder receives and decodes the scheduling control information sent by the integrated scheduling control device, and then sends the control signal to the remote control switch of the heat pump of the air conditioner and the remote control switch of the flow valve of the hot water heating radiator through the control signal remote transmitter to perform actions .

The second remote centralized controller is also used to collect thermal inertia time data input by the user, and transmit the data to the comprehensive scheduling control device.

A dispatching method for a joint dispatching system of combined cycle and pure condensing steam thermal power, comprising the following steps:

1), measurement:

1.1), measuring the supply side:

The first remote centralized controller collects the combined cycle electrical output P _COMB (t) of the gas heating boiler and the gas combined cycle, the thermal output H _COMB (t) of the combined cycle, and the thermal output H _BOIL of the heating boiler during the time period of 0 to T×ΔT (t); The sampling period is ΔT; T is the number of times collected, and T is a natural number;

The third remote centralized controller collects the power generation output power P _CON (t) of the coal-fired pure condensing steam thermal power unit during the period of 0～T×ΔT;

1.2), measure the user side: i=0～N, N is the number of users; each user has an air conditioner heat pump and a hot water heating radiator;

1.2.1), the second remote centralized controller collects the pipeline distance S _i of N users from the heat source gas heating boiler and the gas combined cycle;

1.2.2), the second remote centralized controller collects the non-heating power consumption P _i (t) of N users in the period of 0～T×ΔT, and the sampling frequency is ΔT;

1.2.3), the second remote centralized controller collects the heat consumption H _i (t) of the hot water heating radiators of N users in the period of 0～T×ΔT, and the sampling frequency is ΔT;

1.2.4), the second remote centralized controller collects the installed capacity of air conditioners and heat pumps of N users

1.2.5), the second remote centralized controller collects the thermal inertia time T _i input by N users;

2), calculation

2.1), the integrated dispatching control device calculates the total power consumption of all users in each period:

${\mathrm{<span\; class="notranslate">\; P</span>}}_{\mathrm{<span\; class="notranslate">\; sum</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; =</span>\underset{\mathrm{<span\; class="notranslate">\; i</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 1</span>}}{\overset{\mathrm{<span\; class="notranslate">\; N</span>}}{\mathrm{<span\; class="notranslate">\; \&Sigma;</span>}}}{\mathrm{<span\; class="notranslate">\; P</span>}}_{\mathrm{<span\; class="notranslate">\; i</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; ;</span>$

2.2), according to the total power consumption P _sum (t) of each period calculated in step 2.1), use the statistical analysis method to predict the power load P _load (t) for a period of time in the future; according to the gas heating collected in step 1) The thermal output H _COMB (t) of the combined cycle of the boiler and the gas-fired combined cycle and the thermal output H _BOIL (t) of the heating boiler, predict the thermal output H _COMB (t) of the combined cycle of the gas-fired heating boiler and the gas-fired combined cycle in the future ) and the thermal output H _BOIL (t) of the heating boiler;

将相同的s_i的用户分为同一组，s_i＝l，总计为L组，L为自然数；v为热水在管道中的流速；2.3), user grouping: calculate the equivalent distance from each user to the heat source Do the rounding operation, so that

Divide users with the same s _i into the same group, s _i =l, the total is L groups, L is a natural number; v is the flow rate of hot water in the pipeline;

2.4), for the L groups obtained in step 2.3), obtain the total heating load H _load (l) and heat pump capacity P _EHP (l) of all users in each group respectively;

H _load (l)=∑H _i (t, l); H _i (t, l) is the heating load of user i in the first group at time t;

为第1组用户i的热泵容量；

is the heat pump capacity of user i in the first group;

3), control calculation

3.1), objective function:

The total energy consumption f of the objective function is:

$\mathrm{<span\; class="notranslate">\; f</span>}<span\; class="notranslate">\; =</span>{\mathrm{<span\; class="notranslate">\; f</span>}}_{\mathrm{<span\; class="notranslate">\; COMB</span>}}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; f</span>}}_{\mathrm{<span\; class="notranslate">\; BOIL</span>}}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; f</span>}}_{\mathrm{<span\; class="notranslate">\; CON</span>}}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; f</span>}}_{\mathrm{<span\; class="notranslate">\; CON</span>}}^{\mathrm{<span\; class="notranslate">\; ramp</span>}}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; )</span>$

为纯凝汽火电机组爬坡能耗，单位为MWH；f _COMB is the power consumption of the combined cycle of the gas heating boiler and the gas combined cycle, the unit is MWH; f _BOIL is the power consumption of the gas heating boiler and the gas heating boiler of the gas combined cycle, the unit is MWH; f _CON is the pure condensate Power consumption of steam-thermal power unit, unit is MWH;

is the ramp-up energy consumption of the pure condensing steam thermal power unit, the unit is MWH;

in:

${\mathrm{<span\; class="notranslate">\; f</span>}}_{\mathrm{<span\; class="notranslate">\; COMB</span>}}<span\; class="notranslate">\; =</span>\underset{\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; =</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; T</span>}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; )</span>}{\overset{\mathrm{<span\; class="notranslate">\; 2</span>}\mathrm{<span\; class="notranslate">\; T</span>}}{\mathrm{<span\; class="notranslate">\; \&Sigma;</span>}}}\frac{{\mathrm{<span\; class="notranslate">\; h</span>}}_{\mathrm{<span\; class="notranslate">\; COMB</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span>}{{\mathrm{<span\; class="notranslate">\; \&eta;</span>}}_{\mathrm{<span\; class="notranslate">\; COMB</span>}}^{\mathrm{<span\; class="notranslate">\; q</span>}}}<span\; class="notranslate">\; \&Center\; Dot;</span>\mathrm{<span\; class="notranslate">\; \&Delta;T</span>}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 2</span>}<span\; class="notranslate">\; )</span>$

为燃气供暖锅炉与燃气联合循环的联合循环热效率；h_COMB(t)为调节后燃气供暖锅炉与燃气联合循环的联合循环热出力；

is the thermal efficiency of the combined cycle of the gas-fired heating boiler and the gas-fired combined cycle; h _COMB (t) is the combined cycle heat output of the adjusted gas-fired heating boiler and the gas-fired combined cycle;

${\mathrm{<span\; class="notranslate">\; f</span>}}_{\mathrm{<span\; class="notranslate">\; BOIL</span>}}<span\; class="notranslate">\; =</span>\underset{\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; =</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; T</span>}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; )</span>}{\overset{\mathrm{<span\; class="notranslate">\; 2</span>}\mathrm{<span\; class="notranslate">\; T</span>}}{\mathrm{<span\; class="notranslate">\; \&Sigma;</span>}}}\frac{{\mathrm{<span\; class="notranslate">\; h</span>}}_{\mathrm{<span\; class="notranslate">\; BOIL</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span>}{{\mathrm{<span\; class="notranslate">\; \&eta;</span>}}_{\mathrm{<span\; class="notranslate">\; BOIL</span>}}}<span\; class="notranslate">\; \&Center\; Dot;</span>\mathrm{<span\; class="notranslate">\; \&Delta;T</span>}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 3</span>}<span\; class="notranslate">\; )</span>$

η _BOIL is the thermal efficiency of the gas-fired heating boiler and the gas-fired combined cycle; h _BOIL (t) is the thermal output of the adjusted gas-fired heating boiler and the gas-fired combined cycle;

a), thermal power unit power consumption:

${\mathrm{<span\; class="notranslate">\; b</span>}}_{\mathrm{<span\; class="notranslate">\; CON</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; =</span>\frac{{\mathrm{<span\; class="notranslate">\; p</span>}}_{\mathrm{<span\; class="notranslate">\; CON</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span>}{\mathrm{<span\; class="notranslate">\; 0.003313105</span>}<span\; class="notranslate">\; \&Center\; Dot;</span>{\mathrm{<span\; class="notranslate">\; p</span>}}_{\mathrm{<span\; class="notranslate">\; CON</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; 0.082266676</span>}}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 4</span>}<span\; class="notranslate">\; )</span>$

${\mathrm{<span\; class="notranslate">\; f</span>}}_{\mathrm{<span\; class="notranslate">\; CON</span>}}<span\; class="notranslate">\; =</span>\underset{\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 0</span>}}{\overset{\mathrm{<span\; class="notranslate">\; T</span>}}{\mathrm{<span\; class="notranslate">\; \&Sigma;</span>}}}\mathrm{<span\; class="notranslate">\; 29.271</span>}<span\; class="notranslate">\; \&CenterDot;</span>{\mathrm{<span\; class="notranslate">\; p</span>}}_{\mathrm{<span\; class="notranslate">\; CON</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; \&Center\; Dot;</span>{\mathrm{<span\; class="notranslate">\; b</span>}}_{\mathrm{<span\; class="notranslate">\; CON</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; \&CenterDot;</span>\mathrm{<span\; class="notranslate">\; \&Delta;T</span>}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 5</span>}<span\; class="notranslate">\; )</span>$

b _CON (t) is the coal consumption of the regulated pure condensing steam thermal power unit in g/kWh; p _CON (t) is the power generation output of the regulated pure condensing steam thermal power unit in MW;

b), thermal power unit climbing energy consumption:

