清江梯级电站防洪库容分配对发电效益的影响

The Influences of Flood Control Capacity Allocation to Power Generation Benefit in Qingjiang Cascade Hydropower Stations

以清江梯级电站汛期为长江洪水错峰预留的10亿m3防洪库容在水布垭水库和隔河岩水库的分配方案为研究对象,以梯级电站整体发电效益最大为目标,建立模拟梯级电站联合调度模型。采用1951～2011年日径流资料对模型进行验证,发电效益有明显增加。

The allocation scheme of 109 m3 flood control capacity in Shuibuya reservoir and Geheyan reservoir, reserved by Qingjiang Cascade Hydropower Stations for peak-alternation of the Yangtze River flood during flood season, is taken as research subject. A simulation model of the united regulation of the cascade hydropower stations is built with the tar- get of maximum power generation benefit of the cascade hydropower stations. The model verified by daily runoff data from year 1950 to year 2011 shows that the power generation benefit increases evidently.