CN102510098A

CN102510098A - Extraction condensing cogeneration and straight condensing thermal power combined dispatching system and method

Info

Publication number: CN102510098A
Application number: CN2011103239453A
Authority: CN
Inventors: 龙虹毓; 吴锴; 杨玉龙
Original assignee: Xian Jiaotong University
Current assignee: Xian Jiaotong University
Priority date: 2011-10-23
Filing date: 2011-10-23
Publication date: 2012-06-20
Anticipated expiration: 2031-10-23
Also published as: WO2013060083A1; CN102510098B

Abstract

The invention provides a combined dispatching system and method of condensing heat and power cogeneration and pure condensing steam thermal power, including cogeneration units, pure condensing steam thermal power units, centralized heat absorption refrigerators, air conditioners, electric energy meters, refrigeration The fan coil unit, the cold water consumption meter, the second remote centralized controller that collects the power consumption data detected by the electric energy meter and the cold water consumption data detected by the cold water consumption meter, and controls the thermal power through the first to third remote centralized controllers. Scheduling and control devices for cogeneration units, pure condensing thermal power units, air conditioners and fan coil operations. The present invention collects the pipeline distance from the user to the heat source, and utilizes the pipeline distance to reasonably jointly dispatch the condensing gas thermal power unit and the cogeneration unit that originally operated independently, effectively reducing the distance between the cogeneration unit and the pure gas condensing thermal power unit. Total energy consumption, avoid wasting fuel resources, and make scheduling more timely and accurate.

Description

Combined scheduling system and method of extraction condensing cogeneration and pure condensing thermal power

技术领域 technical field

本发明涉及城市综合能源供应系统，尤其涉及一种利用对制冷负荷的调度实现电力系统最优化控制的方法。The invention relates to an urban comprehensive energy supply system, in particular to a method for realizing optimal control of a power system by dispatching refrigeration loads.

背景技术 Background technique

现有的电网中包括两种发电模式：一种是单独由热电联产机组发电出力提供电能，另一种是单独由凝汽式火电机组发电出力提供电能。这两种发电机组各自独立运行。其中热电联产机组为终端用户供应电能的同时提供采暖热能。而凝汽式火电机组只能提供给终端用户电能，热能则需要靠另外的热能厂来供应。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.

热电联产机组运行的物理状态受到“以热定电”的运行工况图限制。即在一定供热量情况下，存在最小发电量和最大发电量限制。如图1表示的是型号为C12-3.43/0.490(D56)的汽轮机热电联产机组供热和发电出力的运行工况图。对应每一个采暖抽气量Q的物理状态，允许热电联产机组有最小发电出力P_min和最大发电出力P_max。针对一定的电网总负荷，在满足一定的采暖负荷的情况下，热电联产机组大于最小发电出力的部分，该出力是多少才是节能的呢？The physical state of cogeneration unit operation is limited by the operating condition map of "power determined by heat". That is to say, under the condition of certain heat supply, there are minimum and maximum power generation limits. As shown in Figure 1, it is the operating condition diagram of the heat supply and power generation output of the steam turbine combined heat and power unit of the model C12-3.43/0.490 (D56). Corresponding to the physical state of each heating extraction volume Q, the combined heat and power unit is allowed to have a minimum power generation output P _min and a maximum power generation output P _max . For a certain total load of the power grid, under the condition of meeting a certain heating load, the part of the combined heat and power unit that is greater than the minimum power generation output, how much energy can be saved?

公告号为CN1259834C的中国发明专利揭示了一种双源供暖空调系统及利用该系统采暖供热/供冷的方法。该专利解决了将热电联产生产的电能与采暖热能充分利用的问题。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.

公告号为CN100580327C的中国发明专利揭示了一种热电联产供能方法及系统。该专利将居民采暖用户划分为空调器热泵采暖和散热器供暖用户，由热电联产机组单独向上述采暖用户分别提供电能和采暖热能供其冬季采暖需要，以提高能源利用。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.

由此可见，上述两件专利都只是解决了单独如何有效利用热电联产机组产出的电能和热能的问题。而并未解决与纯凝汽式火电机组配合情况下如何控制热电联产机组应该承担的采暖和发电出力为多少才能够节能的问题。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.

请参阅图2所示，为现有热电火电调度计划图。燃煤电厂是我国北方地区主力电厂，所占比例超过95％。近年来为了满足采暖和节能需求，各级政府大力推广热电联产技术，导致我国现在北方地区电网内的电源主要由抽凝式热电联产机组和纯凝汽火电机组构成。夏季制冷期电网日负荷峰谷差较大：在高峰时期，承担制冷任务的热电联产机组存在最大发电出力限制，无法增加发电出力承担调峰任务。在夜间电力负荷低谷时期，全网平均负荷率往往仅为50％～60％；热电联产机组承担供暖任务，有最小发电出力要求，给电网调度带来困难，电网需要调度纯凝汽火电机组提供调峰辅助服务，在《西北区域并网发电厂辅助服务管理实施细则(试行)》中针对大型纯凝汽火电机组(如300MW)规定了基本调峰为60％至额定容量范围。这种调峰方式造成低负荷运行的高煤耗损失，从电网整体能耗来看是不节能的。Please refer to Figure 2, which is a diagram of the existing thermal power thermal power dispatch plan. Coal-fired power plants are the main power plants in northern my country, accounting for more than 95%. In recent years, in order to meet the needs of heating and energy saving, governments at all levels have vigorously promoted cogeneration technology. As a result, the power supply in the power grid in northern my country is mainly composed of extraction condensing cogeneration units and pure condensing steam thermal power units. During the cooling period in summer, the daily load peak-to-valley difference of the power grid is relatively large: during the peak period, the combined heat and power unit undertaking the cooling task has a maximum power generation output limit, and cannot increase the power generation output to undertake the peak-shaving task. During the low power load period at night, the average load rate of the entire network is often only 50% to 60%. The combined heat and power unit undertakes the heating task and has a minimum power generation output requirement, which brings difficulties to the power grid. The power grid needs to dispatch pure condensing steam thermal power units To provide peak shaving auxiliary services, in the "Northwest Regional Grid-connected Power Plant Auxiliary Service Management Implementation Rules (Trial)" for large pure condensing steam thermal power units (such as 300MW), the basic peak shaving is 60% to the rated capacity range. This method of peak regulation results in high coal consumption loss in low-load operation, which is not energy-saving in terms of overall energy consumption of the power grid.

燃煤抽汽凝汽式热电联产机组产出的采暖热水经集中式热吸收式制冷机转换为冷水，由于输送距离及冷水流速的限制，送达用户具有一定的距离，而产出的电力则可以瞬间到达用户；现有技术中，没有根据燃煤抽汽凝汽式热电联产机组与采暖用户之间的距离，合理对燃煤抽汽凝汽式热电联产机组和燃煤纯凝汽式火电机组进行联合调度控制的系统及方法，使得调度更加的及时、准确，避免浪费能源。The heating hot water produced by the coal-fired steam extraction and condensing cogeneration unit is converted into cold water by the centralized heat absorption refrigerator. Due to the limitation of the transportation distance and the flow rate of cold water, there is a certain distance to reach the user, and the output Electricity can reach the user instantly; in the prior art, there is no reasonable adjustment of the coal-fired extraction and condensing type cogeneration unit and the coal-fired pure The system and method for joint scheduling control of condensing steam thermal power units make scheduling more timely and accurate, and avoid wasting energy.

发明内容 Contents of the invention

本发明的目的是建立热电联合调度系统及其调度方法，使得该系统根据燃煤抽汽凝汽式热电联产机组与冷水用户之间的距离，合理对燃煤抽汽凝汽式热电联产机组和燃煤纯凝汽式火电机组进行联合调度，以满足终端用户的冷水供冷量和非采暖用电量的需求，并减少总能耗达到节能目的。The purpose of the present invention is to establish a combined heat and power dispatching system and its dispatching method, so that the system can reasonably adjust the coal-fired extraction and condensing type cogeneration heat and power according to the distance between the coal-fired extraction and condensation type cogeneration unit and the cold water user. The unit and the coal-fired pure condensing steam thermal power unit are jointly dispatched to meet the end user's demand for cold water supply and non-heating electricity consumption, and reduce total energy consumption to achieve energy conservation.

为了实现上述目的，本发明一种抽凝式热电联产与纯凝汽火电联合调度系统采用如下技术方案：In order to achieve the above purpose, the present invention adopts the following technical scheme for a joint dispatching system of extraction condensing cogeneration and pure condensing steam thermal power:

一种抽凝式热电联产与纯凝汽火电联合调度系统，包括：A joint dispatching system of extraction condensing cogeneration and pure condensing steam thermal power, including:

用于产出电力和采暖热水的燃煤抽汽凝汽式热电联产机组；Coal-fired steam extraction and condensing cogeneration units for generating electricity and heating hot water;

用于产出电能的燃煤纯凝汽式火电机组；Coal-fired pure condensing steam thermal power units for generating electric energy;

集中式热吸收式制冷机，连接燃煤抽汽凝汽式热电联产机组的热水出口，并将热水转化为冷水，通入供热管道；The centralized heat absorption chiller is connected to the hot water outlet of the coal-fired steam extraction and condensing cogeneration unit, and converts the hot water into cold water and passes it into the heating pipeline;

通过电力电缆与所述燃煤抽汽凝汽式热电联产机组和燃煤纯凝汽式火电机组并联的空调器，所述空调器由所述燃煤抽汽凝汽式热电联产机组和燃煤纯凝汽式火电机组产生的电能驱动而产生制冷冷风；An air conditioner connected in parallel with the coal-fired extraction and condensing type cogeneration unit and the coal-fired pure condensing type thermal power unit through a power cable, the air conditioner is composed of the coal-fired extraction and condensing type cogeneration unit and Coal-fired pure condensing steam thermal power unit is driven by electric energy to generate cooling air;

控制空调器的空调器遥控开关；Air conditioner remote control switch for controlling the air conditioner;

采集用户非制冷用电的电表；The electricity meter that collects the user's non-cooling electricity;

通过供热管道与所述集中式热吸收式制冷机相连接的制冷风机盘管，所述集中式热吸收式制冷机生产的冷水流入所述制冷风机盘管中产生制冷冷风；A refrigeration fan coil connected to the centralized heat absorption refrigerator through a heating pipeline, the cold water produced by the centralized heat absorption refrigerator flows into the refrigeration fan coil to generate refrigeration and cold air;

制冷风机盘管冷水消耗计量表，用于检测所述制冷风机盘管冷水消耗的数据；A refrigeration fan coil cold water consumption meter, used to detect the data of the refrigeration fan coil cold water consumption;

控制制冷风机盘管的制冷风机盘管流水阀门遥控开关；Control the remote control switch of the cooling fan coil flow water valve of the cooling fan coil;

第一远程集中控制器，采集燃煤抽汽凝汽式热电联产机组的供暖出力热水流量，发电出力电量；并将采集的燃煤抽汽凝汽式热电联产机组的供暖出力热水流量，发电出力电量传送给综合调度控制装置；The first remote centralized controller collects the heating output hot water flow rate of the coal-fired extraction and condensing type cogeneration unit, and generates power output; Flow rate, power generation and output power are transmitted to the integrated dispatching control device;