${\mathrm{<span\; class="notranslate">\; f</span>}}_{\mathrm{<span\; class="notranslate">\; CON</span>}}^{\mathrm{<span\; class="notranslate">\; ramp</span>}}<span\; class="notranslate">\; =</span>\underset{\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 1</span>}}{\overset{\mathrm{<span\; class="notranslate">\; T</span>}}{\mathrm{<span\; class="notranslate">\; \&Sigma;</span>}}}{\mathrm{<span\; class="notranslate">\; d</span>}}_{\mathrm{<span\; class="notranslate">\; CON</span>}}<span\; class="notranslate">\; \&Center\; Dot;</span><span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; p</span>}}_{\mathrm{<span\; class="notranslate">\; CON</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; -</span>{\mathrm{<span\; class="notranslate">\; p</span>}}_{\mathrm{<span\; class="notranslate">\; CON</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; )</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 6</span>}<span\; class="notranslate">\; )</span>$

d _CON is the climbing coal consumption coefficient of the thermal power unit (B);

3.2), constraint equation

3.2.1), power load balance

P _load (t)+p _EHPs (t)＝p _CON (t)+p _COMB (t)(7)

p _EHPs (t) is the sum of heating power consumption of all user heat pumps in t period after adjustment, in MW; p _COMB (t) is the combined cycle power output of gas heating boiler and gas combined cycle in t period after adjustment;

3.2.2), heat load balance equation

Δh(t)=|H _COMB (t)+H _BOIL (t)-h _COMB (t)+h _BOIL (t)| (8)

$\mathrm{<span\; class="notranslate">\; \&Delta;h</span>}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; =</span>\underset{\mathrm{<span\; class="notranslate">\; l</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 0</span>}}{\overset{\mathrm{<span\; class="notranslate">\; L</span>}}{\mathrm{<span\; class="notranslate">\; \&Sigma;</span>}}}{\mathrm{<span\; class="notranslate">\; h</span>}}_{\mathrm{<span\; class="notranslate">\; EHP</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; l</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; l</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; ,</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; T</span>}<span\; class="notranslate">\; \&le;</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; l</span>}<span\; class="notranslate">\; \&le;</span>\mathrm{<span\; class="notranslate">\; 2</span>}\mathrm{<span\; class="notranslate">\; T</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 9</span>}<span\; class="notranslate">\; )</span>$

Among them: _hEHP (t+l, l) is the sum of the heating power of user heat pumps in group l during t+l, in MW; _hEHP (t, l) is the sum of heating power of user heat pumps in group l during t and, the unit is MW; H _COMB (t) is the heat output of the gas-fired combined cycle of the gas-fired heating boiler and the gas-fired combined cycle predicted in step 2.2); H _BOIL (t) is the predicted gas-fired heating boiler and the gas-fired combined cycle h _COMB (t) is the heat output of the gas heating boiler and the gas combined cycle in the t period after adjustment; h _BOIL (t) is the combined gas heating boiler and gas combined cycle in the t period after adjustment Circulating gas heating boiler thermal output;

3.2.3), gas heating boiler and gas combined cycle constraints:

${\mathrm{<span\; class="notranslate">\; h</span>}}_{\mathrm{<span\; class="notranslate">\; COMB</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; =</span>{\mathrm{<span\; class="notranslate">\; f</span>}}_{\mathrm{<span\; class="notranslate">\; COMB</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; \&Center\; Dot;</span>{\mathrm{<span\; class="notranslate">\; \&eta;</span>}}_{\mathrm{<span\; class="notranslate">\; COMB</span>}}^{\mathrm{<span\; class="notranslate">\; q</span>}}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 10</span>}<span\; class="notranslate">\; )</span>$

${\mathrm{<span\; class="notranslate">\; p</span>}}_{\mathrm{<span\; class="notranslate">\; COMB</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; =</span>{\mathrm{<span\; class="notranslate">\; f</span>}}_{\mathrm{<span\; class="notranslate">\; COMB</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; \&Center\; Dot;</span>{\mathrm{<span\; class="notranslate">\; \&eta;</span>}}_{\mathrm{<span\; class="notranslate">\; COMB</span>}}^{\mathrm{<span\; class="notranslate">\; e</span>}}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 11</span>}<span\; class="notranslate">\; )</span>$

为燃气供暖锅炉与燃气联合循环的联合循环热效率；

为燃气供暖锅炉与燃气联合循环的联合循环发电效率；p_COMB(t)为调节后t时段燃气供暖锅炉与燃气联合循环的联合循环电出力；f_COMB(t)为调节后t时段燃气供暖锅炉与燃气联合循环的联合循环的功率能耗；

is the thermal efficiency of the combined cycle of the gas-fired heating boiler and the gas-fired combined cycle;

is the combined cycle power generation efficiency of the gas-fired heating boiler and the gas-fired combined cycle; p _COMB (t) is the combined cycle power output of the gas-fired heating boiler and the gas-fired combined cycle in the t period after adjustment; f _COMB (t) is the adjusted gas-fired heating boiler Power consumption of combined cycle with gas combined cycle;

3.2.4), Constraints of pure condensing thermal power units:

${\mathrm{<span\; class="notranslate">\; P</span>}}_{\mathrm{<span\; class="notranslate">\; CON</span>}}^{\mathrm{<span\; class="notranslate">\; min</span>}}<span\; class="notranslate">\; \&le;</span>{\mathrm{<span\; class="notranslate">\; p</span>}}_{\mathrm{<span\; class="notranslate">\; CON</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span>{\mathrm{<span\; class="notranslate">\; P</span>}}_{\mathrm{<span\; class="notranslate">\; CON</span>}}^{\mathrm{<span\; class="notranslate">\; max</span>}}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 12</span>}<span\; class="notranslate">\; )</span>$

为纯凝汽火电机组发电出力上限，单位为MW；为纯凝汽火电机组发电出力下限，单位为MW；in

is the upper limit of power generation output of the pure condensing steam thermal power unit, the unit is MW; is the lower limit of power generation output of pure condensing steam thermal power unit, the unit is MW;

3.2.5), user-side heat pump constraints:

Thermoelectric ratio constraints:

h _EHP (t, l) = COP _EHP p _EHP (t, l) (13)

Heat pump output upper limit:

0≤p _EHP (t, l)≤min(P _EHP (l), H _load (l)/COP _EHP )(14)

Among them, P _EHP (l) is the sum of the heat pump capacity of the first group of users, in MW; H _load (l) is the heating load of the first group of users, in MW; COP _EHP is the coefficient of performance of the heat pump; p _EHP ( t, l) is the sum of the heat pump power consumption of the first group of users, the unit is MW;

The sum of the air-conditioning heat pump power consumption of all user groups in each period:

${\mathrm{<span\; class="notranslate">\; p</span>}}_{\mathrm{<span\; class="notranslate">\; EHPs</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; =</span>\underset{\mathrm{<span\; class="notranslate">\; l</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 0</span>}}{\overset{\mathrm{<span\; class="notranslate">\; L</span>}}{\mathrm{<span\; class="notranslate">\; \&Sigma;</span>}}}{\mathrm{<span\; class="notranslate">\; p</span>}}_{\mathrm{<span\; class="notranslate">\; EHP</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; l</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 15</span>}<span\; class="notranslate">\; )</span>$

In the step 1), directly collect the variable P _COMB (t), P _CON (t); in the step 2), calculate the variable P _load (t), H _COMB (t), H _BOIL (t), H _load (l), P _EHP (l) is substituted into formulas 1-15 and jointly solved. When the total energy consumption f of the objective function is the minimum value, the gas-fired combined cycle heat output h _COMB of the gas-fired heating boiler and the gas-fired combined cycle obtained after optimization is obtained. (t), thermal output h _BOIL (t) of gas heating boiler and gas combined cycle gas heating boiler, combined cycle electric output p _COMB (t) of gas heating boiler and gas combined cycle (A), power consumption of heat pumps at different times for users Quantity p _EHP (t, l) and heating power h _EHP (t, l), thermal power generation output p _CON (t);

4), Send control signals to suppliers and users to perform actions:

The comprehensive dispatching control device sends the variable signal to the first remote centralized controller, the third remote centralized controller and the user's second remote centralized controller on the supply side according to the execution variable obtained after the optimization in step 3), and specifically performs the following actions :

A. Heat output h _COMB (t) of gas heating boiler and gas combined cycle gas heating boiler, gas heating boiler heat output h _BOIL (t) of gas heating boiler and gas combined cycle gas heating boiler and gas combined cycle (A) Combined cycle power output p _COMB (t) signal to control the actions of the gas heating boiler and the gas combined cycle in each period of the future adjustment time;

B. Heat pump power consumption p _EHP (t, l) and heating power h _EHP (t, l) at different times of the user, control the heating amount of the heat pump used by the user at different distances from the user side, and the amount of closing the radiator;

C. The output p _CON (t) signal of the thermal power unit controls the action of the thermal power unit in each period of the future adjustment time.

