三峡—葛洲坝梯级电站水能优化利用效益分析

Analysis of Optimization of Water Energy Utilization in Three Gorges-Gazhouba Cascade Hydroelectric Projects

三峡—葛洲坝梯级电站是我国的巨型水电站,控制水量接近长江总水量的一半,电站的水能优化利用对充分利用长江流域水资源、提高电站发电效益至关重要。根据长江上游流域来水特性及梯级枢纽的运行特点,对梯级电站在三峡工程围堰发电期的水能优化利用途径、取得的发电效益及初期运行期梯级电站水能优化利用的潜力进行了系统分析,有利于提高电站的发电效益。

The Three Gorges-Gazhouba Cascade Hydroelectric Projects are large size hydropower projects in China controlling half of the total volume of the Changjiang river water. The optimized utilization of the water energy of the projects is vital for full utilization of the Changjiang river water and increase of power generation benefit. The paper has made systematic analysis of the ways for optimized utilization of the water energy during initial power generation at cofferdam period of the Three Gorges project, considering the features of inflow from the upstream and the performance features of operation of the cascade projects. It will help increase power generation benefits of the power projects.