第二远程集中控制器，其记载制冷风机盘管与燃煤抽汽凝汽式热电联产机组之间的管道距离信息；第二远程集中控制器采集制冷风机盘管冷水消耗计量表检测的冷水消耗数据，采集用户的非冷水用电，然后将管道距离信息、用户的非冷水用电、冷水消耗数据传送给综合调度控制装置；The second remote centralized controller records the pipe distance information between the refrigeration fan coil unit and the coal-fired steam extraction and condensing type cogeneration unit; the second remote centralized controller collects the cold water detected by the refrigeration fan coil cold water consumption meter Consumption data, collect the user's non-cooling water power consumption, and then transmit the pipeline distance information, the user's non-cooling water power consumption, and cold water consumption data to the comprehensive dispatching control device;

第三远程集中控制器，采集燃煤纯凝汽式火电机组的发电出力电量；并将采集的燃煤纯凝汽式火电机组的发电出力电量传送给综合调度控制装置；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;

综合调度控制装置，由燃煤抽汽凝汽式热电联产机组的供暖出力热水流量、燃煤抽汽凝汽式热电联产机组的发电出力电量、燃煤纯凝汽式火电机组的发电出力电量、用户的制冷风机盘管的管道距离信息、用户的非制冷用电数据和用户的冷水消耗数据，生成调度控制信号；The comprehensive scheduling control device consists of the heating output and hot water flow of the coal-fired steam extraction and condensing cogeneration unit, the power generation output of the coal-fired steam extraction and condensing cogeneration unit, and the power generation of the coal-fired pure condensing thermal power unit. Output power, pipe distance information of the user's cooling fan coil unit, user's non-refrigeration power consumption data and user's cold water consumption data to generate a dispatch control signal;

第一远程集中控制器接收综合调度控制装置所发出的调度控制信号，并用该调度控制信号控制燃煤抽汽凝汽式热电联产机组的燃煤热电联产机组控制执行装置动作；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 coal-fired heat and power cogeneration unit control executive device of the coal-fired steam extraction and condensing type cogeneration unit;

第二远程集中控制器接收综合调度控制装置所发出的调度控制信号，并用该调度控制信号分别驱动空调器遥控开关、制冷风机盘管流水阀门遥控开关执行动作；The second remote centralized controller receives the dispatching control signal sent by the integrated dispatching control device, and uses the dispatching control signal to respectively drive the remote control switch of the air conditioner and the remote control switch of the cooling fan coil water valve to perform actions;

第三远程集中控制器接收综合调度控制装置所发出的调度控制信号，并用该调度控制信号控制燃煤纯凝汽式火电机组的燃煤纯凝汽式火电机组控制执行装置动作。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.

综合调度控制装置分别用于：计算得到燃煤抽汽凝汽式热电联产机组在每个时刻的供暖出力热水流量和发电出力电量的调度控制信号；计算得到燃煤纯凝汽式火电机组在每个时刻的发电出力电量的调度控制信号；计算得到终端用户处的空调器在每个时刻的制冷电力消耗量的调度控制信号；计算得到终端用户处在每个时刻的制冷风机盘管消耗制冷冷水数量的调度控制信号；The comprehensive scheduling control device is used to: calculate the scheduling control signal of the heating output hot water flow and power generation output of the coal-fired steam extraction and condensing cogeneration unit at each moment; calculate the coal-fired pure condensing steam thermal power unit The scheduling control signal of the power generation output at each moment; the scheduling control signal of the cooling power consumption of the air conditioner at the end user at each moment is calculated; the cooling fan coil consumption of the end user at each moment is calculated Scheduling control signal for cooling water quantity;

所述制冷风机盘管流水阀门遥控开关，通过第二远程集中控制器以遥控方式与所述综合调度控制装置耦合；The remote control switch of the cooling fan coil flow valve is remotely coupled with the comprehensive dispatching control device through the second remote centralized controller;

空调器遥控开关，通过第二远程集中控制器以遥控方式与所述综合调度控制装置耦合；The 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;

燃煤抽汽凝汽式热电联产机组控制执行装置，通过第一远程集中控制器以遥控方式与所述综合调度控制装置耦合；所述燃煤抽汽凝汽式热电联产机组控制执行装置根据获得的调度控制信号，控制与其连接的燃煤进料阀门、锅炉蒸汽进汽阀门、采暖蒸汽抽汽阀门及发电蒸汽流量阀门动作。The control execution device of the coal-fired steam extraction and condensing type cogeneration unit is coupled with the comprehensive scheduling control device in a remote manner through the first remote centralized controller; the control execution device of the coal-fired steam extraction and condensing type cogeneration unit According to the obtained scheduling control signal, control the action of the coal-fired feed valve, boiler steam inlet valve, heating steam extraction valve and power generation steam flow valve connected to it.

所述综合调度控制装置包括：接收用户非空调制冷耗电数据、用户冷水消耗数据、用户管道距离信息、燃煤抽汽凝汽式热电联产机组的供暖出力热水流量、燃煤抽汽凝汽式热电联产机组的发电出力电量和燃煤纯凝汽式火电机组的发电出力电量的第一数据接收单元；将接收到的所有数据进行解码的数据解码器单元；对解码后的所有数据进行存储的数据存储器单元；生成调度控制信号的调度控制信号计算单元；将所述调度控制信号进行编码的信号编码器；及将编码后的调度控制信号传递给第一远程集中控制器、第二远程集中控制器、第三远程集中控制器的发送单元。The comprehensive scheduling control device includes: receiving user non-air-conditioning refrigeration power consumption data, user cold water consumption data, user pipeline distance information, heating output hot water flow rate of coal-fired steam extraction and condensing type cogeneration units, coal-fired steam extraction and condensing The first data receiving unit for the power generation output of the steam-type cogeneration unit and the power generation output of the coal-fired pure condensing steam thermal power unit; the data decoder unit for decoding all the received data; for all the decoded data A data storage unit for storing; a scheduling control signal calculation unit for generating a scheduling control signal; a signal encoder for encoding the scheduling control signal; and transmitting the encoded scheduling control signal to the first remote centralized controller, the second The sending unit of the remote centralized controller and the third remote centralized controller.

所述燃煤热电联产机组控制执行装置包括调度控制信号收发编码存储器、驱动电路及机械齿轮控制装置，所述调度控制信号经调度控制信号收发编码存储器解码以后生成燃煤热电联产机组调度控制指令，经过驱动电路输出的电力拖动信号触发机械齿轮控制装置，机械齿轮控制装置再控制燃煤热电联产机组的燃煤进料阀门动作、采暖蒸汽抽汽阀门动作及发电蒸汽流量阀门动作。The control execution device of the coal-fired cogeneration unit includes a scheduling control signal sending and receiving code memory, a drive circuit and a mechanical gear control device. The scheduling control signal is decoded by the scheduling control signal sending and receiving code memory to generate a coal-fired cogeneration 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 then controls the action of the coal-fired feed valve of the coal-fired cogeneration unit, the action of the heating steam extraction valve and the action of the power generation steam flow valve.

所述燃煤纯凝汽式火电机组控制执行装置包括调度控制信号收发编码存储器、驱动电路及机械齿轮控制装置，所述调度控制信号经调度控制信号收发编码存储器解码以后生成燃煤纯凝汽式火电机组调度控制指令，经过驱动电路输出的电力拖动信号触发机械齿轮控制装置，机械齿轮控制装置再控制燃煤纯凝汽式火电机组的燃煤进料阀门动作及发电蒸汽流量阀门动作。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.

综合调度控制装置通过电力光纤与云计算计算服务系统连接，并驱动云计算计算服务系统计算，以获得调度控制信号；综合调度控制装置通过电力光纤接收云计算计算服务系统计算获得的调度控制信号，然后经由电力电缆或无线传输方式发布该调度控制信号给第一远程集中控制器、第二远程集中控制器、第三远程集中控制器。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.

所述第二远程集中控制器包括非制冷电表脉冲计数器、制冷冷水流量脉冲计数器、脉冲信号编码转换器、计量信号放大发射器，及相互连接的控制信号接收解码器和控制信号遥控发射器；The second remote centralized controller includes a non-refrigerated electric meter pulse counter, a refrigerated cold water flow pulse counter, a pulse signal code converter, a measurement signal amplification transmitter, and an interconnected control signal receiving decoder and a control signal remote control transmitter;

非制冷电表脉冲计数器连接用户非制冷电表，用于检测用户非制冷耗电数据，用户非制冷耗电数据经过脉冲信号编码转换器及计量信号放大发射器处理后传送至综合调度控制装置；The pulse counter of the unrefrigerated electric meter is connected to the non-refrigerated electric meter of the user to detect the non-refrigerated power consumption data of the user. The non-refrigerated electric power consumption data of the user is processed by the pulse signal code converter and the metering signal amplifier transmitter and then sent to the comprehensive dispatching control device;

制冷冷水流量脉冲计数器连接制冷风机盘管冷水消耗计量表，用于检测制冷风机盘管冷水消耗计量表的冷水流量数据，制冷冷水流量脉冲计数器检测得到的冷水流量数据经过脉冲信号编码转换器及计量信号放大发射器处理后和制冷风机盘管与燃煤抽汽凝汽式热电联产机组之间的管道距离信息传送至综合调度控制装置；The refrigeration cold water flow pulse counter is connected to the refrigeration fan coil cold water consumption meter, which is used to detect the cold water flow data of the refrigeration fan coil cold water consumption meter. The cold water flow data detected by the refrigeration cold water flow pulse counter is passed through the pulse signal code converter and metered After processing by the signal amplifying transmitter, the pipe distance information between the refrigeration fan coil unit and the coal-fired steam extraction and condensing cogeneration unit is transmitted to the comprehensive dispatching control device;

控制信号接收解码器，接收综合调度控制装置发出的调度控制信息并进行解码，然后通过控制信号遥控发射器将控制信号发送给空调器遥控开关、制冷风机盘管流水阀门遥控开关执行动作。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 air conditioner and the remote control switch of the cooling fan coil water valve through the control signal remote transmitter to perform actions.

一种抽凝式热电联产与纯凝汽火电联合调度系统的调度方法包括以下步骤：A dispatching method for a joint dispatching system of extraction condensing cogeneration and pure condensing thermal power includes the following steps:

本发明热电联合调度系统的调度方法包括以下步骤：The dispatching method of the combined heat and power dispatching system of the present invention comprises the following steps:

1)、测量：1), measurement:

1.1)、测量供给侧：1.1), measuring the supply side:

第一远程集中控制器采集0～T×ΔT时间段燃煤抽汽凝汽式热电联产机组的发电出力P_CHP(t)和热出力H_CHP(t)；采样周期为ΔT；T为采集的次数，T为自然数；The first remote centralized controller collects the power generation output P _CHP (t) and heat output H _CHP (t) of the coal-fired steam extraction and condensing cogeneration unit in the time period of 0～T×ΔT; the sampling period is ΔT; times, T is a natural number;

第三远程集中控制器采集0～T×ΔT时间段燃煤纯凝汽式火电机组的发电出力电量P_CON(t)；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)、测量用户侧：i＝0～N，N为用户个数；每个用户均具有空调器和制冷风机盘管；1.2), measure the user side: i=0～N, N is the number of users; each user has an air conditioner and a cooling fan coil;

1.2.1)、第二远程集中控制器采集N个用户距热源燃煤抽汽凝汽式热电联产机组(A)的管道距离S_i；1.2.1), the second remote centralized controller collects the pipeline distance S _i of N users from the heat source coal-fired extraction and condensing type cogeneration unit (A);

1.2.2)、第二远程集中控制器采集0～T×ΔT时间段N个用户非制冷耗电量P_i(t)，采样频率为ΔT；1.2.2), the second remote centralized controller collects the non-cooling power consumption P _i (t) of N users in the period of 0～T×ΔT, and the sampling frequency is ΔT;

