CN106026081B - A real-time scheduling method for heating using abandoned wind power - Google Patents
A real-time scheduling method for heating using abandoned wind power Download PDFInfo
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- CN106026081B CN106026081B CN201610458220.8A CN201610458220A CN106026081B CN 106026081 B CN106026081 B CN 106026081B CN 201610458220 A CN201610458220 A CN 201610458220A CN 106026081 B CN106026081 B CN 106026081B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/008—Circuit arrangements for AC mains or AC distribution networks involving trading of energy or energy transmission rights
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
- H02J3/48—Controlling the sharing of the in-phase component
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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Abstract
本发明提供一种使用弃风电供暖的实时调度方法，包括以下步骤：实时发布弃风电力；达成弃风电力交易；确认弃风电力交易。本发明考虑到风电的随机性和波动性，通过实时读取风电实际出力或风电评估出力，准确实时评估可用于电采暖的弃风电力，并进行交易，避免不合理的弃风被用于电供暖，增大风电利用率，保障各方合理利益。
The present invention provides a real-time dispatching method for heating using abandoned wind power, comprising the following steps: real-time release of abandoned wind power; reaching a transaction of abandoned wind power; and confirming the transaction of abandoned wind power. The present invention takes into account the randomness and volatility of wind power, by reading the actual output of wind power or the estimated output of wind power in real time, accurately and real-timely evaluating the abandoned wind power that can be used for electric heating, and conducting transactions, so as to avoid unreasonable abandoned wind being used for electricity. Heating, increase the utilization rate of wind power, and protect the reasonable interests of all parties.
Description
Technical Field
The invention belongs to the technical field of new energy power generation, and particularly relates to a real-time scheduling method for heating by using abandoned wind power.
Background
The wind energy is used as a clean renewable energy source, and the vigorous development of the wind power can relieve the tension of power utilization, provide sustainable power for the development of economy, reduce the excessive dependence on the traditional fossil fuel and have important significance on energy conservation and environmental protection. However, wind power has the characteristics of randomness, volatility and the like, and the adjusting capability of a power supply is directly related to the level of receiving the wind power by a power grid. In the three north area of China, thermal power generating units, particularly cogeneration units are more, the cogeneration units generally run in a mode of 'fixing power by heat' under the requirements of residents and industrial heating in winter, the peak regulation capacity of a power supply is obviously reduced, a large amount of wind has to be abandoned in order to ensure the active balance of heat supply and a power grid in the load valley period, and the acceptance of wind power is seriously influenced.
With the rapid increase of the installed capacity of new energy, wind power and electricity limitation situations appear in parts of northern areas of China, and particularly in the heat supply period in winter, the thermal power generating units use heat to fix the power, the peak regulation capacity of a power grid is reduced, and the wind power and electricity limitation situations are further worsened. In China, heating is performed in winter, conventional energy sources such as coal and the like are main heat sources of the heating industry, and low-efficiency small heating modes such as scattered small boilers and small heating stoves are adopted in part of areas, so that air pollutant emission in the heating period in winter is increased. Therefore, the wind power is abandoned for heating in the heating period in winter, and the method is an effective means for solving the problems of wind power electricity limitation and improving energy conservation and emission reduction.
The energy management department forcibly pushes away to adopt abandoned wind power for heating, and the electric heating usually adopts a mode of starting up at a full load fixed time interval in the actual operation process, but the electric heating operation may not have abandoned wind or has small abandoned wind, the electric power used for the electric heating is the electric power generated by a conventional power supply, and the operation mode has limited effect on reducing the abandoned wind rate.
Disclosure of Invention
In consideration of randomness and volatility of wind power, the invention provides a real-time scheduling method for practical wind power abandonment heating, by reading actual wind power output or wind power evaluation output in real time, wind power abandonment power which can be used for electric heating is accurately evaluated in real time, and trading is carried out, so that unreasonable wind abandonment is prevented from being used for electric heating, the wind power utilization rate is increased, and reasonable benefits of all parties are guaranteed.
