乌江洪家渡水电站水光互补协调运行及其对梯级的影响研究

Discussion on the Coordinated Operation of Water and Light Complementary of Hongjiadu Hydropower Station on Wujiang River and Its Influence on the Cascade

在考虑电站通道容量下,首次提出“水电归入互补比例”概念和分析方法,将水电站容量和电量按“水电归入互补比例”作为调节光伏的容量和电量,建立水光互补协调运行模型,分析洪家渡配置450MW和540MW光伏装机方案,在光伏电量吸纳率不低于95%时,水电站水光互补协调运行方式;并分析了光伏出力预报彻底失败时和洪家渡非汛期向下游补水时,洪家渡水光互补后对梯级的影响,供类似工程参考借鉴。

Considering the channel capacity of the power station,the concept and analysis method of“hydropower into complementary proportion”are proposed for the first time.The capacity and electricity of the hydropower station are taken as the capacity and electricity of photovoltaic regulation according to the“hydropower into complementary proportion”,and a water photovoltaic complementary coordinated operation model is established.The scheme for Hongjiadu to allocate 450MW and 540MW photovoltaic installations is analyzed.When the photovoltaic energy absorption rate is not less than 95%,the water photovoltaic complementary coordinated operation mode of the hydropower station is established;And analyzed the impact of complementary water and light on the cascade of Hongjiadu when the photovoltaic output prediction failed completely and when Hongjiadu replenishes water downstream during non flood seasons,providing reference for similar projects.