1.2.3)、第二远程集中控制器采集0～T×ΔT时间段N个用户的制冷风机盘管的耗冷量H_i(t)，采样频率为ΔT；1.2.3), the second remote centralized controller collects the cooling consumption H _i (t) of the refrigeration fan coils of N users in the time period of 0～T×ΔT, and the sampling frequency is ΔT;

1.2.4)、第二远程集中控制器采集N个用户的空调器装机容量

1.2.4), the second remote centralized controller collects the air conditioner installed capacity of N users

2)、计算2), calculation

2.1)、综合调度控制装置(115)计算所有用户各时段总的用电量：2.1), the integrated scheduling control device (115) calculates the total power consumption of all users in each period:

${P P}_{sum sum} ((t t)) = = {Σ Σ}_{i i = = 00}^{N N} {P P}_{i i} ((t t));;$

2.2)、根据步骤2.1)中计算出的各时段总用电量P_sum(t)，利用统计分析方法，预测未来一段时间段的电力负荷P_load(t)；根据步骤1)采集的燃煤抽汽凝汽式热电联产机组(A)的热出力H_CHP(t)，预测未来一段时间的燃煤抽汽凝汽式热电联产机组(A)的热出力H_CHP(t)；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; The heat output H _CHP (t) of the steam extraction and condensing cogeneration unit (A), predicting the heat output H _CHP (t) of the coal-fired extraction and condensing cogeneration unit (A) in the future;

2.3)、用户分组：计算每个用户到热源的等效距离

做取整运算，使

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为冷水在管道中的流速；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 cold water in the pipeline;

2.4)、对步骤2.3)中分得的L个组，分别求出各组所有用户的总制冷负荷H_load(l)和空调器容量P_EHP(l)；2.4), to step 2.3) in the L group that divides, obtain the total cooling load H _load (l) and air conditioner capacity P _EHP (l) of all users of each group respectively;

H_load(l)＝∑H_i(t，l)；H_i(t，l)为第1组用户i在t时刻的制冷负荷；H _load (l)=∑H _i (t, l); H _i (t, l) is the cooling load of user i in the first group at time t;

为第1组用户i的空调器容量；

is the air conditioner capacity of user i in the first group;

3)、控制计算3), control calculation

3.1)、目标函数：3.1), objective function:

目标函数总能耗f为：The total energy consumption f of the objective function is:

$f f = = {f f}_{CHP CHP} + + {f f}_{CHP CHP}^{ramp ramp} + + {f f}_{CON CON} + + {f f}_{CON CON}^{ramp ramp} - - - - - - ((11))$

f_CHP为热电联产功率能耗，单位为MWH；

为热电联产爬坡能耗，单位为MWH；f_CON为纯凝汽火电机组功率能耗，单位为MWH；

为纯凝汽火电机组爬坡能耗，单位为MWH；f _CHP is power consumption of cogeneration, unit is MWH;

is the climbing energy consumption of cogeneration, the unit is MWH; f _CON is the power consumption of pure condensing steam thermal power unit, the unit is MWH;

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

其中：in:

a)、热电机组功率能耗：a), power consumption of thermoelectric unit:

${f f}_{CHP CHP} = = {Σ Σ}_{t t = = ((T T + + 11))}^{22 T T} ((k k \cdot \cdot {h h}_{CHP CHP} ((t t)) + + m m \cdot \cdot {p p}_{CHP CHP} ((t t)) + + c c)) \cdot \cdot ΔT ΔT - - - - - - ((22))$

h_CHP(t)为调节后热电联产供暖热出力，单位为MW；p_CHP(t)为调节后热电联产发电出力，单位为MW；k、m、c为燃煤抽汽凝汽式热电联产机组的煤耗系数；h _CHP (t) is the adjusted heat output of combined heat and power generation, in MW; p _CHP (t) is the adjusted power generation output of heat and power cogeneration, in MW; k, m, and c are coal-fired steam extraction and condensation Coal consumption coefficient of combined heat and power units;

b)、热电联产机组爬坡能耗：b) Energy consumption of cogeneration units climbing slopes:

${f f}_{CHP CHP}^{ramp ramp} = = {Σ Σ}_{t t = = ((T T + + 11))}^{22 T T} {d d}_{CHP CHP} \cdot &Center Dot; (({p p}_{CHP CHP} ((t t)) - - {p p}_{CHP CHP} ((t t - - 11)))) - - - - - - ((33))$

d_CHP为燃煤抽汽凝汽式热电联产机组的爬坡煤耗系数；d _CHP is the climbing coal consumption coefficient of the coal-fired extraction and condensing cogeneration unit;

c)、火电机组功率能耗：c), thermal power unit power consumption:

${b b}_{CON CON} ((t t)) = = \frac{{p p}_{CON CON} ((t t))}{0.003313105 0.003313105 \cdot \cdot {p p}_{CON CON} ((t t)) - - 0.082266676 0.082266676} - - - - - - ((44))$

${f f}_{CON CON} = = {Σ Σ}_{t t = = ((T T + + 11))}^{22 T T} 29.271 29.271 \cdot \cdot {p p}_{CON CON} ((t t)) \cdot \cdot {b b}_{CON CON} ((t t)) \cdot \cdot ΔT ΔT - - - - - - ((55))$

b_CON(t)为调节后纯凝汽火电机组发电煤耗量，单位为g/kWh；p_CON(t)为调节后纯凝汽火电机组发电出力，单位为MW；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;

d)、火电机组爬坡能耗：d), thermal power unit climbing energy consumption:

${f f}_{CON CON}^{ramp ramp} = = {Σ Σ}_{t t = = ((T T + + 11))}^{22 T T} {d d}_{CON CON} \cdot &Center Dot; (({p p}_{CON CON} ((t t)) - - {p p}_{CON CON} ((t t - - 11)))) - - - - - - ((66))$

d_CON为火电机组的爬坡煤耗系数；d _CON is the climbing coal consumption coefficient of the thermal power unit;

3.2)、约束方程3.2), constraint equation

3.2.1)、电力负荷平衡3.2.1), power load balance

P_load(t)+p_EHPs(t)＝p_CON(t)+p_CHP(t) (7)P _load (t) + p _EHPs (t) = p _CON (t) + p _CHP (t) (7)

p_EHPs(t)为调节后t时刻所有用户空调器制冷耗电功率之和，单位为MW；p _EHPs (t) is the sum of cooling power consumption of all user air conditioners at time t after adjustment, the unit is MW;

3.2.2)、冷负荷平衡方程3.2.2), cooling load balance equation

Δh(t)＝|H_CHP(t)-h_CHP(t)| (8)Δh(t)＝|H _CHP (t)-h _CHP (t)| (8)

$Δh (t) = Σ_{l = 0}^{L} h_{EHP} (t + l, l)$ (T≤t+l≤2T) (9) $Δh (t) = Σ_{l = 0}^{L} h_{EHP} (t + l, l)$ (T≤t+l≤2T) (9)

其中：h_EHP(t+l，l)为t+l时刻第l组用户空调器的制冷功率之和，单位为MW；h_EHP(t，l)为t时刻第l组用户空调器的制冷功率之和，单位为MW；H_CHP(t)为步骤2.2)预测的燃煤抽汽凝汽式热电联产机组t时段的热出力；Among them: _hEHP (t+l, l) is the sum of cooling power of user air conditioners in group l at time t+l, and the unit is MW; _hEHP (t, l) is the cooling power of user air conditioners in group l at time t The sum of power, the unit is MW; H _CHP (t) is the heat output of the coal-fired steam extraction and condensing cogeneration unit predicted in step 2.2) during the period t;

3.2.3)、抽凝式热电机组约束：3.2.3), Constraints of pumping condensing thermoelectric unit:

发电出力下限：Lower limit of power output:

${p p}_{CHP CHP}^{min min} ((t t)) = = {l l}_{CHP CHP}^{min min} \cdot &Center Dot; {h h}_{CHP CHP} ((t t)) + + {n no}_{CHP CHP}^{min min} - - - - - - ((1010))$

发电出力上限：Power output upper limit:

${p p}_{CHP CHP}^{max max} ((t t)) = = {l l}_{CHP CHP}^{max max} \cdot \cdot {h h}_{CHP CHP} ((t t)) + + {n no}_{CHP CHP}^{max max} - - - - - - ((1111))$

发电出力限制：Power generation output limit:

${p p}_{CHP CHP}^{min min} ((t t)) < < {p p}_{CHP CHP} ((t t)) \leq \leq {p p}_{CHP CHP}^{max max} ((t t)) - - - - - - ((1212))$

供暖出力约束：Heating output constraints:

$55 \leq \leq {h h}_{CHP CHP} ((t t)) \leq \leq {h h}_{CHP CHP}^{max max} ((t t)) - - - - - - ((1313))$

其中

为热电机组工况曲线参数；

为t时段燃煤抽汽凝汽式热电联产机组的电出力的下限；

为t时段燃煤抽汽凝汽式热电联产机组的电出力的上限；

为t时段燃煤抽汽凝汽式热电联产机组的供暖出力上限；in

is the parameter of the working condition curve of the thermoelectric unit;

is the lower limit of the electric output of the coal-fired steam extraction and condensing cogeneration unit during the t period;

is the upper limit of the electric output of the coal-fired extraction and condensing cogeneration unit during the t period;

is the upper limit of the heating output of the coal-fired extraction and condensing cogeneration unit during the t period;

3.2.4)、纯凝式火电机组约束：3.2.4), Constraints of pure condensing thermal power units:

${P P}_{CON CON}^{min min} < < {p p}_{CON CON} ((t t)) \leq \leq {P P}_{CON CON}^{max max} - - - - - - ((1414))$

其中

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)、用户侧空调器约束：3.2.5), user-side air conditioner constraints:

热电比约束：Thermoelectric ratio constraints:

h_EHP(t，l)＝COP_EHP·p_EHP(t，l) (15)h _EHP (t, l) = COP _EHP p _EHP (t, l) (15)

空调器出力上限：Air conditioner output upper limit:

0≤p_EHP(t，l)≤min(P_EHP(l)，H_load(l)/COP_EHP) (16)0≤p _EHP (t, l)≤min(P _EHP (l), H _load (l)/COP _EHP ) (16)

其中，P_EHP(l)为第1组用户的空调器容量之和，单位为MW；H_load(l)为第1组用户的制冷负荷，单位为MW；COP_EHP为空调器性能系数；p_EHP(t，l)为t时段第1组用户的空调器耗电量之和，单位为MW；Among them, P _EHP (l) is the sum of the capacity of the air conditioners of the first group of users, the unit is MW; H _load (l) is the cooling load of the first group of users, the unit is MW; COP _EHP is the coefficient of performance of the air conditioner; p _EHP (t, l) is the sum of the air conditioner power consumption of the first group of users in the period t, and the unit is MW;

各时段所有用户组的空调器耗电量之和：The sum of the air conditioner power consumption of all user groups in each period:

${p p}_{EHPs EHPs} ((t t)) = = {Σ Σ}_{l l = = 00}^{L L} {p p}_{EHP EHP} ((t t,, l l)) - - - - - - ((1717))$