In order to achieve the purpose of the invention, the invention adopts the following technical scheme:
the invention provides a real-time scheduling method for heating by using abandoned wind power, which comprises the following steps:
step 1: releasing abandoned wind power in real time;
step 2: achieving the transaction of wind power abandonment;
and step 3: and confirming the wind abandoning power transaction.
The step 1 comprises the following steps:
step 1-1: when the distance is 15min from the power limiting time, a power grid dispatcher issues a power limiting instruction to a wind power plant AGC control platform according to the operating condition of a power system, and the wind power plant AGC control platform issues the power limiting instruction to a wind power plant active power control system;
step 1-2: the priority dispatching evaluation system evaluates whether the electricity limiting instruction accords with a new energy priority consumption principle, prompts a power grid dispatching person if the electricity limiting instruction does not accord with the new energy priority consumption principle, and executes the step 1-3 if the electricity limiting instruction accords with the new energy priority consumption principle;
step 1-3: reading the actual wind power output at the distance of 5min from the electricity limiting moment, and reading the wind power evaluation output if the wind power plant is in the electricity limiting state at the moment;
step 1-4: and the difference between the actual wind power output/estimated wind power output and the power limiting instruction is the abandoned wind power, and the abandoned wind power is issued to the combined dispatching platform within 1 min.
The step 2 comprises the following steps:
step 2-1: an electric heating user reads the abandoned wind power and sends an subscribing intention to the joint dispatching platform within 1 min;
step 2-2: if the subscribed electric power is smaller than the abandoned wind electric power, the combined dispatching platform issues subscribed confirmation information to the electric heating users, and the abandoned wind electric power which is not subscribed is continuously distributed to the wind power plant AGC control platform; and if the subscription electric power is larger than or equal to the abandoned wind electric power, the combined dispatching platform issues subscription confirmation information to the electric heating users.
The step 2 comprises the following steps:
step 3-1: after the abandoned wind power transaction is achieved, reading the actual wind power output and the power consumption of electric heating users in real time at the beginning moment of abandoned wind, or the estimated wind power output and the power consumption of the electric heating users;
step 3-2: if the power consumption of the electric heating users is less than the electricity consumption of the wind abandoning power, confirming that the transaction electricity quantity is equal to the electricity consumption of the electric heating users, and continuously distributing the wind abandoning power which does not reach the transaction to the AGC control platform of the wind power plant; if the electricity consumption power of the electric heating user is larger than or equal to the abandoned wind electricity, the transaction electricity quantity is determined to be equal to the abandoned wind electricity quantity, and the excess electricity quantity of the electric heating user is separately measured;
step 3-3: recording the relevant information, and returning to the step 1-3 to continue the execution.
The related information comprises actual wind power output, estimated wind power output, power consumption of electric heating users, a power limiting instruction, abandoned wind power, subscription power, reading time of actual wind power output, reading time of estimated wind power output, reading time of power consumption of electric heating users, issuing time of power limiting instruction, issuing time of abandoned wind power and issuing time of subscription power.
Compared with the closest prior art, the technical scheme provided by the invention has the following beneficial effects:
1. the electric heating heat storage designed by the invention fully utilizes abandoned wind power which cannot be accommodated by a power grid, and improves the utilization level of the wind power;
2. the electric heating designed by the invention mainly uses abandoned wind power for heating, the electricity price cost is lower, and the economical efficiency of electric heating operation is improved;
3. in consideration of randomness and volatility of wind power, by reading actual wind power output or theoretical wind power output in real time, abandoned wind power which can be used for electric heating is accurately evaluated in real time, and trading is performed, so that unreasonable abandoned wind is prevented from being used for electric heating, the wind power utilization rate is increased, and reasonable benefits of all parties are guaranteed.
