Study on Complementary Dispatch of Large-scale Hydro-wind-photovoltaic Generation
Photovoltaic power generation has the characteristic of generating electricity during the daytime,resulting in a bell-shaped daily output process.Wind power generation has strong randomness in output and exhibits anti-peak regulation characteristics.The regulation of hydropower to suppress the random fluctuations of wind and photovoltaic power generation is an effective way to comprehensively utilize renewable energy and achieve the dual carbon goal.In this context,based on the existing scenarios of grid-connection of hydropower,wind,and photovoltaic power,this paper analyzes the typical complementary development forms of hydropower-wind-photovoltaic clean energy in China.Then,two complementary scheduling modes consisting of relying on the power grid and bundling integration are analyzed,and advantages and disadvantages of the two scheduling modes are compared.Also,prospect of key technologies for large-scale complementary scheduling of are analyzed.This study will provide references for future large-scale hydropower-wind-photovoltaic complementary utilization.
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