将步骤1)中直接采集变量P_CHP(t)，P_CON(t)；步骤2)中计算变量P_load(t)，H_CHP(t)，H_load(l)，P_EHP(l)代入公式1～17中并进行联合求解，在目标函数总能耗f为最小值时，求得优化后所得执行变量热电联产发电出力p_CHP(t)、热电联产热出力h_CHP(t)、用户不同时刻空调器耗电量p_EHP(t，l)和制冷功率h_EHP(t，l)、火电机组发电出力p_CON(t)；Directly collect variables P _CHP (t), P _CON (t) in step 1); calculate variables P _load (t), H _CHP (t), H _load (l), P _EHP (l) in step 2) into Formulas 1 to 17 are jointly solved, and when the total energy consumption f of the objective function is the minimum value, the optimized execution variables cogeneration power generation output p _CHP (t) and cogeneration heat output h _CHP (t) are obtained , Air conditioner power consumption p _EHP (t, l) and cooling power h _EHP (t, l) at different times of the user, thermal power generation output p _CON (t);

4)、发送控制信号到供给和用户执行动作：4), Send control signals to suppliers and users to perform actions:

综合调度控制装置根据步骤3)的优化后所得执行变量，将变量信号发送至供给侧的第一远程集中控制器、第三远程集中控制器和用户的第二远程集中控制器，具体执行如下动作：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、热电联产发电出力p_CHP(t)和热出力h_CHP(t)信号，控制热电联产在未来调节时间内各时段的动作；B、用户不同时刻空调器耗电量p_EHP(t，l)和制冷功率h_EHP(t，l)，控制用户侧不同距离用户使用空调器制冷量，以及关闭风机盘管量；C、火电机组发电出力p_CON(t)信号，控制火电机组在未来调节时间内各时段的动作。A. Combined heat and power generation output p _CHP (t) and heat output h _CHP (t) signals to control the action of cogeneration in each period of future adjustment time; B. Air conditioner power consumption p _EHP (t , l) and refrigeration power h _EHP (t, l), to control the cooling capacity of the air conditioner used by the user at different distances from the user side, and to close the fan coil; C, thermal power generation output p _CON (t) signal, control the thermal power unit in The actions of each period in the future adjustment time.

现对于现有技术，本发明的有益效果在于：本发明采用热电联产机组与纯凝气式火电机组联合产出发电出力提供电能给终端用户；热电联产机组产出的热水转换成冷水后提供给终端用户的风机盘管；本发明通过采集用户至热源的管道距离，利用该管道距离合理将原本独立运行的凝气式火电机组和热电联产机组进行联合调度，使得涉及电力负荷非高峰时段节能调度和低谷时段节能调峰时，根据终端用户的负荷能耗的需求调节热电联产机组的燃料消耗量、发电出力和采暖供热出力、纯凝气式火电机组的燃料消耗量及发电出力、终端用户的空调器制冷的电力消耗量、及终端用户的风机盘管的制冷功率，实现电网与热网的综合节能调度与调峰；并有效的减少热电联产机组与纯凝气式火电机组的总能源消耗，避免浪费燃料资源，同时使得调度更加的及时、准确。Now for the prior art, the beneficial effect of the present invention is that: the present invention adopts the cogeneration unit and the pure condensing thermal power unit to jointly produce power generation output and provide electric energy to end users; the hot water produced by the cogeneration unit is converted into cold water Afterwards, the fan coil unit is provided to the end user; the invention collects the pipeline distance from the user to the heat source, and utilizes the pipeline distance to reasonably jointly dispatch the condensing thermal power unit and the combined heat and power unit that originally operated independently, so that the power load involved is not Energy-saving scheduling during peak hours and energy-saving peak shaving during off-peak hours, adjust fuel consumption, power generation output and heating output of cogeneration units, fuel consumption of pure condensing thermal power units and The output of power generation, the power consumption of the air conditioner of the end user, and the cooling power of the fan coil of the end user realize the comprehensive energy-saving scheduling and peak regulation of the power grid and the heating network; and effectively reduce the cogeneration unit and pure condensate The total energy consumption of thermal power units can avoid wasting fuel resources, and at the same time make scheduling more timely and accurate.

附图说明 Description of drawings

图1为现有技术中的一种热电联产机组采暖供热出力和发电出力的运行工况图；Fig. 1 is a working condition diagram of heating output and power generation output of a cogeneration unit in the prior art;

图2为原热电火电调度计划图；Figure 2 is a diagram of the original thermal power dispatching plan;

图3为本发明热电联合调度系统的连接示意图；Fig. 3 is a connection schematic diagram of the combined heat and power dispatching system of the present invention;

图4为第二远程集中控制器的结构示意图；Fig. 4 is the structural representation of the second remote centralized controller;

图5为热电联产机组执行装置的结构示意图；Fig. 5 is a structural schematic diagram of the executive device of the combined heat and power unit;

图6为纯凝气式火电机组执行装置的结构示意图；Fig. 6 is a structural schematic diagram of the executive device of the pure condensing gas thermal power unit;

图7为综合调度控制装置的结构示意图；Fig. 7 is a structural schematic diagram of an integrated dispatching control device;

图8为综合调度控制装置与云计算计算服务系统构成的控制信号生成单元的结构示意图；8 is a schematic structural diagram of a control signal generating unit composed of an integrated dispatching control device and a cloud computing service system;

图9为本发明调度方法的流程图；Fig. 9 is a flowchart of the scheduling method of the present invention;

图10使用本发明调度方法后的热电火电调度图；Fig. 10 uses the thermoelectric thermal power dispatch diagram after dispatching method of the present invention;

图11为使用本发明调度方法后不同性能空调器的节能效率图。Fig. 11 is a graph of energy saving efficiency of air conditioners with different performances after using the scheduling method of the present invention.

具体实施方式Detailed ways

下面结合附图说明本发明的具体实施方式。The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings.

请参照图3所示，本发明一种抽凝式热电联产与纯凝汽火电联合调度系统包括：Please refer to Fig. 3, a joint dispatching system of extraction condensing cogeneration and pure condensing steam thermal power of the present invention includes:

用于产出电力和采暖热水的燃煤抽汽凝汽式热电联产机组A；Coal-fired steam extraction and condensing cogeneration unit A for generating electricity and heating hot water;

用于产出电能的燃煤纯凝汽式火电机组B；Coal-fired pure condensing steam thermal power unit B used to generate electric energy;

集中式热吸收式制冷机200，连接燃煤抽汽凝汽式热电联产机组A的热水出口，并将热水转化为冷水，通入供热管道114；本发明中集中式热吸收式制冷机200的转换效率为0.7-1.3，可以进行调节，本发明中优选1.0。The centralized heat absorption refrigerator 200 is connected to the hot water outlet of the coal-fired steam extraction and condensing cogeneration unit A, and the hot water is converted into cold water and passed into the heating pipeline 114; the centralized heat absorption refrigerator in the present invention The conversion efficiency of the refrigerator 200 is 0.7-1.3, which can be adjusted, and is preferably 1.0 in the present invention.

通过电力电缆113与所述燃煤抽汽凝汽式热电联产机组A和燃煤纯凝汽式火电机组B并联的空调器108，所述空调器108由所述燃煤抽汽凝汽式热电联产机组A和燃煤纯凝汽式火电机组B产生的电能驱动而产生制冷冷风；The air conditioner 108 connected in parallel with the coal-fired steam extraction and condensing type cogeneration unit A and the coal-fired pure condensing type thermal power unit B through the power cable 113, the air conditioner 108 is powered by the coal-fired extraction and condensing type Cogeneration unit A and coal-fired pure condensing steam thermal power unit B are driven by electric energy to generate cooling air;

空调器专用电能表109，用于检测所述空调器108采暖的耗电数据；An electric energy meter 109 dedicated to the air conditioner, used to detect the power consumption data of the air conditioner 108 for heating;

控制空调器108的空调器遥控开关117；Control the air conditioner remote control switch 117 of the air conditioner 108;

采集用户非制冷用电的电表(未图示)；The electric meter (not shown) for collecting non-cooling electricity consumption of users;

通过供热管道114与集中式热吸收式制冷机200相连接的制冷风机盘管110，集中式热吸收式制冷机200生产的热水流入制冷风机盘管110中，经制冷风机盘管110中的鼓风机吹出冷风，产生制冷冷风满足用户需求；The cooling fan coil 110 connected to the centralized heat absorption refrigerator 200 through the heating pipe 114, the hot water produced by the centralized heat absorption refrigerator 200 flows into the cooling fan coil 110, and passes through the cooling fan coil 110. The blower blows out cold air to generate cooling air to meet user needs;

制冷风机盘管冷水消耗计量表111，用于检测所述制冷风机盘管110冷水消耗的数据；Refrigeration fan coil cold water consumption meter 111, used to detect the data of cold water consumption of the refrigeration fan coil 110;

控制制冷风机盘管110的制冷风机盘管流水阀门遥控开关116；Control the remote control switch 116 of the cooling fan coil flow valve of the cooling fan coil unit 110;

第一远程集中控制器1121，采集燃煤抽汽凝汽式热电联产机组A的燃料投入量，蒸汽进气量，供暖出力热水流量和发电出力电量；并将采集的燃煤抽汽凝汽式热电联产机组A的燃料投入量，蒸汽进气量，供暖出力热水流量，发电出力电量传送给综合调度控制装置115；The first remote centralized controller 1121 collects the fuel input amount of the coal-fired steam extraction and condensing type cogeneration unit A, the steam intake amount, the heating output hot water flow rate and the power generation output quantity; and collects the collected coal-fired extraction and condensing The fuel input amount, steam intake amount, heating output, hot water flow rate, and power generation output of the steam-type cogeneration unit A are transmitted to the comprehensive dispatching control device 115;

第二远程集中控制器1122，采集空调器专用电能表109检测的耗电数据；记载制冷风机盘管110与燃煤抽汽凝汽式热电联产机组A之间的管道距离信息；采集制冷风机盘管冷水消耗计量表111检测的冷水消耗数据；然后再将空调器的耗电数据、制冷风机盘管110的管道距离信息、冷水消耗数据传送给综合调度控制装置115；The second remote centralized controller 1122 collects the power consumption data detected by the special electric energy meter 109 of the air conditioner; records the pipeline distance information between the cooling fan coil unit 110 and the coal-fired steam extraction and condensing type combined heat and power unit A; collects the cooling fan The cold water consumption data detected by the coil cold water consumption meter 111; and then the power consumption data of the air conditioner, the pipe distance information of the cooling fan coil unit 110, and the cold water consumption data are transmitted to the comprehensive dispatching control device 115;

第三远程集中控制器1123，采集燃煤纯凝汽式火电机组B的燃料投入量，蒸汽进气量和发电出力电量；并将采集的燃煤纯凝汽式火电机组B的燃料投入量，蒸汽进气量和发电出力电量传送给综合调度控制装置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;

综合调度控制装置115，由燃煤抽汽凝汽式热电联产机组A的供暖出力热水流量、燃煤抽汽凝汽式热电联产机组A的发电出力电量、燃煤纯凝汽式火电机组B的发电出力电量、用户的制冷风机盘管110的管道距离信息、用户的非制冷用电数据和用户的冷水消耗数据，生成调度控制信号；The comprehensive scheduling control device 115 is composed of the heating output hot water flow rate of the coal-fired steam extraction and condensing cogeneration unit A, the power generation output of the coal-fired steam extraction and condensing cogeneration unit A, and the coal-fired pure condensing thermal power unit A. Generating power output of unit B, pipe distance information of the user's cooling fan coil unit 110, user's non-refrigeration power consumption data, and user's cold water consumption data to generate a dispatch control signal;

第一远程集中控制器1121接收综合调度控制装置115所发出的调度控制信号，并用该调度控制信号控制燃煤抽汽凝汽式热电联产机组A的燃煤热电联产机组控制执行装置118动作；The first remote centralized controller 1121 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 heat and power cogeneration unit control execution device 118 of the coal-fired steam extraction and condensing type cogeneration unit A ;

第二远程集中控制器1122接收综合调度控制装置115所发出的调度控制信号，并用该调度控制信号分别驱动空调器遥控开关117、制冷风机盘管流水阀门遥控开关116执行开关机动作；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 and the remote control switch 116 of the refrigerating fan coil flow valve to perform the on/off action;

第三远程集中控制器1123接收综合调度控制装置115所发出的调度控制信号，并用该调度控制信号控制燃煤纯凝汽式火电机组B的燃煤纯凝汽式火电机组控制执行装置119动作。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.