Drawings
FIG. 1 is a flow chart of a real-time scheduling method for heating using wind curtailment power generation in an embodiment of the present invention;
FIG. 2 is a schematic diagram of a time window of a wind curtailment power heating real-time scheduling process in the embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The invention provides a real-time scheduling method for heating by using abandoned wind power, which can accurately evaluate abandoned wind power which can be used for electric heating in real time by considering the randomness and the volatility of the wind power, avoid unreasonable abandoned wind from being used for electric heating, increase the utilization rate of the wind power and guarantee the reasonable benefits of all parties.
The following describes a specific implementation flow of the present invention with reference to a flow chart (fig. 1) of a wind curtailment power supply real-time scheduling and a time window (fig. 2) of the wind curtailment power supply real-time scheduling.
The invention provides a real-time scheduling method for heating by using abandoned wind power, which comprises the following steps:
step 1: releasing abandoned wind power in real time;
step 2: achieving the transaction of wind power abandonment;
and step 3: and confirming the wind abandoning power transaction.
The step 1 comprises the following steps:
step 1-1: when the distance is 15min from the power limiting time, a power grid dispatcher issues a power limiting instruction to a wind power plant AGC control platform according to the operating condition of a power system, and the wind power plant AGC (automatic Generation control) control platform issues the power limiting instruction to a wind power plant active power control system;
step 1-2: the priority dispatching evaluation system evaluates whether the electricity limiting instruction conforms to a new energy priority consumption principle (the new energy priority consumption principle is recorded in wind power enterprise logo 18_ QGDW 11065 and 2013 new energy priority dispatching work specification), if not, prompts a power grid dispatching person, and if so, executes the step 1-3;
step 1-3: reading the actual wind power output at the distance of 5min from the electricity limiting moment, and reading the wind power evaluation output if the wind power plant is in the electricity limiting state at the moment;
step 1-4: and the difference between the actual wind power output/estimated wind power output and the power limiting instruction is the abandoned wind power, and the abandoned wind power is issued to the combined dispatching platform within 1 min.
The step 2 comprises the following steps:
step 2-1: an electric heating user reads the abandoned wind power and sends an subscribing intention to the joint dispatching platform within 1 min;
step 2-2: if the subscribed electric power is smaller than the abandoned wind electric power, the combined dispatching platform issues subscribed confirmation information to the electric heating users, and the abandoned wind electric power which is not subscribed is continuously distributed to the wind power plant AGC control platform; and if the subscription electric power is larger than or equal to the abandoned wind electric power, the combined dispatching platform issues subscription confirmation information to the electric heating users.
The step 2 comprises the following steps:
step 3-1: after the abandoned wind power transaction is achieved, reading the actual wind power output and the power consumption of electric heating users in real time at the beginning moment of abandoned wind, or the estimated wind power output and the power consumption of the electric heating users;
step 3-2: if the power consumption of the electric heating users is less than the electricity consumption of the wind abandoning power, confirming that the transaction electricity quantity is equal to the electricity consumption of the electric heating users, and continuously distributing the wind abandoning power which does not reach the transaction to the AGC control platform of the wind power plant; if the electricity consumption power of the electric heating user is larger than or equal to the abandoned wind electricity, the transaction electricity quantity is determined to be equal to the abandoned wind electricity quantity, and the excess electricity quantity of the electric heating user is separately measured;
step 3-3: recording the relevant information, and returning to the step 1-3 to continue the execution.
The related information comprises actual wind power output, estimated wind power output, power consumption of electric heating users, a power limiting instruction, abandoned wind power, subscription power, reading time of actual wind power output, reading time of estimated wind power output, reading time of power consumption of electric heating users, issuing time of power limiting instruction, issuing time of abandoned wind power and issuing time of subscription power.
Finally, it should be noted that: the above embodiments are only intended to illustrate the technical solution of the present invention and not to limit the same, and a person of ordinary skill in the art can make modifications or equivalents to the specific embodiments of the present invention with reference to the above embodiments, and such modifications or equivalents without departing from the spirit and scope of the present invention are within the scope of the claims of the present invention as set forth in the claims.