Now for the prior art, the beneficial effect of the present invention is that: the present invention adopts the joint output of gas heating boiler and gas combined cycle and pure condensing thermal power unit to generate power and provide electric energy to end users; the output of gas heating boiler and gas combined cycle The hot water is provided to the radiator of the end user; the invention collects the pipeline distance from the user to the heat source, and uses the pipeline distance to rationally schedule the condensing thermal power unit, the gas heating boiler and the gas combined cycle that originally operated independently, so that When it involves energy-saving scheduling during off-peak hours and energy-saving peak shaving during off-peak periods, adjust the power generation output of gas heating boilers and gas combined cycle and heating output, and the fuel consumption of pure condensing thermal power units according to the end user's demand for energy consumption The amount and power generation output, the power consumption of the end-user's air-conditioning heat pump heating, and the heating heat of the end-user's radiator, realize the comprehensive energy-saving scheduling and peak regulation of the power grid and the heating network; and effectively reduce the hot gas heating boiler and The total energy consumption of gas combined cycle and pure condensing thermal power unit avoids waste of fuel resources, and at the same time makes scheduling more timely and accurate.

Description of drawings

Fig. 1 is the connection schematic diagram of the combined heat and power dispatching system of the present invention;

Fig. 2 is the structural representation of the second remote centralized controller;

Fig. 3 is a structural schematic diagram of the executive device of the combined heat and power unit;

Fig. 4 is a structural schematic diagram of the executive device of the pure condensing gas thermal power unit;

Fig. 5 is a structural schematic diagram of an integrated dispatching control device;

6 is a schematic structural diagram of a control signal generating unit composed of an integrated dispatching control device and a cloud computing service system;

Fig. 7 is a graph of energy saving efficiency of heat pumps with different performances after using the scheduling method of the present invention.

Detailed ways

The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings.

Please refer to Figure 1, a joint dispatching system of combined cycle and pure condensing steam thermal power of the present invention includes:

Gas heating boiler and gas combined cycle A for generating electricity and heating hot water;

Coal-fired pure condensing steam thermal power unit B used to generate electric energy;

The air conditioner heat pump 108 connected in parallel with the gas heating boiler and gas combined cycle A and coal-fired pure condensing thermal power unit B through the power cable 113, the air conditioner heat pump 108 is controlled by the gas heating boiler and gas combined cycle A and Coal-fired pure condensing steam thermal power unit B is driven by electric energy to generate heating heat;

An electric energy meter 109 dedicated to the heat pump of the air conditioner, which is used to detect the power consumption data of the heat pump 108 of the air conditioner;

An air conditioner heat pump remote control switch 117 for controlling the air conditioner heat pump 108;

The electric meter (not shown) that collects the non-heating electricity of users;

The hot water heating radiator 110 connected to the gas heating boiler and the gas combined cycle A through the heating pipeline 114, the hot water produced by the gas heating boiler and the gas combined cycle A flows into the hot water heating radiator 110 produces heating heat energy;

Hot water heating radiator hot water consumption meter 111, used to detect the hot water consumption data of the hot water heating radiator 110;

Control the hot water heating radiator flow valve remote control switch 116 of the hot water heating radiator 110;

The first remote centralized controller 1121 collects the heating output hot water flow and power generation output of the gas heating boiler and the gas combined cycle A; and collects the heating output hot water flow and power generation output of the gas heating boiler and the gas combined cycle A Send to the integrated dispatching control device 115;

The second remote centralized controller 1122 collects the power consumption data detected by the special electric energy meter 109 for the air conditioner heat pump; records the pipeline distance information between the hot water heating radiator 110 and the gas heating boiler and the gas combined cycle A; collects heat The hot water consumption data detected by the water heating radiator hot water consumption meter 111; the thermal inertia time (the thermal inertia time is the user-acceptable stop heating time) data input by the user; and then the power consumption data of the air conditioner heat pump . The pipeline distance information, hot water consumption data and thermal inertia time data of the hot water heating radiator 110 are sent to the comprehensive scheduling control device 115;

The third remote centralized controller 1123 collects the fuel input amount of the coal-fired pure condensing-steam thermal power unit B, the amount of steam intake and the output power of power generation; The steam intake volume and power generation output are transmitted to the integrated dispatching control device 115;

The comprehensive scheduling control device 115 is composed of the heating output of the gas heating boiler and the gas combined cycle A, the hot water flow rate of the gas heating boiler and the gas combined cycle A, the power generation output of the gas heating boiler and the gas combined cycle A, the power generation output of the coal-fired pure condensing thermal power unit B, and the user The pipeline distance information of the hot water heating radiator 110, the user's non-heating electricity consumption data, the user's hot water consumption data and the thermal inertia time input by the user generate a scheduling control signal;

The first remote centralized controller 1121 receives the scheduling control signal sent by the comprehensive scheduling control device 115, and uses the scheduling control signal to control the gas heating boiler and gas combined cycle control execution device 118 of the gas heating boiler and gas combined cycle A;

The second remote centralized controller 1122 receives the dispatching control signal sent by the comprehensive dispatching control device 115, and uses the dispatching control signal to respectively drive the remote control switch 117 of the air conditioner heat pump and the remote control switch 116 of the flow valve of the hot water heating radiator to perform on/off actions;

The third remote centralized controller 1123 receives the dispatching control signal sent by the comprehensive dispatching control device 115, and uses the dispatching control signal to control the action of the coal-fired pure condensing-steam thermal power unit control execution device 119 of the coal-fired pure condensing-steam thermal power unit B.

Coal-fired pure condensing steam thermal power unit B is used to generate electric energy. The coal-fired pure condensing steam thermal power unit B includes a boiler 101 , a turbine 102 and an alternator 103 . The boiler 101 burns fuel to obtain heating heat energy, which is sent to the turbine 102 to obtain mechanical energy through pipelines, and the mechanical energy drives the alternator 103 to generate electric energy. The electric energy generated by the alternator 103 is transmitted to the air conditioner heat pump 108 and other electric appliances of the end users through the transmission line 113 . The air conditioner heat pump 108 at the end user can provide heating and heating for the air conditioner user under the drive of electric energy. Coal-fired pure condensing steam thermal power unit B also includes a valve ④ to control the amount of steam input.

The heat pump 108 of the air conditioner at the end user is connected in parallel with the gas heating boiler and gas combined cycle A and the coal-fired pure condensing thermal power unit B through the transmission line 113, which can be connected by the gas heating boiler and gas combined cycle A and the coal-fired pure condensing thermal power unit B. The electric energy generated by unit B jointly drives the heat pump 108 of the air conditioner to generate heating heat energy, and then provides heating and heating for air conditioner users. The air conditioner heat pump 108 also includes an air conditioner heat pump switch ⑤.

Please refer to FIG. 1 , the electric energy meter 109 is coupled with the air conditioner heat pump 108 ; The electric energy meter 109 is separately connected with the heat pump 108 of the air conditioner through wires, and is used for detecting the power consumption data of the heat pump 108 of the air conditioner for heating. The radiator 110 is connected to the gas heating boiler and the gas combined cycle A through the heating pipe 114, and the hot water produced by the gas heating boiler and the gas combined cycle A flows into the radiator 110 to generate heating heat energy. The hot water consumption meter 111 is coupled with the radiator 110 and is used to detect the heating heat consumption data of the radiator 110 . The radiator 110 is provided with an on-off valve ⑥. The second remote centralized controller 1122 collects the power consumption data detected by the air conditioner heat pump special electric energy meter 109 and transmits it to the comprehensive dispatching control device 115; collects the hot water consumption data detected by the hot water consumption meter 111 of the hot water heating radiator, And record the pipe distance information between the hot water heating radiator 110 and the gas heating boiler and the gas combined cycle A, and then transmit the hot water consumption data and pipe distance information to the comprehensive dispatching control device 115 .

Please refer to Figure 2, the second remote centralized controller 1122 includes air-conditioning meter pulse counters, non-heating meter pulse counters (not shown), heating and hot water flow pulse counters, pulse signal code converters, metering signal amplification transmitters, The control signal receiving decoder and the control signal remote control transmitter; the pulse counter of the air conditioner electric meter is connected to the special electric energy meter 109 for the air conditioner heat pump, and is used to detect the power consumption data detected by the special electric energy meter 109 for the air conditioner heat pump, and the electric power consumption detected by the pulse counter of the air conditioner electric meter The data pulse signal code converter and metering signal amplifying transmitter are processed and sent to the integrated dispatching control device 115;

The non-heating meter pulse counter is connected to the non-heating meter of the user to detect the non-heating power consumption data of the user (that is, the power consumption data of the user except the power consumption of the air conditioner and heat pump), and the non-heating power consumption data of the user is passed through the pulse signal code converter and metered After the signal is amplified and processed by the transmitter, it is sent to the integrated dispatching control device 115;

The heating hot water flow pulse counter is connected to the hot water consumption meter 111 of the hot water heating radiator, and is used to detect the heating flow data of the hot water consumption meter 111 of the hot water heating radiator. The flow data is processed by the pulse signal code converter and the metering signal amplifier transmitter, and the pipeline distance information between the hot water heating radiator 110, the gas heating boiler and the gas combined cycle A is sent to the comprehensive dispatching control device 115;

The control signal receiving decoder receives and decodes the scheduling control information sent by the integrated scheduling control device 115, and then sends the control signal to the heat pump remote switch 117 of the air conditioner and the water valve remote control switch of the hot water heating radiator through the control signal remote transmitter. 116 The action is performed.

