Method for optimizing power supply structure of transmitting end power grid with participation of new energy in peak load regulation

Abstract

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...

AI Technical Summary

Problems solved by technology

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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