Method for optimizing power supply structure of transmitting end power grid with participation of new energy in peak load regulation
A technology of power grid power supply and optimization method, which is applied to wind power generation, circuit devices, AC network circuits, etc., can solve the problems of random output of renewable energy and random fluctuation of load, failure to consider energy abandonment, and waste of possible power generation energy, etc. Achieve the effect of strong practicability, good environmental protection, good low carbon and environmental protection
Active Publication Date: 2019-02-15
国家电网有限公司西南分部 +2
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This method focuses on the analysis of the matching degree of source and load, but does not consider the random output of renewable energy and the random fluctuation of load, which will have a certain impact on the final result
At the same time, the invention is mainly aimed at the power supply planning of the receiving-end power grid with UHV access, and insufficient consideration is given to the power supply planning of the sending-end power grid with large-scale hydropower, and each model does not consider the energy abandonment problem generated after random production simulation, which will cause A large amount of potential energy is wasted
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[0215] In this embodiment, the power structure optimization method of the power grid at the sending end considering the participation of new energy in peak regulation is applied to a region A in my country to realize the power supply expansion demand in this region in 2020, focusing on the participation of new energy in peak regulation, and at the same time considering clean energy abandonment Factors such as cost and peak shaving demand, local load peak shaving capacity, channel constraints, and demand response. Hydropower accounts for the majority in this area. In 2017, various types of units were installed as follows: 85.97 million kilowatts of hydropower, 33.61 million kilowatts of thermal power, 2.44 million kilowatts of wind power, 2.26 million kilowatts of solar power, and 260 thousand kilowatts of other types of units, totaling 124.54 million kilowatts. In 2020, it is planned to increase the unit capacity as follows: 23.8 million kilowatts of thermal power, 120.25 millio...
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The invention relates to a method for optimizing the power supply structure of a transmitting end power grid with participation of new energy in peak load regulation. A power supply structure optimization model is built in conjunction with various actual restraining conditions such as peak load regulation constraint on the basis of taking wind-light storage peak load regulation capacity into consideration to give an optimal power supply structure scheme under specific conditions. The method comprises the following steps: acquiring unit data, load-correlated data and price information data; building a power supply structure optimization model taking the participation of new energy in peak load regulation into consideration; acquiring a unit overhauling plan, and performing random productionsimulation of wind, solar energy, water, thermal power and pumped storage power generation by taking the output of a wind power plant and a solar power station with energy storage functions into consideration; and resolving the power supply structure optimization model by adopting a hybrid particle swarm algorithm to obtain an optimal power supply structure optimization scheme. Compared with theprior art, the method has the advantages of high practicability, high environmental friendliness, high efficiency and the like.
Description
technical field [0001] The invention relates to the technical field of power system power supply planning, in particular to a method for optimizing the power structure of a power grid at a sending end in which new energy sources participate in peak regulation. Background technique [0002] Power supply planning refers to the investigation and implementation of the site and construction conditions of each power plant based on the predicted power load demand and load characteristics within the planning period and on the premise of ensuring the specified power supply reliability indicators, fully considering the operating characteristics of each power plant, and the system. Based on factors such as the coordination of fuel sources and transportation conditions, simulation calculations, reliability analysis, and technical and economic analysis are carried out on various possible planning schemes, and the most reasonable power supply structure and the best power supply planning sc...
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IPC IPC(8): H02J3/46
CPCH02J3/46H02J2203/20Y02E10/76
Inventor 路亮魏明奎周全江栗柳璐蔡绍荣程浩忠张程铭袁杨
Owner 国家电网有限公司西南分部
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