The first remote centralized controller 1121 collects the heating output, hot water flow and power generation output of the gas heating boiler and the gas combined cycle A, and transmits the collected power generation output of the gas heating boiler and the gas combined cycle A to the comprehensive dispatching control device 115.

The third remote centralized controller 1123 collects the fuel input amount of the coal-fired pure condensing-steam thermal power unit B, the amount of steam intake and power generation output, and the collected fuel input amount of the coal-fired pure condensing-steam thermal power unit B, The amount of steam intake and power generation output are sent to the comprehensive dispatching control device 115 .

Please refer to FIG. 3 , the gas heating boiler and gas combined cycle control execution device 118 includes a dispatching control signal transceiving code memory 302 , a drive circuit 303 and a mechanical gear control device 304 , and the dispatching control signal is passed through the dispatching control signal transceiving code memory 302 After decoding, a coal-fired cogeneration unit dispatching control command is generated, and the electric drag signal output by the drive circuit 303 triggers the mechanical gear control device 304, and the mechanical gear control device 304 controls the valve action of the gas heating boiler and the gas combined cycle A. Thereby controlling the power generation output and heat output of the gas heating boiler and the gas combined cycle A.

Please refer to FIG. 4 , the control execution device 119 of the coal-fired pure condensing steam thermal power unit includes a dispatching control signal transceiving code memory 402, a drive circuit 403 and a mechanical gear control device 404, and the dispatching control signal is decoded by the dispatching control signal transceiving code memory 402 Afterwards, the coal-fired pure condensing steam thermal power unit scheduling control command is generated, and the electric drag signal output by the drive circuit 403 triggers the mechanical gear control device 404, and the mechanical gear control device 404 then controls the input steam of the coal-fired pure condensing steam thermal power unit B The volume valve ④ moves. Thereby controlling the power generation output of the coal-fired pure condensing steam thermal power unit B.

Please refer to Fig. 5, the comprehensive scheduling control device 115 includes:

Receive user non-heating power consumption data, user hot water consumption data, user pipeline distance information, heating output and hot water flow of gas heating boiler and gas combined cycle A, power generation output of gas heating boiler and gas combined cycle A, and coal-fired pure The first data receiving unit 201 of the power generation output of the condensing steam thermal power unit B; the data decoder unit 202 that decodes all the received data; the data memory unit 203 that stores all the decoded data; generates the scheduling control The scheduling control signal calculation unit 204 of the signal; the signal encoder 205 that encodes the scheduling control signal; and transmits the encoded scheduling control signal to the first remote centralized controller 1121, the second remote centralized controller 1122, the second The sending unit 206 of the three remote centralized controllers 1123.

Please refer to Fig. 6, the integrated dispatching control device 115 is connected with the cloud computing computing service system 917 through the power optical fiber 120, and drives the cloud computing computing service system 917 to calculate to obtain the dispatching control signal; The calculation computing service system 917 calculates and obtains the scheduling control signal, and then distributes the scheduling control signal to the first remote centralized controller, the second remote centralized controller, and the third remote centralized controller via a power cable or wireless transmission.

Please refer to Fig. 1 to Fig. 7, the dispatching method of the combined heat and power dispatching system of the present invention includes the following steps:

1), measurement:

1.1), measuring the supply side:

The first remote centralized controller 1121 collects the electric output P _COMB (t) of the combined cycle of the gas heating boiler and the gas combined cycle (A), the heat output H _COMB (t) of the combined cycle, and the output of the heating boiler during the period of 0 to T×ΔT. Heat output H _BOIL (t); sampling period is ΔT; T is the number of acquisitions, and T is a natural number;

The third remote centralized controller (1123) collects the power generation output power P _CON (t) of the coal-fired pure condensing steam thermal power unit (B) in the time period of 0～T×ΔT;

1.2), measuring the user side: i=0～N, N is the number of users; each user has an air conditioner heat pump (108) and a hot water heating radiator (110);

1.2.1), the second remote centralized controller (1122) collects the pipe distance S _i of N users from the heat source gas heating boiler and the gas combined cycle (A);

1.2.2), the second remote centralized controller (1122) collects the non-heating power consumption P _i (t) of N users in the period of 0～T×ΔT, and the sampling frequency is ΔT;

1.2.3), the second remote centralized controller (1122) collects the heat consumption H _i (t) of the hot water heating radiators (110) of N users in the period of 0～T×ΔT, and the sampling frequency is ΔT;

1.2.4), the second remote centralized controller (1122) collects the installed capacity of the air conditioner heat pump (108) of N users

1.2.5), the second remote centralized controller (1122) collects the thermal inertia time T _i input by N users;

2), calculation

2.1), the integrated scheduling control device 115 calculates the total power consumption of all users in each time period:

${\mathrm{<span\; class="notranslate">\; P</span>}}_{\mathrm{<span\; class="notranslate">\; sum</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; =</span>\underset{\mathrm{<span\; class="notranslate">\; i</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 1</span>}}{\overset{\mathrm{<span\; class="notranslate">\; N</span>}}{\mathrm{<span\; class="notranslate">\; \&Sigma;</span>}}}{\mathrm{<span\; class="notranslate">\; P</span>}}_{\mathrm{<span\; class="notranslate">\; i</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; ;</span>$

2.2), according to the total power consumption P _sum (t) of each period calculated in step 2.1, use the known SPSS (Statistical Product and Service Solutions) statistical analysis method or multiple regression statistical analysis method to predict (T ~ 2T) Power load P _lload (t) in the time period ×ΔT; the heat output H _COMB (t) of the combined cycle of the gas heating boiler and the gas combined cycle (A) collected according to step 1) and the heat output _HBOIL (t) of the heating boiler , to predict the thermal output H COMB (t) of _the combined cycle of the gas-fired heating boiler and the gas-fired combined cycle (A) and the thermal output H _BOIL (t) of the heating boiler in the future;

做取整运算，使

将相同的s_i的用户分为同一组，s_i＝l，分为0，，，l，，，L组，计为L组，L为自然数；v为热水在管道中的流速；ΔT为单位调节时间min，即综合调度控制装置发出控制信号的周期，本发明中单位调节时间等于采样周期；2.3), user grouping: calculate the equivalent distance from each user to the heat source

Do the rounding operation, so that

Divide users with the same s _i into the same group, s _i = l, divided into 0,,, l,,, L groups, counted as L groups, L is a natural number; v is the flow rate of hot water in the pipeline; ΔT It is the unit adjustment time min, i.e. the cycle of the control signal sent by the comprehensive scheduling control device, and the unit adjustment time is equal to the sampling period in the present invention;

2.4), for the L groups obtained in step 2.3), obtain the total heating load H _load (l) and heat pump capacity P _EHP (l) of all users in each group respectively;

H_i(t，l)为第1组用户i在t时刻的采暖负荷；

H _i (t, l) is the heating load of user i in the first group at time t;

为第1组用户i的热泵容量；

is the heat pump capacity of user i in the first group;

3), control calculation

3.1), objective function:

The total energy consumption f of the objective function is:

$\mathrm{<span\; class="notranslate">\; f</span>}<span\; class="notranslate">\; =</span>{\mathrm{<span\; class="notranslate">\; f</span>}}_{\mathrm{<span\; class="notranslate">\; COMB</span>}}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; f</span>}}_{\mathrm{<span\; class="notranslate">\; BOIL</span>}}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; f</span>}}_{\mathrm{<span\; class="notranslate">\; CON</span>}}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; f</span>}}_{\mathrm{<span\; class="notranslate">\; CON</span>}}^{\mathrm{<span\; class="notranslate">\; ramp</span>}}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; )</span>$

为纯凝汽火电机组爬坡能耗，单位为MWH；f _COMB is the power consumption of the combined cycle of the gas heating boiler and the gas combined cycle, the unit is MWH; f _BOIL is the power consumption of the gas heating boiler and the gas heating boiler of the gas combined cycle, the unit is MWH; f _CON is the pure condensate Power consumption of steam-thermal power unit, unit is MWH;

is the ramp-up energy consumption of the pure condensing steam thermal power unit, the unit is MWH;

in:

${\mathrm{<span\; class="notranslate">\; f</span>}}_{\mathrm{<span\; class="notranslate">\; COMB</span>}}<span\; class="notranslate">\; =</span>\underset{\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; =</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; T</span>}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; )</span>}{\overset{\mathrm{<span\; class="notranslate">\; 2</span>}\mathrm{<span\; class="notranslate">\; T</span>}}{\mathrm{<span\; class="notranslate">\; \&Sigma;</span>}}}\frac{{\mathrm{<span\; class="notranslate">\; h</span>}}_{\mathrm{<span\; class="notranslate">\; COMB</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span>}{{\mathrm{<span\; class="notranslate">\; \&eta;</span>}}_{\mathrm{<span\; class="notranslate">\; COMB</span>}}^{\mathrm{<span\; class="notranslate">\; q</span>}}}<span\; class="notranslate">\; \&Center\; Dot;</span>\mathrm{<span\; class="notranslate">\; \&Delta;T</span>}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 2</span>}<span\; class="notranslate">\; )</span>$

is the thermal efficiency of the combined cycle of the gas-fired heating boiler and the gas-fired combined cycle; h _COMB (t) is the combined cycle heat output of the adjusted gas-fired heating boiler and the gas-fired combined cycle;

${\mathrm{<span\; class="notranslate">\; f</span>}}_{\mathrm{<span\; class="notranslate">\; BOIL</span>}}<span\; class="notranslate">\; =</span>\underset{\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; =</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; T</span>}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; )</span>}{\overset{\mathrm{<span\; class="notranslate">\; 2</span>}\mathrm{<span\; class="notranslate">\; T</span>}}{\mathrm{<span\; class="notranslate">\; \&Sigma;</span>}}}\frac{{\mathrm{<span\; class="notranslate">\; h</span>}}_{\mathrm{<span\; class="notranslate">\; BOIL</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span>}{{\mathrm{<span\; class="notranslate">\; \&eta;</span>}}_{\mathrm{<span\; class="notranslate">\; BOIL</span>}}}<span\; class="notranslate">\; \&CenterDot;</span>\mathrm{<span\; class="notranslate">\; \&Delta;T</span>}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 3</span>}<span\; class="notranslate">\; )</span>$

η _BOIL is the thermal efficiency of the gas-fired heating boiler and the gas-fired combined cycle; h _BOIL (t) is the thermal output of the adjusted gas-fired heating boiler and the gas-fired combined cycle;

a), thermal power unit power consumption:

${\mathrm{<span\; class="notranslate">\; b</span>}}_{\mathrm{<span\; class="notranslate">\; CON</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; =</span>\frac{{\mathrm{<span\; class="notranslate">\; p</span>}}_{\mathrm{<span\; class="notranslate">\; CON</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span>}{\mathrm{<span\; class="notranslate">\; 0.003313105</span>}<span\; class="notranslate">\; \&Center\; Dot;</span>{\mathrm{<span\; class="notranslate">\; p</span>}}_{\mathrm{<span\; class="notranslate">\; CON</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; 0.082266676</span>}}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 4</span>}<span\; class="notranslate">\; )</span>$

${\mathrm{<span\; class="notranslate">\; f</span>}}_{\mathrm{<span\; class="notranslate">\; CON</span>}}<span\; class="notranslate">\; =</span>\underset{\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 0</span>}}{\overset{\mathrm{<span\; class="notranslate">\; T</span>}}{\mathrm{<span\; class="notranslate">\; \&Sigma;</span>}}}\mathrm{<span\; class="notranslate">\; 29.271</span>}<span\; class="notranslate">\; \&CenterDot;</span>{\mathrm{<span\; class="notranslate">\; p</span>}}_{\mathrm{<span\; class="notranslate">\; CON</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; \&CenterDot;</span>{\mathrm{<span\; class="notranslate">\; B</span>}}_{\mathrm{<span\; class="notranslate">\; CON</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; \&CenterDot;</span>\mathrm{<span\; class="notranslate">\; \&Delta;T</span>}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 5</span>}<span\; class="notranslate">\; )</span>$

b _CON (t) is the adjusted coal consumption of pure condensing steam thermal power unit in g/kWh; p _CON (t) is the MW of power generation output of pure condensing steam thermal power unit B after adjustment;

b), thermal power unit climbing energy consumption:

${\mathrm{<span\; class="notranslate">\; f</span>}}_{\mathrm{<span\; class="notranslate">\; CON</span>}}^{\mathrm{<span\; class="notranslate">\; ramp</span>}}<span\; class="notranslate">\; =</span>\underset{\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 1</span>}}{\overset{\mathrm{<span\; class="notranslate">\; T</span>}}{\mathrm{<span\; class="notranslate">\; \&Sigma;</span>}}}{\mathrm{<span\; class="notranslate">\; d</span>}}_{\mathrm{<span\; class="notranslate">\; CON</span>}}<span\; class="notranslate">\; \&CenterDot;</span><span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; p</span>}}_{\mathrm{<span\; class="notranslate">\; CON</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; -</span>{\mathrm{<span\; class="notranslate">\; p</span>}}_{\mathrm{<span\; class="notranslate">\; CON</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; )</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 6</span>}<span\; class="notranslate">\; )</span>$

d _CON is the climbing coal consumption coefficient of the thermal power unit (B);

3.2), constraint equation

3.2.1), power load balance

P _load (t)+p _EHPs (t)＝p _CON (t)+p _COMB (t) (7)

p _EHPs (t) is the sum of heating power consumption of all user heat pumps in t period after adjustment, in MW; p _COMB (t) is the combined cycle power output of gas heating boiler and gas combined cycle in t period after adjustment;

3.2.2), heat load balance equation

The core of the method is that the heat pump uses electric heating instead of gas heating boiler and gas combined cycle hot water heating output. If Δh(t) represents the insufficient power of gas heating boiler and gas combined cycle hot water heating in period t, then its expression The formula is:

Δh(t)＝|H _COMB (t)+H _BOIL (t)-h _COMB (t)+h _BOIL (t)|(8)

Insufficient hot water supply of gas-fired heating boilers and gas-fired combined cycle in period t is obtained by various user groups using heat pumps for heating. Due to the delay of hot water transmission, there is also a delay in the impact of hot water shortage, and this delay Varies with user group distance. For example, divide all users into approximate 0, 1, .., l, .., L user groups. For the first user group, the time for hot water to flow to it is a unit scheduling time, so hot water shortage will also be It will affect the first user group in the t+1 period, and similarly, the lack of hot water will affect the l user group in the t+l time. To sum up, the insufficient hot water supply of the gas-fired heating boiler and the gas-fired combined cycle in the t-th period will be compensated by the air-conditioning heat pumps of the 0-L user group through electricity consumption during the t-(t+L) period respectively. The specific formula is:

$\mathrm{<span\; class="notranslate">\; \&Delta;h</span>}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; =</span>\underset{\mathrm{<span\; class="notranslate">\; l</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 0</span>}}{\overset{\mathrm{<span\; class="notranslate">\; L</span>}}{\mathrm{<span\; class="notranslate">\; \&Sigma;</span>}}}{\mathrm{<span\; class="notranslate">\; h</span>}}_{\mathrm{<span\; class="notranslate">\; EHP</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; l</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; l</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; ,</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; T</span>}<span\; class="notranslate">\; \&le;</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; l</span>}<span\; class="notranslate">\; \&le;</span>\mathrm{<span\; class="notranslate">\; 2</span>}\mathrm{<span\; class="notranslate">\; T</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 9</span>}<span\; class="notranslate">\; )</span>$

Among them: _hEHP (t+l, l) is the sum of the heating power of user heat pumps in group l during t+l, in MW; _hEHP (t, l) is the sum of heating power of user heat pumps in group l during t and, the unit is MW; H _COMB (t) is the heat output of the gas-fired combined cycle of the gas-fired heating boiler and the gas-fired combined cycle (A) predicted in step 2.2); H _BOIL (t) is the gas-fired heating boiler predicted in step 2.2) h _COMB (t) is the thermal output of the gas heating boiler and the gas combined cycle (A) in the t period after adjustment; h _BOIL (t) is the adjusted The thermal output of the gas-fired heating boiler and the gas-fired combined cycle (A) in the next t period;

If _hEHP (t, l) in the formula can take 0, on the one hand, not all user groups participate in the compensation in certain time periods; To the remote user groups, these user groups will not participate in the compensation.