请参照图3所示，符合本发明的一个具体实施例中，燃煤抽汽凝汽式热电联产机组A，用于产出电力和采暖热水。该燃煤抽汽凝汽式热电联产机组A包括锅炉104、透平105、热网加热器106、及交流发电机107。其中锅炉104燃烧燃料获得采暖热能加热蒸汽，通过蒸汽管道将饱和热蒸汽送至透平105获得机械能，该机械能驱动交流发电机107发出电能，热电联产机组发电余热被发送至热网加热器106生产采暖用热水。其中，热机采用水蒸汽朗肯循环，或以水蒸气朗肯循环为底层循环的布雷顿-郎肯热力联合循环，其供水温度可在65～80℃的范围内调节。交流发电机107发出的电能通过输电线路113输送给终端用户的空调器108和其他电器(例如照明用电器、电源插座及家用电器等)。终端用户处的空调器108在电能的驱动下可为使用空调器108的终端用户提供采暖供热。热网加热器106生产的采暖用热水通过供热管道114传送给终端用户的风机盘管110提供采暖供热。燃煤抽汽凝汽式热电联产机组A设有输入蒸汽量的阀门①、采暖供热出力抽汽量阀门②及发电蒸汽量阀门③。Please refer to FIG. 3 , in a specific embodiment of the present invention, a coal-fired steam extraction and condensing cogeneration unit A is used to generate electricity and hot water for heating. The coal-fired steam extraction and condensing cogeneration unit A includes a boiler 104 , a turbine 105 , a heat network heater 106 , and an alternator 107 . The boiler 104 burns fuel to obtain heating heat to heat the steam, and sends the saturated hot steam to the turbine 105 to obtain mechanical energy through the steam pipeline, which drives the alternator 107 to generate electric energy, and the waste heat generated by the combined heat and power unit is sent to the heating network heater 106 Production of hot water for heating. Among them, the heat engine adopts the steam Rankine cycle, or the Brayton-Rankine thermodynamic combined cycle with the steam Rankine cycle as the bottom cycle, and its water supply temperature can be adjusted within the range of 65-80°C. The electric energy generated by the alternator 107 is transmitted to the air conditioner 108 and other electrical appliances (such as lighting appliances, power sockets and household appliances, etc.) of end users through the transmission line 113 . Driven by electric energy, the air conditioner 108 at the end user can provide heating and heating for the end user using the air conditioner 108 . The hot water for heating produced by the heating network heater 106 is sent to the fan coil unit 110 of the end user through the heating pipeline 114 to provide heating. Coal-fired steam extraction and condensing cogeneration unit A is equipped with steam input valve ①, heating output steam extraction valve ② and power generation steam valve ③.

燃煤纯凝汽式火电机组B用于产出电能。燃煤纯凝汽式火电机组B包括锅炉101、透平102及交流发电机103。锅炉101燃烧燃料获得采暖热能通过管道送至透平102获得机械能，该机械能驱动交流发电机103发出电能。交流发电机103发出的电能通过输电线路113输送给终端用户的空调器108和其他电器。其中终端用户处的空调器108可在电能的驱动下为空调用户提供采暖供热。燃煤纯凝汽式火电机组B还包括控制输入蒸汽量的阀门④。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 108 and other electrical appliances of the end users through the transmission line 113 . The air conditioner 108 at the end user can provide heating and heating for the air conditioner 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.

终端用户处的空调器108通过输电线路113与燃煤抽汽凝汽式热电联产机组A与燃煤纯凝汽式火电机组B并联，可由燃煤抽汽凝汽式热电联产机组A和燃煤纯凝汽式火电机组B产生的电能联合驱动空调器108产生制冷冷气，进而为空调用户制冷。空调器108还包括空调器开关⑤。The air conditioner 108 at the end user is connected in parallel with the coal-fired extraction and condensing type cogeneration unit A and the coal-fired pure condensing thermal power unit B through the power transmission line 113, and the coal-fired extraction and condensing type cogeneration unit A and The electric energy generated by the coal-fired pure condensing steam thermal power unit B jointly drives the air conditioner 108 to generate refrigerated air, and then cools the air conditioner users. The air conditioner 108 also includes an air conditioner switch ⑤.

请参照图3，电能表109与空调器108耦合；空调器遥控开关117连接空调器108，用于控制空调器108的开关。电能表109通过导线与空调器108单独连接，用于检测所述空调器108制冷的耗电数据。制冷风机盘管110，通过供热管道114与集中式热吸收式制冷机200相连接，并由集中式热吸收式制冷机200产出的冷水产生制冷冷风。冷水消耗计量表111，与风机盘管110相耦合，用于检测风机盘管110的制冷耗冷数据。制冷风机盘管110设有开关阀门⑥。第二远程集中控制器1122，采集空调器专用电能表109检测的耗电数据并传送给综合调度控制装置115；采集制冷风机盘管冷水消耗计量表111检测的热水消耗数据，并记载该制冷风机盘管110与燃煤抽汽凝汽式热电联产机组A之间管道距离信息，然后再将冷水消耗数据和管道距离信息传送给综合调度控制装置115。Please refer to FIG. 3 , the electric energy meter 109 is coupled with the air conditioner 108 ; The electric energy meter 109 is separately connected with the air conditioner 108 through wires, and is used for detecting the cooling power consumption data of the air conditioner 108 . The cooling fan coil unit 110 is connected to the centralized heat absorption refrigerator 200 through the heating pipe 114 , and generates cooling air from the cold water produced by the centralized heat absorption refrigerator 200 . The cold water consumption meter 111 is coupled with the fan coil unit 110 and is used to detect cooling cooling consumption data of the fan coil unit 110 . The refrigeration fan coil unit 110 is provided with an on-off valve ⑥. The second remote centralized controller 1122 collects the power consumption data detected by the special electric energy meter 109 of the air conditioner and transmits it to the comprehensive dispatching control device 115; collects the hot water consumption data detected by the refrigeration fan coil cold water consumption meter 111, and records the cooling data. The pipe distance information between the fan coil unit 110 and the coal-fired steam extraction and condensing cogeneration unit A, and then transmit the cold water consumption data and the pipe distance information to the comprehensive dispatching control device 115 .

请参照图4所示，第二远程集中控制器1122包括空调电表脉冲计数器、非制冷电表脉冲计数器(未图示)、制冷冷水流量脉冲计数器、脉冲信号编码转换器、计量信号放大发射器，控制信号接收解码器和控制信号遥控发射器；空调电表脉冲计数器连接空调器专用电能表109，用于检测空调器专用电能表109检测的耗电数据，空调电表脉冲计数器检测得到的耗电数据脉冲信号编码转换器及计量信号放大发射器处理后传送至综合调度控制装置115；Please refer to shown in Figure 4, the second remote centralized controller 1122 includes an air-conditioning meter pulse counter, a non-refrigerating meter pulse counter (not shown), a refrigeration cold water flow pulse counter, a pulse signal code converter, and a metering signal amplification transmitter. The 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, and is used to detect the power consumption data detected by the special electric energy meter 109 for the air conditioner, and the electric power consumption data pulse signal detected by the air conditioner electric meter pulse counter After being processed by the code converter and metering signal amplifier transmitter, it is sent to the integrated dispatching control device 115;

非制冷电表脉冲计数器连接用户非制冷电表，用于检测用户非制冷耗电数据(即，除空调耗电以外的用户耗电数据)，用户非制冷耗电数据经过脉冲信号编码转换器及计量信号放大发射器处理后传送至综合调度控制装置115；The pulse counter of the non-cooling meter is connected to the non-cooling meter of the user to detect the non-cooling power consumption data of the user (that is, the power consumption data of the user except the power consumption of the air conditioner), and the non-cooling power consumption data of the user passes through the pulse signal code converter and the metering signal After being processed by the amplifying transmitter, it is sent to the integrated dispatching control device 115;

制冷冷水流量脉冲计数器连接制冷风机盘管冷水消耗计量表111，用于检测制冷风机盘管冷水消耗计量表111的冷水流量数据，制冷冷水流量脉冲计数器检测得到的冷水流量数据经过脉冲信号编码转换器及计量信号放大发射器处理后和制冷风机盘管110与燃煤抽汽凝汽式热电联产机组A之间的管道距离信息传送至综合调度控制装置115；The cooling cold water flow pulse counter is connected to the cooling fan coil cold water consumption meter 111 for detecting the cold water flow data of the cooling fan coil cooling water consumption meter 111, and the cold water flow data detected by the cooling cold water flow pulse counter passes through the pulse signal code converter and metering signal amplifying transmitter to transmit the pipeline distance information between the refrigeration fan coil unit 110 and the coal-fired steam extraction and condensing type combined heat and power unit A to the comprehensive dispatching control device 115;

控制信号接收解码器，接收综合调度控制装置115发出的调度控制信息并进行解码，然后通过控制信号遥控发射器将控制信号发送给空调器遥控开关117、制冷风机盘管流水阀门遥控开关116执行动作。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 remote control switch 117 of the air conditioner and the remote control switch 116 of the cooling fan coil water valve through the control signal remote transmitter to perform actions .

第一远程集中控制器1121，采集燃煤抽汽凝汽式热电联产机组A的燃料投入量，蒸汽进气量，供暖出力热水流量和发电出力电量，并将采集的燃煤抽汽凝汽式热电联产机组A的燃料投入量，蒸汽进气量，供暖出力热水流量，发电出力电量传送给综合调度控制装置115。The first remote centralized controller 1121 collects the fuel input amount of the coal-fired steam extraction and condensing type cogeneration unit A, the steam intake amount, the heating output hot water flow rate and the power generation output electricity, and collects the collected coal-fired extraction and condensing The fuel input amount, steam intake amount, heating output, hot water flow rate, and power generation output of the steam-type cogeneration unit A are transmitted to the comprehensive dispatching control device 115 .

第三远程集中控制器1123，采集燃煤纯凝汽式火电机组B的燃料投入量，蒸汽进气量和发电出力电量，并将采集的燃煤纯凝汽式火电机组B的燃料投入量，蒸汽进气量和发电出力电量传送给综合调度控制装置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 .

请参照图5所示，燃煤热电联产机组控制执行装置118包括调度控制信号收发编码存储器302、驱动电路303及机械齿轮控制装置304，所述调度控制信号经调度控制信号收发编码存储器302解码以后生成燃煤热电联产机组调度控制指令，经过驱动电路303输出的电力拖动信号触发机械齿轮控制装置304，机械齿轮控制装置304再控制燃煤抽汽凝汽式热电联产机组A的输入蒸汽量阀门①动作、采暖供热出力抽汽量阀门②动作及发电蒸汽量阀门③动作。从而控制燃煤抽汽凝汽式热电联产机组A的燃料输入、采暖用途抽汽流量及发电用途蒸汽流量。Please refer to FIG. 5 , the control execution device 118 of the coal-fired cogeneration unit includes a scheduling control signal sending and receiving encoding memory 302, a drive circuit 303 and a mechanical gear control device 304, and the scheduling control signal is decoded by the scheduling control signal sending and receiving encoding memory 302. Afterwards, a coal-fired cogeneration unit dispatching control command is generated, and the electrical drag signal output by the drive circuit 303 triggers the mechanical gear control device 304, and the mechanical gear control device 304 then controls the input of the coal-fired steam extraction and condensing type cogeneration unit A The steam volume valve ① operates, the heating and heating output steam extraction valve ② operates, and the power generation steam volume valve ③ operates. Thus, the fuel input of the coal-fired steam extraction and condensing cogeneration unit A, the extraction steam flow for heating and the steam flow for power generation are controlled.

