Sending end power grid power source structure planning method considering local load peak regulation capacity

Abstract

The invention relates to a sending end power grid power source structure planning method considering local load peak regulation capacity. A power source structure planning model is established in combination with various actual constraint conditions such as peak regulation constraints on the basis of considering wind and light storage peak regulation capacity and local load peak regulation capacity. The method comprises the following steps: establishing a power source structure planning model considering local load peak regulation capacity; obtaining a unit maintenance plan, considering to addthe power and local load peak regulation capacity of an energy storage wind power plant and a solar power station, and carrying out random production simulation of wind, solar energy, water, fire andpumping storage power generation; and obtaining hybrid particle swarm optimization to solve the power source structure planning model, and thus obtaining an optimal power source structure planning scheme. Compared with the prior art, the method has the advantages that users and electric automobiles are considered to serve as local load to participate electric power system peak regulation actively, the difference between peak and valley of the system can be reduced effectively and the difficulty of electric power system peak regulation is relieved.

Description

technical field [0001] The invention relates to the technical field of power system structure planning of electric power systems, in particular to a power structure planning method of a power grid at a sending end in consideration of local load peak-shaving capabilities. 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 ...

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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