3.2.3), gas heating boiler and gas combined cycle constraints:

${\mathrm{<span\; class="notranslate">\; h</span>}}_{\mathrm{<span\; class="notranslate">\; COMB</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; =</span>{\mathrm{<span\; class="notranslate">\; f</span>}}_{\mathrm{<span\; class="notranslate">\; COMB</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; \&CenterDot;</span>{\mathrm{<span\; class="notranslate">\; \&eta;</span>}}_{\mathrm{<span\; class="notranslate">\; COMB</span>}}^{\mathrm{<span\; class="notranslate">\; q</span>}}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 10</span>}<span\; class="notranslate">\; )</span>$

${\mathrm{<span\; class="notranslate">\; p</span>}}_{\mathrm{<span\; class="notranslate">\; COMB</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; =</span>{\mathrm{<span\; class="notranslate">\; f</span>}}_{\mathrm{<span\; class="notranslate">\; COMB</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; \&CenterDot;</span>{\mathrm{<span\; class="notranslate">\; \&eta;</span>}}_{\mathrm{<span\; class="notranslate">\; COMB</span>}}^{\mathrm{<span\; class="notranslate">\; e</span>}}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 11</span>}<span\; class="notranslate">\; )</span>$

为燃气供暖锅炉与燃气联合循环的联合循环热效率；

为燃气供暖锅炉与燃气联合循环的联合循环发电效率；p_COMB(t)为调节后t时段燃气供暖锅炉与燃气联合循环A的联合循环电出力；f_COMB(t)为调节后t时段燃气供暖锅炉与燃气联合循环A的联合循环的功率能耗；

is the thermal efficiency of the combined cycle of the gas-fired heating boiler and the gas-fired combined cycle;

is the combined cycle power generation efficiency of the gas-fired heating boiler and the gas-fired combined cycle; p _COMB (t) is the combined cycle power output of the gas-fired heating boiler and the gas-fired combined cycle A in the adjusted period t; f _COMB (t) is the adjusted gas heating The power consumption of the combined cycle of boiler and gas combined cycle A;

3.2.4), Constraints of pure condensing thermal power units:

${\mathrm{<span\; class="notranslate">\; P</span>}}_{\mathrm{<span\; class="notranslate">\; CON</span>}}^{\mathrm{<span\; class="notranslate">\; min</span>}}<span\; class="notranslate">\; \&le;</span>{\mathrm{<span\; class="notranslate">\; p</span>}}_{\mathrm{<span\; class="notranslate">\; CON</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span>{\mathrm{<span\; class="notranslate">\; P</span>}}_{\mathrm{<span\; class="notranslate">\; CON</span>}}^{\mathrm{<span\; class="notranslate">\; max</span>}}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 12</span>}<span\; class="notranslate">\; )</span>$

为纯凝汽火电机组发电出力上限，单位为MW；

为纯凝汽火电机组发电出力下限，单位为MW；in

is the upper limit of power generation output of the pure condensing steam thermal power unit, the unit is MW;

is the lower limit of power generation output of pure condensing steam thermal power unit, the unit is MW;

3.2.5), user-side heat pump constraints:

Thermoelectric ratio constraint:

h _EHP (t, l) = COP _EHP p _EHP (t, l) (13)

Heat pump output upper limit:

0≤p _EHP (t, l)≤min(P _EHP (l), H _load (l)/COP _EHP ) (14)

Among them, P _CHP (l) is the sum of the heat pump capacity of the first group of users, in MW; H _load (l) is the heating load of the first group of users, in MW; COP _EHP is the coefficient of performance of the heat pump;

Finally, the power consumption of the air-conditioning heat pump for heating can not only compensate for the shortage of hot water heating, but also increase the load during low power periods. Therefore, the sum of the power consumption of the air-conditioning heat pump for all user groups in each period needs to be calculated:

${\mathrm{<span\; class="notranslate">\; p</span>}}_{\mathrm{<span\; class="notranslate">\; EHPs</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; =</span>\underset{\mathrm{<span\; class="notranslate">\; l</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 0</span>}}{\overset{\mathrm{<span\; class="notranslate">\; L</span>}}{\mathrm{<span\; class="notranslate">\; \&Sigma;</span>}}}{\mathrm{<span\; class="notranslate">\; p</span>}}_{\mathrm{<span\; class="notranslate">\; EHP</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; l</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 15</span>}<span\; class="notranslate">\; )</span>$

In the step 1), directly collect the variable P _COMB (t), P _CON (t); in the step 2), calculate the variable P _load (t), H _COMB (t), H _BOIL (t), H _load (l), P _EHP (l) is substituted into formulas 1-15 and jointly solved. When the total energy consumption f of the objective function is the minimum value, the gas-fired combined cycle heat output h _COMB of the gas-fired heating boiler and the gas-fired combined cycle obtained after optimization is obtained. (t), thermal output h _BOIL (t) of gas heating boiler and gas combined cycle gas heating boiler, combined cycle electric output p _COMB (t) of gas heating boiler and gas combined cycle (A), power consumption of heat pumps at different times for users Quantity p _EHP (t, l) and heating power h _EHP (t, l), thermal power generation output p _CON (t);

4), Send control signals to suppliers and users to perform actions:

The comprehensive scheduling control device 115 sends variable signals to the first remote centralized controller 1121, the third remote centralized controller 1123 and the user's second remote centralized controller 1122 according to the execution variables obtained after optimization in step 3), Specifically perform the following actions:

A. Heat output h _COMB (t) of gas heating boiler and gas combined cycle gas heating boiler, gas heating boiler heat output h _BOIL (t) of gas heating boiler and gas combined cycle gas heating boiler and gas combined cycle (A) Combined cycle power output p _COMB (t) signal to control the actions of the gas heating boiler and the gas combined cycle in each period of the future adjustment time;

B. Heat pump power consumption p _EHP (t, l) and heating power h _EHP (t, l) at different times of the user, control the heating amount of the heat pump used by the user at different distances from the user side, and the amount of closing the radiator;

C. The output p _CON (t) signal of the thermal power unit controls the action of the thermal power unit in each period of the future adjustment time.

In the present invention, t in step 1) is the time period of collection, t∈0～T; in steps 3), 4), t is the time period of scheduling, t∈(T+1)～2T.

Please refer to FIG. 7 , which is the energy-saving efficiency diagram of heat pumps with different performances after using the scheduling method of the present invention. It can be seen from the figure that the energy-saving effect of the heat pump is obvious after using the scheduling method of the present invention.

The above specific embodiments are only used to illustrate the present invention, but not to limit the present invention.

Claims (9)

1. a combined cycle and pure condensate vapour thermoelectricity combined dispatching system is characterized in that, comprising:

Be used for gas-heating boiler and the gas Combined circulation (A) of output electric power and heating hot water;

The coal-fired pure condensing-type fired power generating unit (B) that is used for the output electric energy;

By power cable (113) and described gas-heating boiler and gas Combined circulation (A) and coal-fired pure condensing-type fired power generating unit (B) air conditioner heat pump (108) in parallel, described air conditioner heat pump (108) by described gas-heating boiler with the electric energy driving of gas Combined circulation (A) and coal-fired pure condensing-type fired power generating unit (B) generation generation heating heat energy;

The air conditioner heat pump remote control switch (117) of control air conditioner heat pump (108);

Gather the ammeter of the non-heating electricity consumption of user;

By the hot-water type heating radiator (110) that heat supply pipeline (114) and described gas-heating boiler are connected with gas Combined circulation (A), the hot water that described gas-heating boiler and gas Combined circulation (A) are produced flows into and produces heating heat energy in the described hot-water type heating radiator (110);

Hot-water type heating radiator hot water consumes gauge table (111), for detection of the data of described hot-water type heating radiator (110) hot water consumption;

The hot-water type heating radiator flowing water valve remote control switch (116) of control hot-water type heating radiator (110);

The first remote centralized controller (1121) is gathered gas-heating boiler and the gas Combined heating of (A) hot water flow of exerting oneself that circulates, the generated output electric weight; And with the gas-heating boiler gathered and the gas Combined heating of (A) hot water flow of exerting oneself that circulates, the generated output electric weight sends integrated dispatch control device (115) to;

The second remote centralized controller (1122), the pipeline range information between its record hot-water type heating radiator (110) and gas-heating boiler and the gas Combined circulation (A); The second remote centralized controller (1122) is gathered hot-water type heating radiator hot water and is consumed the hot water consumption data that gauge table (111) detects, gather user's non-heating electricity consumption, non-heating electricity consumption, the hot water consumption data with pipeline range information, user sends integrated dispatch control device (115) to then;

The 3rd remote centralized controller (1123) is gathered the generated output electric weight of coal-fired pure condensing-type fired power generating unit (B); And the generated output electric weight of the coal-fired pure condensing-type fired power generating unit (B) that will gather sends integrated dispatch control device (115) to;

Integrated dispatch control device (115), by exert oneself generated output electric weight, user's pipeline range information, user's non-heating electricity consumption data and user's the hot water consumption data of hot-water type heating radiator (110) of generated output electric weight, coal-fired pure condensing-type fired power generating unit (B) of hot water flow, gas-heating boiler and gas Combined circulation (A) of the heating of gas-heating boiler and gas Combined circulation (A), generation scheduling control signal;

The first remote centralized controller (1121) receives the scheduling control signal that integrated dispatch control device (115) sends, and moves with gas-heating boiler and the gas Combined loop control final controlling element (118) of this scheduling control signal control gas-heating boiler and gas Combined circulation (A);

The second remote centralized controller (1122) receives the scheduling control signal that integrated dispatch control device (115) sends, and drives air conditioner heat pump remote control switch (117), hot-water type heating radiator flowing water valve remote control switch (116) execution action respectively with this scheduling control signal;

The 3rd remote centralized controller (1123) receives the scheduling control signal that integrated dispatch control device (115) sends, and controls coal-fired pure condensing-type fired power generating unit control final controlling element (119) action of coal-fired pure condensing-type fired power generating unit (B) with this scheduling control signal.