请参照图6，燃煤纯凝汽式火电机组控制执行装置119包括调度控制信号收发编码存储器402、驱动电路403及机械齿轮控制装置404，所述调度控制信号经调度控制信号收发编码存储器402解码以后生成燃煤纯凝汽式火电机组调度控制指令，经过驱动电路403输出的电力拖动信号触发机械齿轮控制装置404，机械齿轮控制装置404再控制燃煤纯凝汽式火电机组B的输入蒸汽量阀门④动作。从而控制燃煤纯凝汽式火电机组B的发电出力。Please refer to Fig. 6, 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.

请参照图7，综合调度控制装置115包括：Please refer to Fig. 7, the comprehensive scheduling control device 115 includes:

接收用户非制冷耗电数据、用户冷水消耗数据、用户管道距离信息、燃煤抽汽凝汽式热电联产机组A的供暖出力热水流量、燃煤抽汽凝汽式热电联产机组A的发电出力电量和燃煤纯凝汽式火电机组B的发电出力电量的第一数据接收单元201；将接收到的所有数据进行解码的数据解码器单元202；对解码后的所有数据进行存储的数据存储器单元203；生成调度控制信号的调度控制信号计算单元204；将所述调度控制信号进行编码的信号编码器205；及将编码后的调度控制信号传递给第一远程集中控制器1121、第二远程集中控制器1122、第三远程集中控制器1123的发送单元206。Receive user non-cooling power consumption data, user cold water consumption data, user pipeline distance information, heating output and hot water flow of coal-fired extraction and condensing cogeneration unit A, and coal-fired extraction and condensing cogeneration unit A The first data receiving unit 201 for the power generation output and the power generation output of the coal-fired pure condensing steam thermal power unit B; the data decoder unit 202 for decoding all the received data; the data for storing all the decoded data The memory unit 203; the scheduling control signal calculation unit 204 that generates the scheduling control 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 The sending unit 206 of the remote centralized controller 1122 and the third remote centralized controller 1123 .

请参照图8，综合调度控制装置115通过电力光纤120与云计算计算服务系统917连接，并驱动云计算计算服务系统917计算，以获得调度控制信号；综合调度控制装置115通过电力光纤120接收云计算计算服务系统917计算获得的调度控制信号，然后经由电力电缆或无线传输方式发布该调度控制信号给第一远程集中控制器、第二远程集中控制器、第三远程集中控制器。Please refer to FIG. 8 , the integrated dispatch control device 115 is connected to 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 dispatch 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.

请参阅图3至图9所示，本发明热电联合调度系统的调度方法包括以下步骤：Please refer to Fig. 3 to Fig. 9, the dispatching method of the combined heat and power dispatching system of the present invention includes the following steps:

1)、测量：1), measurement:

1.1)、测量供给侧：1.1), measuring the supply side:

第一远程集中控制器(1121)采集0～T×ΔT时间段燃煤抽汽凝汽式热电联产机组(A)的发电出力P_CHP(t)和热出力H_CHP(t)；采样周期为ΔT；T为采集的次数，T为自然数；The first remote centralized controller (1121) collects the power generation output P _CHP (t) and heat output H _CHP (t) of the coal-fired steam extraction and condensing type cogeneration unit (A) during the time period of 0 to T×ΔT; the sampling period is ΔT; T is the number of acquisitions, and T is a natural number;

第三远程集中控制器(1123)采集0～T×ΔT时间段燃煤纯凝汽式火电机组(B)的发电出力电量P_CON(t)；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)、测量用户侧：i＝0～N，N为用户个数；每个用户均具有空调器(108)和制冷风机盘管(110)；1.2), measuring the user side: i=0～N, N is the number of users; each user has an air conditioner (108) and a cooling fan coil unit (110);

1.2.1)、第二远程集中控制器(1122)采集N个用户距热源燃煤抽汽凝汽式热电联产机组(A)的管道距离S_i；1.2.1), the second remote centralized controller (1122) collects the pipeline distance S _i of N users from the heat source coal-fired extraction and condensing type cogeneration unit (A);

1.2.2)、第二远程集中控制器(1122)采集0～T×ΔT时间段N个用户非制冷耗电量P_i(t)，采样频率为ΔT；1.2.2), the second remote centralized controller (1122) collects the non-cooling power consumption P _i (t) of N users in the time period of 0～T×ΔT, and the sampling frequency is ΔT;

1.2.3)、第二远程集中控制器(1122)采集0～T×ΔT时间段N个用户的制冷风机盘管(110)的耗冷量H_i(t)，采样频率为ΔT；1.2.3), the second remote centralized controller (1122) collects the cooling consumption H _i (t) of the refrigeration fan coil (110) of N users in the time period of 0～T×ΔT, and the sampling frequency is ΔT;

1.2.4)、第二远程集中控制器(1122)采集N个用户的空调器(108)装机容量

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

2)、计算2), calculation

2.1)、综合调度控制装置115计算所有用户各时段总的用电量：2.1), the integrated scheduling control device 115 calculates the total power consumption of all users in each time period:

${P P}_{sum sum} ((t t)) = = {Σ Σ}_{i i = = 00}^{N N} {P P}_{i i} ((t t));;$

2.2)、根据步骤2.1中计算出的各时段总用电量P_sum(t)，利用已知的SPSS(Statistical Product and Service Solutions)统计分析方法或多元回归统计分析方法，预测(T～2T)×ΔT时间段的电力负荷P_load(t)；根据步骤1)采集的燃煤抽汽凝汽式热电联产机组(A)的热出力H_CHP(t)，预测(T～2T)×ΔT的燃煤抽汽凝汽式热电联产机组(A)的热出力H_CHP(t)；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 _load (t) in the time period ×ΔT; heat output H _CHP (t) of the coal-fired steam extraction and condensing cogeneration unit (A) collected according to step 1), predicted (T～2T)×ΔT The thermal output H _CHP (t) of the coal-fired steam extraction and condensing cogeneration unit (A);

2.3)、用户分组：计算每个用户到热源的等效距离做取整运算，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为冷水在管道中的流速；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 cold water in the pipeline; ΔT is The unit adjustment time min, i.e. the period in which the comprehensive scheduling control device sends the control signal, in the present invention, the unit adjustment time is equal to the sampling period;

H_i(t，l)为第1组用户i在t时刻的制冷负荷；

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

为第1组用户i的空调器容量；

is the air conditioner capacity of user i in the first group;

3)、控制计算3), control calculation

3.1)、目标函数：3.1), objective function:

f_CHP为热电联产功率能耗MWH；

为热电联产爬坡能耗MWH；f_CON为纯凝汽火电机组功率能耗MWH；

为纯凝汽火电机组爬坡能耗MWH；本发明调度方法的目的使目标函数总能耗f的值最小，以达到节能调度的目的。f _CHP is the power consumption MWH of cogeneration;

is the climbing energy consumption MWH of the combined heat and power generation; f _CON is the power consumption MWH of the pure condensing steam thermal power unit;

is the climbing energy consumption MWH of the pure condensing steam thermal power unit; the purpose of the scheduling method of the present invention is to minimize the value of the total energy consumption f of the objective function, so as to achieve the purpose of energy-saving scheduling.

具体如下：details as follows:

a)、热电机组功率能耗：a), power consumption of thermoelectric unit:

${f f}_{CHP CHP} = = {Σ Σ}_{t t = = 00}^{T T} ((k k \cdot &Center Dot; {h h}_{CHP CHP} ((t t)) + + m m \cdot \cdot {p p}_{CHP CHP} ((t t)) + + c c)) \cdot \cdot ΔT ΔT - - - - - - ((22))$

h_CHP(t)为调节后热电联产供暖热出力MW；p_CHP(t)为调节后热电联产发电出力MWH；k、m、c为燃煤抽汽凝汽式热电联产机组A的煤耗系数；h _CHP (t) is the adjusted heat output MW of cogeneration heat and power; p _CHP (t) is the adjusted MWH output of cogeneration heat and power; Coal consumption factor;

b)、热电机组爬坡能耗：b), thermal power unit climbing energy consumption:

${f f}_{CHP CHP}^{ramp ramp} = = {Σ Σ}_{t t = = ((T T + + 11))}^{22 T T} {d d}_{CHP CHP} \cdot \cdot (({p p}_{CHP CHP} ((t t)) - - {p p}_{CHP CHP} ((t t - - 11)))) - - - - - - ((33))$

d为燃煤抽汽凝汽式热电联产机组A的爬坡煤耗系数；d is the climbing coal consumption coefficient of coal-fired extraction and condensing cogeneration unit A;

c)、火电机组功率能耗：c), thermal power unit power consumption:

${f f}_{CON CON} = = {Σ Σ}_{t t = = ((T T + + 11))}^{22 T T} 29.271 29.271 \cdot &Center Dot; {p p}_{CON CON} ((t t)) \cdot &Center Dot; {b b}_{CON CON} ((t t)) \cdot &Center Dot; ΔT ΔT - - - - - - ((55))$

b_CON(t)为调节后纯凝汽火电机组发电煤耗量g/kWh；p_CON(t)为调节后纯凝汽火电机组B的发电出力MW；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;

d_CON为火电机组(B)的爬坡煤耗系数；d _CON is the climbing coal consumption coefficient of the thermal power unit (B);

3.2)、约束方程3.2), constraint equation

3.2.1)、电力负荷平衡3.2.1), power load balance

3.2.2)、冷负荷平衡方程3.2.2), cooling load balance equation

空调器用电制冷代替热电联产热水出力转换为冷水的不足是方法的核心，如果Δh(t)表示第t时段热电联产热水不足的功率，则，其表达式为：The core of the method is the shortage of the air conditioner using electric refrigeration instead of cogeneration of hot water to convert hot water output into cold water. If Δh(t) represents the insufficient power of cogeneration of hot water in the tth period, then its expression is:

Δh(t)＝|H_CHP(t)-h_CHP(t)| (8)Δh(t)＝|H _CHP (t)-h _CHP (t)| (8)

第t时段热电联产冷水供给不足是由各个用户组使用空调器耗电制冷获得的，由于冷水传输的延时性，冷水不足的影响也存在延时，而这个延时随着用户组距离的变化而变化。例如，将所有用户分为近似的0，1，..，l，..，L用户组，对于第1用户组，冷水流到其的时间为一个单位调度时长，所以热水不足也将会在第t+1时段影响到第1用户组，同理，热水不足将会在第t+l影响到第l用户组。综上所述，第t时段热电联产热水供给不足将由0～L用户组的空调器，分别在t～(t+L)时段通过用电来补偿。具体公式为：Insufficient cold water supply for combined heat and power generation in period t is obtained by each user group using air conditioners to consume electricity for cooling. Due to the delay in cold water transmission, there is also a delay in the impact of insufficient cold water, and this delay varies with the distance of user groups. change with change. For example, divide all users into approximate 0, 1, .., l, .., L user groups. For the first user group, the time for cold water to flow to it is a unit scheduling time, so the lack of hot water will also be The first user group is affected 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 supply of hot water for combined heat and power generation in the tth period will be compensated by the air conditioners in the 0~L user group through electricity consumption during the t~(t+L) period respectively. The specific formula is:

其中：h_EHP(t+l，l)为t+l时刻第l组用户空调器的制冷功率之和，单位为MW；h_EHP(t，l)为t时刻第l组用户空调器的制冷功率之和，单位为MW；H_CHP(t)为步骤2.2)预测的燃煤抽汽凝汽式热电联产机组(A)t时段的热出力；Among them: _hEHP (t+l, l) is the sum of cooling power of user air conditioners in group l at time t+l, and the unit is MW; _hEHP (t, l) is the cooling power of user air conditioners in group l at time t The sum of power, the unit is MW; H _CHP (t) is the heat output of the coal-fired steam extraction and condensing cogeneration unit (A) predicted in step 2.2) during the t period;

如果式中h_EHP(t，l)可以取0的话，一方面，某些时段并不是所有用户组都参与补偿；另一方面，如果超过了规定的总调度时间，冷水供给不足仍未影响到处于远端的用户组，那么这些用户组也将不参与补偿。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; If the user group is located at the remote end, then these user groups will not participate in the compensation.

