Wind-solar complementary system capacity matching method based on stochastic programming model

Abstract

The invention discloses a wind-solar complementary system capacity matching method based on a stochastic programming model. The wind-solar resource distribution of different regions is obtained through selecting the meteorological data of different regions; a wind-solar complementary system is taken as a research object, and a wind-solar complementary system wind-solar capacity matching model taking stable power output as a target is established based on chance constraint planning in a stochastic programming theory; the model is solved by adopting a particle swarm algorithm based on a stochastic simulation technology to obtain an optimal wind-solar capacity matching of the system; and the optimal wind-solar capacity matching of the wind-solar complementary system in different regions is obtained by combining the comprehensive distribution results of the wind-solar resources in different regions. According to the method, complementarity of wind and solar resources is fully excavated, working pressure of balancing generating capacity and demand quantity of energy storage elements can be relieved, equipment loss of an energy storage system is reduced, system economy is improved, and optimal wind and solar matching diagrams of different regions in China are obtaine. The method has reference and guidance effects on design planning of the wind-solar complementary system in the future.

Description

technical field [0001] The invention belongs to the technical field of capacity ratio of wind-solar hybrid system, and in particular relates to a capacity ratio method of wind-solar hybrid system based on a stochastic programming model. Background technique [0002] With the rapid development of the economy, the energy crisis and environmental pollution problems are becoming more and more serious, and the penetration rate of renewable energy power generation in the power system is increasing year by year, especially in solar photovoltaic power generation and wind power generation systems. In 2019, China's total wind power generation Accounting for about 10% of the country's total power generation, an increase of about 16% over the previous year. The wind-solar hybrid power generation system combines the complementarity of wind energy and solar energy in time and space, and makes full use of the natural advantages of the two. It is considered to be an effective way to deal wi...

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Problems solved by technology

[0004] In order to solve the problem that the existing wind-solar hybrid system capacity ratio research does not consider the randomness of the actual output power of wind-solar power generation, the present invention proposes a wind-solar hybrid system capacity ratio method based on a stochastic programming model

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