2. a kind of combined cycle according to claim 1 and pure condensate vapour thermoelectricity combined dispatching system, it is characterized in that integrated dispatch control device (115) is respectively applied to: calculate gas-heating boiler and gas Combined circulation (A) in the exert oneself scheduling control signal of hot water flow and generated output electric weight of each heating constantly; Calculate coal-fired pure condensing-type fired power generating unit (B) in the scheduling control signal of each generated output electric weight constantly; Calculate the air conditioner heat pump (108) of end user location in the scheduling control signal of each heating electric power consumption constantly; Calculate the terminal use and be in the scheduling control signal that each hot-water type heating radiator (110) constantly consumes heating hot water quantity;

Described hot-water type heating radiator flowing water valve remote control switch (116) is coupled with remote control mode and described integrated dispatch control device (115) by the second remote centralized controller (1122);

Air conditioner heat pump remote control switch (117) is coupled with remote control mode and described integrated dispatch control device (115) by the second remote centralized controller (1122);

Gas-heating boiler and gas Combined loop control final controlling element (118) are coupled with remote control mode and described integrated dispatch control device (115) by the first remote centralized controller (1121); Described gas-heating boiler and gas Combined loop control final controlling element (118) are controlled connected valve event according to the scheduling control signal that obtains.

3. a kind of combined cycle according to claim 1 and pure condensate vapour thermoelectricity combined dispatching system is characterized in that described integrated dispatch control device (115) comprising:

Receive the non-heating power consumption of user data, user's hot water consumption data, user pipe range information, gas-heating boiler and the heating of gas Combined circulation (A) the circulate first data receiving element (201) of generated output electric weight of the generated output electric weight of (A) and coal-fired pure condensing-type fired power generating unit (B) of hot water flow, gas-heating boiler and gas Combined of exerting oneself;

The data decoder unit (202) that all data that receive are decoded;

The data memory unit (203) that decoded all data are stored;

Generate the scheduling control signal computing unit (204) of scheduling control signal;

Described scheduling control signal is carried out encoded signals encoder (205); And

Scheduling control signal behind the coding is passed to the transmitting element (206) of the first remote centralized controller (1121), the second remote centralized controller (1122), the 3rd remote centralized controller (1123).

4. a kind of combined cycle according to claim 1 and pure condensate vapour thermoelectricity combined dispatching system, it is characterized in that, described gas-heating boiler and gas Combined loop control final controlling element (118) comprise scheduling control signal transmitting-receiving coded stack (302), drive circuit (303) and mechanical gear control device (304), described scheduling control signal generates gas-heating boiler and gas Combined round-robin scheduling control command after the decoding of scheduling control signal transmitting-receiving coded stack, through the Electric Traction signal triggering mechanical gear control device of overdrive circuit output, the mechanical gear control device is controlled the valve event of gas-heating boiler and gas Combined circulation again.

5. a kind of combined cycle according to claim 1 and pure condensate vapour thermoelectricity combined dispatching system, it is characterized in that, the pure condensing-type fired power generating unit control final controlling element of described fire coal (119) comprises scheduling control signal transmitting-receiving coded stack (402), drive circuit (403) and mechanical gear control device (404), described scheduling control signal generates coal-fired pure condensing-type fired power generating unit scheduling controlling instruction after the decoding of scheduling control signal transmitting-receiving coded stack, through the Electric Traction signal triggering mechanical gear control device of overdrive circuit output, the mechanical gear control device is controlled coal-fired charging valve event and the generating steam flow valve event of coal-fired pure condensing-type fired power generating unit again.

6. a kind of combined cycle according to claim 1 and pure condensate vapour thermoelectricity combined dispatching system, it is characterized in that, integrated dispatch control device (115) is connected with cloud computing calculation services system (917) by power optical fiber (120), and drive cloud computing calculation services system (917) calculating, to obtain scheduling control signal; Integrated dispatch control device (115) receives cloud computing calculation services system (917) by power optical fiber (120) and calculates the scheduling control signal that obtains, and issues this scheduling control signal via power cable or wireless transmission method then and gives the first remote centralized controller, the second remote centralized controller, the 3rd remote centralized controller.

7. a kind of combined cycle according to claim 1 and pure condensate vapour thermoelectricity combined dispatching system, it is characterized in that, the described second remote centralized controller comprises non-heating ammeter pulse counter, heating hot water flow pulse counter, pulse-code transducer, metering signal amplifying emission device, and interconnective control signal Rcv decoder and control signal remote control transmitter;

Non-heating ammeter pulse counter connects the non-heating ammeter of user, for detection of the non-heating power consumption of user data, after handling, the non-heating power consumption of user data process pulse-code transducer and metering signal amplifying emission device be sent to integrated dispatch control device (115);

Heating hot water flow pulse counter connects hot-water type heating radiator hot water and consumes gauge table (111), for detection of the heating data on flows that hot-water type heating radiator hot water consumes gauge table (111), heating hot water flow pulse counter detects the heating data on flows that obtains and is sent to integrated dispatch control device (115) through the pipeline range information between pulse-code transducer and metering signal amplifying emission device processing back and hot-water type heating radiator (110) and gas-heating boiler and the gas Combined circulation (A);

The control signal Rcv decoder, the scheduling control information that reception integrated dispatch control device (115) sends is also decoded, and by the control signal remote control transmitter control signal is sent to air conditioner heat pump remote control switch (117), hot-water type heating radiator flowing water valve remote control switch (116) execution action then.

8. a kind of combined cycle according to claim 1 and pure condensate vapour thermoelectricity combined dispatching system, it is characterized in that, the described second remote centralized controller (1122) also is used for gathering the thermal inertia time data of user's input, and sends these data to integrated dispatch control device (115); The described thermal inertia time is that user's acceptable stops heating duration.

9. according to the dispatching method of each described a kind of combined cycle in the claim 1 to 8 and pure condensate vapour thermoelectricity combined dispatching system, it is characterized in that, may further comprise the steps:

1), measure:

1.1), measure supply side:

Gather the first remote centralized controller (1121) 0～T * Δ T time period gas-heating boiler and the gas Combined combined cycle electricity of (A) P that exerts oneself that circulates _COMB(t), the heat of the combined cycle H that exerts oneself _COMB(t) and the heat of the heating boiler H that exerts oneself _BOIL(t); Sampling period is Δ T; The number of times of T for gathering, T is natural number;

The 3rd remote centralized controller (1123) is gathered the generated output electric weight P of coal-fired pure condensing-type fired power generating unit of 0～T * Δ T time period (B) _CON(t);

1.2), measure user's side: i=0～N, N are user's number; Each is with having air conditioner heat pump (108) and hot-water type heating radiator (110) per family;

1.2.1), the second remote centralized controller (1122) gathers N user and circulates the pipeline of (A) apart from S apart from thermal source gas-heating boiler and gas Combined _i

1.2.2), the second remote centralized controller (1122) gathers the 0～T * non-heating power consumption of Δ T time period N user P _i(t), the sampling period is Δ T;

1.2.3), the second remote centralized controller (1122) gathers the heat consumption H of 0～T * Δ T time period N user's hot-water type heating radiator (110) _i(t), the sampling period is Δ T;

1.2.4), the second remote centralized controller (1122) gathers N user's air conditioner heat pump (108) installed capacity

1.2.5), the second remote centralized controller (1122) gathers the thermal inertia time T that N user imports _i

2), calculate

2.1), integrated dispatch control device (115) calculates the total power consumption of all user's day parts:

$P_{\mathrm{sum}}\left(t\right)=\underset{i=0}{\overset{N}{\mathrm{\&Sigma;}}}{P}_i\left(t\right);$

2.2), according to step 2.1) in the day part total electricity consumption P that calculates _Sum(t), utilize statistical analysis technique, the electric load P of the following a period of time section of prediction _Load(t); The gas-heating boiler of gathering according to step 1) and the gas Combined heat of combined cycle of (A) H that exerts oneself that circulates _COMB(t) and the heat of the heating boiler H that exerts oneself _BOIL(t), the gas-heating boiler of following a period of time of prediction and the gas Combined heat of combined cycle of (A) H that exerts oneself that circulates _COMB(t) and the heat of the heating boiler H that exerts oneself _BOIL(t);

2.3), user grouping: calculate each user to the equivalent distances of thermal source

Do rounding operation, make

, with identical s _iThe user be divided into same group, s _i=l adds up to the L group, and L is natural number; V is that hot water is at ducted flow velocity;

2.4), to step 2.3) in L the group of getting, obtain the total heating load H that respectively organizes all users respectively _Load(l) and heat pump capacity P _EHP(l);