发电出力下限：Lower limit of power output:

发电出力上限：Power output upper limit:

发电出力限制：Power generation output limit:

供暖出力约束：Heating output constraints:

其中

为热电机组工况曲线参数，为t时段燃煤抽汽凝汽式热电联产机组的电出力的下限；

为t时段燃煤抽汽凝汽式热电联产机组的电出力的上限；

为t时段燃煤抽汽凝汽式热电联产机组的供暖出力上限；而为了避免热电联产机组供暖出力为0时，重启耗时，特在公式(13)中限制了供暖出力下限为5MW。同时在方法概述一节提到为了保证热电机组依然能够满足原有区域电力负荷的需求，可以另外限制热电联产发电出力大于原计划发电出力：in

is the working condition curve parameter of the thermoelectric unit, is the lower limit of the electric output of the coal-fired steam extraction and condensing cogeneration unit during the t period;

is the upper limit of the heating output of the coal-fired steam extraction and condensing cogeneration unit in the t period; and in order to avoid the time-consuming restart when the heating output of the cogeneration unit is 0, the lower limit of the heating output is limited to 5MW in formula (13) . At the same time, in the method overview section, it is mentioned that in order to ensure that the thermal power unit can still meet the demand of the original regional power load, it is possible to limit the power generation output of the combined heat and power generation to be greater than the original planned power generation output:

p_CHP(t)≥P_CHP(t)p _CHP (t)≥P _CHP (t)

${P P}_{CON CON}^{min min} \leq \leq {p p}_{CON CON} ((t t)) \leq \leq {P P}_{CON CON}^{max max} - - - - - - ((1414))$

其中

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

热电比约束：Thermoelectric ratio constraints:

空调器出力上限：Air conditioner output upper limit:

最后空调器耗电制冷既可以补偿冷水制冷的不足，也可以增加电力低谷时段的负荷，因此，需要求出各时段所有用户组的空调器耗电量之和：Finally, the power consumption of the air conditioner for cooling can not only compensate for the lack of cold water cooling, but also increase the load during low power periods. Therefore, it is necessary to find the sum of the power consumption of the air conditioners for all user groups in each period:

将步骤1)中直接采集变量P_CHP(t)，P_CON(t)；步骤2)中计算变量P_load(t)，H_CHP(t)，H_load(l)，P_EHP(l)代入控制计算中，对公式1～17进行联合求解，在目标函数总能耗f为最小值时，求得优化后所得执行变量热电联产发电出力p_CHP(t)、热电联产热出力h_CHP(t)、用户不同时刻空调器耗电量p_EHP(t，l)和制冷功率h_EHP(t，l)、火电机组发电出力p_CON(t)；Directly collect variables P _CHP (t), P _CON (t) in step 1); calculate variables P _load (t), H _CHP (t), H _load (l), P _EHP (l) in step 2) into In the control calculation, formulas 1 to 17 are jointly solved, and when the total energy consumption f of the objective function is the minimum value, the optimized executive variables cogeneration power output p _CHP (t), cogeneration heat output h _CHP (t), air conditioner power consumption p _EHP (t, l) and cooling power h _EHP (t, l) at different times of the user, thermal power generation output p _CON (t);

综合调度控制装置115根据步骤3)的优化后所得执行变量，将变量信号发送至供给侧的第一远程集中控制器1121、第三远程集中控制器1123和用户的第二远程集中控制器1122，执行具体动作，如下：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), Perform specific actions, as follows:

A、热电联产发电出力p_CHP(t)和热出力h_CHP(t)信号，控制热电联产在未来调节时间内各时段的动作；A. Combined heat and power generation output p _CHP (t) and heat output h _CHP (t) signals to control the actions of cogeneration in each period of future adjustment time;

B、用户不同时刻空调器耗电量p_EHP(t，l)和制冷功率h_EHP(t，l)，控制用户侧不同距离用户使用空调器制冷量，以及关闭风机盘管量；B. The power consumption p _EHP (t, l) and cooling power h _EHP (t, l) of the air conditioner at different times of the user, control the cooling capacity of the air conditioner used by the user at different distances from the user side, and the amount of closing the fan coil;

C、火电机组发电出力p_CON(t)信号，控制火电机组在未来调节时间内各时段的动作。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.

本发明中步骤1)中t为采集的时间段，t∈0～T；步骤3)、4)中t为调度的时间段，t∈(T+1)～2T。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.

请参阅图10所示，为使用本发明调度方法后的热电火电调度图，运用本方法，可实现热电机组参与调峰，火电承担基荷，减小总能耗。Please refer to FIG. 10 , which is a thermoelectric and thermal power dispatching diagram after using the dispatching method of the present invention. Using this method, thermal power units can participate in peak regulation, thermal power can undertake base load, and reduce total energy consumption.

请参阅图11所示，为使用本发明调度方法后不同性能空调器的节能效率图，从图中可以看出使用本发明调度方法后，空调器节能效果明显。Please refer to FIG. 11 , which is the energy-saving efficiency diagram of air conditioners 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 air conditioner is obvious after using the scheduling method of the present invention.

以上具体实施方式仅用于说明本发明，而非用于限定本发明。The above specific embodiments are only used to illustrate the present invention, but not to limit the present invention.

Claims

1. A joint dispatching system of extraction condensing type combined heat and power and pure condensing steam thermal power, is characterized in that, comprises:

Coal-fired steam extraction and condensing cogeneration unit (A) for generating electricity and heating hot water;

Coal-fired pure condensing steam thermal power unit (B) for generating electric energy;

The centralized heat absorption refrigerator (200) is connected to the hot water outlet of the coal-fired steam extraction and condensing cogeneration unit (A), and converts the hot water into cold water, and passes it into the heating pipeline (114);

An air conditioner (108) connected in parallel with the coal-fired steam extraction and condensing type cogeneration unit (A) and coal-fired pure condensing type thermal power unit (B) through a power cable (113), the air conditioner (108) Driven by the electric energy generated by the coal-fired steam extraction and condensing type cogeneration unit (A) and the coal-fired pure condensing type thermal power unit (B) to generate refrigeration and cold air;

An air conditioner remote control switch (117) for controlling the air conditioner (108);

The electricity meter that collects the user's non-cooling electricity;

The cooling fan coil (110) connected to the centralized heat absorption refrigerator (200) through the heat supply pipe (114), the cold water produced by the centralized heat absorption refrigerator (200) flows into the refrigerator Cooling air is generated in the fan coil unit (110);

A refrigeration fan coil cold water consumption meter (111), used to detect the data of cold water consumption of the refrigeration fan coil (110);

A remote control switch (116) for the cooling fan coil flow valve for controlling the cooling fan coil (110);

The first remote centralized controller (1121) collects the heating output hot water flow rate and power generation output of the coal-fired steam extraction and condensing cogeneration unit (A); and collects the collected coal-fired extraction and condensing cogeneration The heating output hot water flow rate of the unit (A) and the power generation output power are transmitted to the integrated dispatching control device (115);

The second remote centralized controller (1122), which records the pipeline distance information between the refrigeration fan coil unit (110) and the coal-fired steam extraction and condensing type cogeneration unit (A); the second remote centralized controller (1122) Collect the cold water consumption data detected by the refrigeration fan coil cold water consumption meter (111), collect the user's non-refrigeration power consumption, and then transmit the pipeline distance information, the user's non-refrigeration power consumption, and cold water consumption data to the comprehensive dispatching control device (115 );

The third remote centralized controller (1123) collects the power generation output electricity of the coal-fired pure condensing steam thermal power unit (B); and transmits the collected coal-fired pure condensing steam thermal power unit (B) power generation output electricity to the comprehensive dispatching control device (115);

The comprehensive scheduling control device (115) is composed of the heating output hot water flow rate of the coal-fired steam extraction and condensing cogeneration unit (A), the power generation output of the coal-fired steam extraction and condensing cogeneration unit (A), the fuel Generating output power of coal pure condensing steam thermal power unit (B), pipe distance information of user's refrigeration fan coil unit (110), user's non-refrigeration power consumption data and user's cold water consumption data to generate a dispatch 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 coal-fired cogeneration of heat and power of the coal-fired steam extraction and condensing type cogeneration unit (A) The action of the unit control executive device (118);

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 of the air conditioner (117) and the remote control switch of the cooling fan coil water valve (116). perform an action;

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

2. A kind of extraction condensing type combined heat and power generation and pure condensing steam thermal power combined dispatching system according to claim 1, is characterized in that, integrated dispatching control device (115) is respectively used for: calculating and obtaining coal-fired extraction steam condensing formula The scheduling control signal of the heating output, hot water flow and power generation output of the combined heat and power unit (A) at each time; the dispatch control of the power generation output of the coal-fired pure condensing thermal power unit (B) at each time is calculated signal; calculate the scheduling control signal of the cooling power consumption of the air conditioner (108) at the end user at each moment; calculate the scheduling of the amount of cooling water consumed by the cooling fan coil unit (110) at the end user at each moment control signal;

The remote control switch (116) of the refrigerating fan coil flow valve is remotely coupled with the comprehensive scheduling control device (115) through the second remote centralized controller (1122);

The remote control switch (117) of the air conditioner is coupled with the integrated dispatching control device (115) in a remote manner through the second remote centralized controller (1122);

The control execution device (118) of the coal-fired steam extraction and condensing type cogeneration unit is coupled with the comprehensive scheduling control device (115) in a remote manner through the first remote centralized controller (1121); the coal-fired steam extraction and condensing The control executive device (118) of the steam-type combined heat and power unit controls the action of the coal-fired feed valve, the boiler steam inlet valve, the heating steam extraction valve and the power generation steam flow valve connected to it according to the dispatch control signal obtained.

3. A kind of extraction condensing type combined heat and power generation and pure condensing steam thermal power combined dispatching system according to claim 1, is characterized in that, described comprehensive dispatching control device (115) comprises:

Receive user non-cooling power consumption data, user cold water consumption data, user pipeline distance information, heating output and hot water flow of coal-fired extraction and condensing cogeneration unit (A), coal-fired extraction and condensing cogeneration unit The first data receiving unit (201) of the power generation output of (A) and the power generation of coal-fired pure condensing steam thermal power unit (B);

a data decoder unit (202) that decodes all received data;

A data memory unit (203) storing all decoded data;

A dispatch control signal calculation unit (204) generating a dispatch control signal;

a signal encoder (205) for encoding said dispatch control signal; and

The encoded scheduling control signal is transmitted to the sending unit (206) of the first remote centralized controller (1121), the second remote centralized controller (1122), and the third remote centralized controller (1123).