Claims (4)
1. A real-time scheduling method for heating by using abandoned wind power is characterized in that: the method comprises the following steps:
step 1: releasing abandoned wind power in real time;
step 2: achieving the transaction of wind power abandonment;
and step 3: confirming the transaction of abandoned wind power;
the step 1 comprises the following steps:
step 1-1: when the distance is 15min from the power limiting time, a power grid dispatcher issues a power limiting instruction to a wind power plant AGC control platform according to the operating condition of a power system, and the wind power plant AGC control platform issues the power limiting instruction to a wind power plant active power control system;
step 1-2: the priority dispatching evaluation system evaluates whether the electricity limiting instruction accords with a new energy priority consumption principle, prompts a power grid dispatching person if the electricity limiting instruction does not accord with the new energy priority consumption principle, and executes the step 1-3 if the electricity limiting instruction accords with the new energy priority consumption principle;
step 1-3: reading the actual wind power output at the distance of 5min from the electricity limiting moment, and reading the wind power evaluation output if the wind power plant is in the electricity limiting state at the moment;
step 1-4: and the difference between the actual wind power output/estimated wind power output and the power limiting instruction is the abandoned wind power, and the abandoned wind power is issued to the combined dispatching platform within 1 min.
2. The real-time scheduling method for heating by using abandoned wind power as claimed in claim 1, characterized in that: the step 2 comprises the following steps:
step 2-1: an electric heating user reads the abandoned wind power and sends an subscribing intention to the joint dispatching platform within 1 min;
step 2-2: if the subscribed electric power is smaller than the abandoned wind electric power, the combined dispatching platform issues subscribed confirmation information to the electric heating users, and the abandoned wind electric power which is not subscribed is continuously distributed to the wind power plant AGC control platform; and if the subscription electric power is larger than or equal to the abandoned wind electric power, the combined dispatching platform issues subscription confirmation information to the electric heating users.
3. The real-time scheduling method for heating by using abandoned wind power as claimed in claim 2, characterized in that: the step 2 comprises the following steps:
step 3-1: after the abandoned wind power transaction is achieved, reading the actual wind power output and the power consumption of electric heating users in real time at the beginning moment of abandoned wind, or the estimated wind power output and the power consumption of the electric heating users;
step 3-2: if the power consumption of the electric heating users is less than the electricity consumption of the wind abandoning power, confirming that the transaction electricity quantity is equal to the electricity consumption of the electric heating users, and continuously distributing the wind abandoning power which does not reach the transaction to the AGC control platform of the wind power plant; if the electricity consumption power of the electric heating user is larger than or equal to the abandoned wind electricity, the transaction electricity quantity is determined to be equal to the abandoned wind electricity quantity, and the excess electricity quantity of the electric heating user is separately measured;
step 3-3: recording the relevant information, and returning to the step 1-3 to continue the execution.
4. The real-time scheduling method for heating by using abandoned wind power as claimed in claim 3, characterized in that: the related information comprises actual wind power output, estimated wind power output, power consumption of electric heating users, a power limiting instruction, abandoned wind power, subscription power, reading time of actual wind power output, reading time of estimated wind power output, reading time of power consumption of electric heating users, issuing time of power limiting instruction, issuing time of abandoned wind power and issuing time of subscription power.
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| CN106786764B (en) * | 2017-01-13 | 2019-02-01 | 东北电力大学 | A kind of hydrogen manufacturing capacity configuration optimizing method using hydrogen generating system consumption wind-powered electricity generation abandonment |
| CN107769272B (en) * | 2017-11-02 | 2021-07-13 | 国网辽宁省电力有限公司 | A control method for large-capacity electric heat storage access to automatic power generation |
| CN109948872B (en) * | 2017-12-20 | 2024-01-19 | 中国电力科学研究院有限公司 | A real-time dispatching method and system for wind power abandonment transactions |
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