H _Load(l)=∑ H _i(t, l); H _i(t is that l group user i is in t heating load constantly l);

It is the heat pump capacity of l group user i;

3), control is calculated

3.1), target function:

Target function total energy consumption f is:

$f=f_{\mathrm{COMB}}+f_{\mathrm{BOIL}}+f_{\mathrm{CON}}+f_{\mathrm{CON}}^{\mathrm{ramp}}---\left(1\right)$

f _COMBBe the power energy consumption of the combined cycle of gas-heating boiler and gas Combined circulation, unit is MWH; f _BOILBe the power energy consumption of the gas-heating boiler of gas-heating boiler and gas Combined circulation, unit is MWH; f _CONBe pure condensate vapour fired power generating unit power energy consumption, unit is MWH;

Be pure condensate vapour fired power generating unit climbing energy consumption, unit is MWH;

Wherein:

$f_{\mathrm{COMB}}=\underset{t=(T+1)}{\overset{2T}{\mathrm{\&Sigma;}}}\frac{h_{\mathrm{COMB}}\left(t\right)}{{\mathrm{\&eta;}}_{\mathrm{COMB}}^q}\&CenterDot;\mathrm{\&Delta;T}---\left(2\right)$

The combined cycle heat efficiency for gas-heating boiler and gas Combined circulation; h _COMB(t) exert oneself for the combined cycle heat of regulating the circulation of back combustion gas heating boiler and gas Combined;

$f_{\mathrm{COMB}}=\underset{t=(T+1)}{\overset{2T}{\mathrm{\&Sigma;}}}\frac{h_{\mathrm{BOIL}}\left(t\right)}{{\mathrm{\&eta;}}_{\mathrm{BOIL}}}\&CenterDot;\mathrm{\&Delta;T}---\left(3\right)$

η _BOILGas-heating boiler thermal output for gas-heating boiler and gas Combined circulation; h _BOIL(t) exert oneself for the gas-heating boiler hot of regulating the circulation of back combustion gas heating boiler and gas Combined;

A), fired power generating unit power energy consumption:

$b_{\mathrm{CON}}\left(t\right)=\frac{p_{\mathrm{CON}}\left(t\right)}{0.003313105\&CenterDot;p_{\mathrm{CON}}\left(t\right)-0.082266676}---\left(4\right)$

$f_{\mathrm{CON}}=\underset{t=0}{\overset{T}{\mathrm{\&Sigma;}}}29.271\&CenterDot;p_{\mathrm{CON}}\left(t\right)\&CenterDot;b_{\mathrm{CON}}\left(t\right)\&CenterDot;\mathrm{\&Delta;T}---\left(5\right)$

b _CON(t) for regulating back pure condensate vapour fired power generating unit gross coal consumption rate amount, unit is g/kWh; p _CON(t) for regulating back pure condensate vapour fired power generating unit generated output, unit is MW;

B), fired power generating unit climbing energy consumption:

$f_{\mathrm{CON}}^{\mathrm{ramp}}=\underset{t=1}{\overset{T}{\mathrm{\&Sigma;}}}{d}_{\mathrm{CON}}\&CenterDot;(p_{\mathrm{CON}}\left(t\right)-p_{\mathrm{CON}}(t-1))---\left(6\right)$

d _CONClimbing coal consumption coefficient for fired power generating unit (B);

3.2), constraint equation

3.2.1), the electric load balance

P _load(t)+p _EHPs(t)=p _CON(t)+p _COMB(t) （7）

p _EHPs(t) for regulating back all user's heat pump heating power consumption sums of t period, unit is MW; p _COMB(t) exert oneself for the combined cycle electricity of regulating the circulation of back t period gas-heating boiler and gas Combined;

3.2.2), the heat load equilibrium equation

Δh(t)=|H _COMB(t)+H _BOIL(t)-h _COMB(t)+h _BOIL(t)| （8）

$\begin{array}{cc}\mathrm{\&Delta;h}\left(t\right)=\underset{l=0}{\overset{L}{\mathrm{\&Sigma;}}}{h}_{\mathrm{EHP}}(t+l,l)& (T\&le;t+l\&le;2T)---\left(9\right)\end{array}$

Wherein: h _EHP(t+l is the heating power sum of t+l period l group user heat pump l), and unit is MW; h _EHP(t is the heating power sum of t period l group user heat pump l), and unit is MW; H _COMB(t) for step 2.2) the circulate gas Combined cycling hot of (A) t period of gas-heating boiler and the gas Combined of prediction exerts oneself; H _BOIL(t) for step 2.2) the circulate gas-heating boiler hot of (A) t period of gas-heating boiler and the gas Combined of prediction exerts oneself; h _COMB(t) exert oneself for the gas Combined cycling hot of regulating back t period gas-heating boiler and gas Combined circulation (A); h _BOIL(t) exert oneself for the gas-heating boiler hot of regulating back t period gas-heating boiler and gas Combined circulation (A);

3.2.3), gas-heating boiler and gas Combined circulation constraint:

$h_{\mathrm{COMB}}\left(t\right)=f_{\mathrm{COMB}}\left(t\right)\&CenterDot;{\mathrm{\&eta;}}_{\mathrm{COMB}}^q---\left(10\right)$

$p_{\mathrm{COMB}}\left(t\right)=f_{\mathrm{COMB}}\left(t\right)\&CenterDot;{\mathrm{\&eta;}}_{\mathrm{COMB}}^e---\left(11\right)$

The combined cycle heat efficiency for gas-heating boiler and gas Combined circulation;

Combined cycle generation efficient for gas-heating boiler and gas Combined circulation; p _COMB(t) exert oneself for the combined cycle electricity of regulating back t period gas-heating boiler and gas Combined circulation (A); f _COMB(t) be the power energy consumption of regulating the combined cycle of back t period gas-heating boiler and gas Combined circulation (A);

3.2.4), pure condensate formula fired power generating unit constraint:

$P_{\mathrm{CON}}^{\min }\&le;p_{\mathrm{CON}}\left(t\right)\&le;P_{\mathrm{CON}}^{\max }---\left(12\right)$

Wherein Be the pure condensate vapour fired power generating unit generated output upper limit, unit is MW;

Be pure condensate vapour fired power generating unit generated output lower limit, unit is MW;

3.2.5), user's side heat pump constraint:

Thermoelectric than constraint:

h _EHP(t,l)=COP _EHP·p _EHP(t,l) （13）

The heat pump upper limit of exerting oneself:

0≤ _pEHP(t,l)≤min(P _EHP(l),H _load(l)/COP _EHP) （14）

Wherein, P _EHP(l) be l group user's heat pump capacity sum, unit is MW; H _Load(l) be l group user's heating load, unit is MW; COP _EHPBe the heat pump performance coefficient; p _EHP(t is l group user's heat pump power consumption sum l), and unit is MW;

The air-conditioning heat pump power consumption sum of all user's groups of day part:

$p_{\mathrm{EHPs}}\left(t\right)=\underset{l=0}{\overset{L}{\mathrm{\&Sigma;}}}{p}_{\mathrm{EHP}}(t,l)---\left(15\right)$

Variable P will directly be gathered in the step 1) _COMB(t), P _CON(t); Step 2) calculates variable P in _Load(t), H _COMB(t), H _BOIL(t), H _Load(l), P _EHP(l) in the substitution formula 1～15 and unite and find the solution, when target function total energy consumption f is minimum value, tries to achieve and optimize gas Combined cycling hot that back gained performance variable gas-heating boiler and gas Combined the circulate h that exerts oneself _COMB(t), the gas-heating boiler hot h that exerts oneself of gas-heating boiler and gas Combined circulation _BOIL(t), the combined cycle electricity p that exerts oneself of gas-heating boiler and gas Combined circulation (A) _COMB(t), the different heat pump power consumption constantly of user p _EHP(t is l) with heating power h _EHP(t, l), fired power generating unit generated output p _CON(t);

4), send control signals to supply and user and carry out action:

Integrated dispatch control device (115) according to the optimization of step 3) after the gained performance variable, variable signal is sent to the first remote centralized controller (1121), the 3rd remote centralized controller (1123) and the user's of supply side the second remote centralized controller (1122), specifically carries out following action:

The gas Combined cycling hot of A, gas-heating boiler and the gas Combined circulation h that exerts oneself _COMB(t), the gas-heating boiler hot h that exerts oneself of gas-heating boiler and gas Combined circulation _BOIL(t), the combined cycle electricity p that exerts oneself of gas-heating boiler and gas Combined circulation (A) _COMB(t) signal, control gas-heating boiler and gas Combined circulate in the action of day part in the following adjusting time;

B, the different heat pump power consumption constantly of user p _EHP(t is l) with heating power h _EHP(t, l), control user side different distance user uses the heat pump heating amount, and closes the heat radiation tolerance;

C, fired power generating unit generated output p _CON(t) signal, the control fired power generating unit will be regulated the action of day part in the time in future.

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