三门峡水电站提高汛期发电效率分析

How to Enhance Hydropower Generation Efficiency of Sanmenxia Hydropower Station

198 9～ 1998年三门峡水电站进行了 10年汛期浑水发电试验。除进行材料试验解决了抗磨蚀问题以外 ,重点提出了“洪水排沙 ,平水发电”的运用方式。通过试验运用证明 ,“洪水排沙 ,平水发电”可有效提高汛期发电运行小时数和水量利用率 ,虽然汛期发电天数小于全汛期发电时汛期平均发电天数 。

In 1989~1998, prototype experiments were done in the Sanmenxia hydropower station to make a good use of sand laden flow for electricity generation. After the experiments, problems of abrasion to the generators have been eliminated, and, more importantly, a new operation mode, i.e., sand discharging in flood seasons while electricity generating by average flow, has been proven able to increase electricity production and water use efficacy.