4. A combined dispatching system of extraction condensing cogeneration and pure condensing steam thermal power according to claim 1, characterized in that the control execution device (118) of the coal-fired cogeneration unit includes dispatching control signal sending and receiving codes Memory (302), driving circuit (303) and mechanical gear control device (304), the dispatching control signal is decoded by the dispatching control signal sending and receiving encoding memory to generate a dispatching control instruction for coal-fired cogeneration units, and the electric power output by the driving circuit The dragging signal triggers the mechanical gear control device, which then controls the action of the coal-fired feed valve of the coal-fired cogeneration unit, the action of the heating steam extraction valve, and the action of the power generation steam flow valve.

5. A combined dispatching system of extraction condensing type cogeneration and pure condensing steam thermal power according to claim 1, characterized in that the control execution device (119) of the coal-fired pure condensing steam thermal power unit includes a dispatching control signal Sending and receiving code memory (402), driving circuit (403) and mechanical gear control device (404), the dispatching control signal is decoded by the dispatching control signal sending and receiving code memory to generate a coal-fired pure condensing steam thermal power unit dispatching control command, which is driven The electric drag signal output by the circuit triggers the mechanical gear control device, and the mechanical gear control device then controls the action of the coal-fired feed valve of the coal-fired pure condensing steam thermal power unit and the action of the power generation steam flow valve.

6. A kind of extraction condensing type combined heat and power generation and pure condensing steam thermal power combined dispatching system according to claim 1, is characterized in that, integrated dispatching control device (115) communicates with cloud computing computing service system ( 917) to connect and drive the cloud computing computing service system (917) to calculate, so as to obtain the dispatching control signal; the integrated dispatching control device (115) receives the dispatching control signal calculated by the cloud computing computing service system (917) through the power optical fiber (120) , and then issue 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.

7. A combined dispatching system of extraction condensing cogeneration and pure condensing steam thermal power according to claim 1, wherein the second remote centralized controller includes a non-refrigerating electric meter pulse counter and a cooling cold water flow pulse counter , pulse signal code converter, metering signal amplifier transmitter, and interconnected control signal receiving decoder and control signal remote control transmitter;

The pulse counter of the unrefrigerated electric meter is connected to the user’s unrefrigerated electric meter to detect the user’s unrefrigerated power consumption data. The unrefrigerated power consumption data of the user is processed by the pulse signal code converter and the metering signal amplification transmitter and then sent to the comprehensive dispatching control device (115) ;

The refrigeration cold water flow pulse counter is connected to the refrigeration fan coil cold water consumption meter (111), and is used to detect the cold water flow data of the refrigeration fan coil cold water consumption meter (111). The cold water flow data detected by the refrigeration cold water flow pulse counter is pulsed After processing by the signal code converter and metering signal amplifier transmitter, the pipeline distance information between the refrigeration fan coil unit (110) and the coal-fired steam extraction and condensing type combined heat and power unit (A) is transmitted 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 remote control switch of the air conditioner (117) and the remote control of the cooling fan coil water valve through the control signal remote control transmitter. The switch (116) performs the action.

8. A joint dispatching system of extraction condensing cogeneration and pure condensing steam thermal power according to claim 1, characterized in that the conversion efficiency of the centralized heat absorption refrigerator (200) is 1.

9. The dispatching method of a kind of extraction condensing cogeneration and pure condensing thermal power combined dispatching system according to any one of claims 1 to 8, characterized in that it comprises the following steps:

1), measurement:

1.1), measuring the supply side:

The first remote centralized controller (1121) collects the power generation output P _CHP (t) and heat output H _CHP (t) of the coal-fired steam extraction and condensing type cogeneration unit (A) during the time period of 0 to T×ΔT; the 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 (108) and a cooling fan coil unit (110);

1.2.1), the second remote centralized controller (1122) collects the pipeline distance S _i of N users from the heat source coal-fired extraction and condensing type cogeneration unit (A);

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

1.2.3), the second remote centralized controller (1122) collects the cooling consumption H _i (t) of the refrigeration fan coil (110) of N users in the time period of 0～T×ΔT, and the sampling frequency is ΔT;

2), calculation

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

{P P}_{sum sum} ((t t)) = = {Σ Σ}_{i i = = 00}^{N N} {P P}_{i i} ((t t));;

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; The heat output H _CHP (t) of the steam extraction and condensing cogeneration unit (A), predicting the heat output H _CHP (t) of the coal-fired extraction and condensing cogeneration unit (A) in the future;

2.3), user grouping: calculate the equivalent distance from each user to the heat source

Do the rounding operation, so that

2.4), to step 2.3) in the L group that divides, obtain the total cooling load H _load (l) and air conditioner capacity P _EHP (l) of all users of each group respectively;

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

is the air conditioner 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:

f f = = {f f}_{CHP CHP} + + {f f}_{CHP CHP}^{ramp ramp} + + {f f}_{CON CON} + + {f f}_{CON CON}^{ramp ramp} - - - - - - ((11))

f _CHP is power consumption of cogeneration, unit is MWH;

in:

a) Power consumption of coal-fired steam extraction and condensing cogeneration unit:

{f f}_{CHP CHP} = = {Σ Σ}_{t t = = ((T T + + 11))}^{22 T T} ((k k \cdot \cdot {h h}_{CHP CHP} ((t t)) + + m m \cdot \cdot {p p}_{CHP CHP} ((t t)) + + c c)) \cdot \cdot ΔT ΔT - - - - - - ((22))

h _CHP (t) is the adjusted heat output of combined heat and power generation, in MW; p _CHP (t) is the adjusted power generation output of heat and power cogeneration, in MW; k, m, and c are coal-fired steam extraction and condensation Coal consumption coefficient of cogeneration unit (A);

b) Energy consumption of coal-fired steam extraction and condensing cogeneration units climbing uphill:

{f f}_{CHP CHP}^{ramp ramp} = = {Σ Σ}_{t t = = ((T T + + 11))}^{22 T T} {d d}_{CHP CHP} \cdot \cdot (({p p}_{CHP CHP} ((t t)) - - {p p}_{CHP CHP} ((t t - - 11)))) - - - - - - ((33))

d _CHP is the climbing coal consumption coefficient of the coal-fired extraction and condensing cogeneration unit (A);

c), thermal power unit power consumption:

{b b}_{CON CON} ((t t)) = = \frac{{p p}_{CON CON} ((t t))}{0.003313105 0.003313105 \cdot &Center Dot; {p p}_{CON CON} ((t t)) - - 0.082266676 0.082266676} - - - - - - ((44))

{f f}_{CON CON} = = {Σ Σ}_{t t = = ((T T + + 11))}^{22 T T} 29.271 29.271 \cdot &Center Dot; {p p}_{CON CON} ((t t)) \cdot &Center Dot; {b b}_{CON CON} ((t t)) \cdot &Center Dot; ΔT ΔT - - - - - - ((55))

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;

d), thermal power unit climbing energy consumption:

{f f}_{CON CON}^{ramp ramp} = = {Σ Σ}_{t t = = ((T T + + 11))}^{22 T T} {d d}_{CON CON} \cdot &Center Dot; (({p p}_{CON CON} ((t t)) - - {p p}_{CON CON} ((t t - - 11)))) - - - - - - ((66))

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 _CHP (t) (7)

p _EHPs (t) is the sum of cooling power consumption of all user air conditioners at time t after adjustment, the unit is MW;

3.2.2), cooling load balance equation

Δh(t)＝|H _CHP (t)-h _CHP (t)| (8)

Δh (t) = Σ_{l = 0}^{L} h_{EHP} (t + l, l)

(T≤t+l≤2T) (9)

Among them: _hEHP (t+l, l) is the sum of cooling power of user air conditioners in group l at time t+l, and the unit is MW; _hEHP (t, l) is the cooling power of user air conditioners in group l at time t The sum of power, the unit is MW; H _CHP (t) is the heat output of the coal-fired steam extraction and condensing cogeneration unit (A) predicted in step 2.2) during the t period;

3.2.3), Constraints of the extraction condensing thermoelectric unit:

Lower limit of power output:

{p p}_{CHP CHP}^{min min} ((t t)) = = {l l}_{CHP CHP}^{min min} \cdot &Center Dot; {h h}_{CHP CHP} ((t t)) + + {n no}_{CHP CHP}^{min min} - - - - - - ((1010))

Power output upper limit:

{p p}_{CHP CHP}^{max max} ((t t)) = = {l l}_{CHP CHP}^{max max} \cdot &Center Dot; {h h}_{CHP CHP} ((t t)) + + {n no}_{CHP CHP}^{max max} - - - - - - ((1111))

Power generation output limit:

{p p}_{CHP CHP}^{min min} ((t t)) < < {p p}_{CHP CHP} ((t t)) \leq \leq {p p}_{CHP CHP}^{max max} ((t t)) - - - - - - ((1212))

Heating output constraints:

55 \leq \leq {h h}_{CHP CHP} ((t t)) \leq \leq {h h}_{CHP CHP}^{max max} ((t t)) - - - - - - ((1313))

in

is the working condition curve parameter of the thermoelectric unit;

3.2.4), Constraints of pure condensing thermal power units:

{P P}_{CON CON}^{min min} < < {p p}_{CON CON} ((t t)) \leq \leq {P P}_{CON CON}^{max max} - - - - - - ((1414))

in

3.2.5), user-side air conditioner constraints:

Thermoelectric ratio constraints:

h _EHP (t, l) = COP _EHP p _EHP (t, l) (15)

Air conditioner output upper limit:

0≤p _EHP (t, l)≤min(P _EHP (l), H _load (l)/COP _EHP ) (16)

Among them, P _EHP (l) is the sum of the capacity of the air conditioners of the first group of users, the unit is MW; H _load (l) is the cooling load of the first group of users, the unit is MW; COP _EHP is the coefficient of performance of the air conditioner; p _EHP (t, l) is the sum of the air conditioner power consumption of the first group of users in the period t, and the unit is MW;

The sum of the air conditioner power consumption of all user groups in each period:

{p p}_{EHPs EHPs} ((t t)) = = {Σ Σ}_{l l = = 00}^{L L} {p p}_{EHP EHP} ((t t,, l l)) - - - - - - ((1717))

Directly collect variables P _CHP (t), P _CON (t) in step 1); calculate variables P _load (t), H _CHP (t), H _load (l), P _EHP (l) in step 2) into Formulas 1 to 17 are combined and solved. When the total energy consumption f of the objective function is the minimum value, the execution variables obtained after _optimization are calculated. Heat output h _CHP (t) of steam extraction and condensing cogeneration units, power consumption p _EHP (t, l) of air conditioners at different times and refrigeration power h _EHP (t, l), coal-fired pure condensing thermal power Generating output of the unit 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 The remote centralized controller (1122) specifically performs the following actions:

A. Coal-fired steam extraction and condensing cogeneration units generate power p _CHP (t) and heat output h _CHP (t) signals to control the actions of cogeneration in each period of future adjustment time;

B. The power consumption p _EHP (t, l) and cooling power h _EHP (t, l) of the air conditioner at different times of the user, control the cooling capacity of the air conditioner used by the user at different distances from the user side, and the amount of closing the fan coil;

C. The coal-fired pure condensing steam thermal power unit generates power output p _CON (t) signal to control the actions of the thermal power unit in each period of the future adjustment time.