龙门滩一级电站增容改造分析

Analysis on reformation for capacity expansion of Longmentan First Cascade Hydropower Station

龙门滩水库调节性能较差,一级电站投产后每年均有弃水。分析了增容的可能性和必要性,对增容改造方案进行了对比,提出了更新转轮、加装1台副发电机(1台水轮机同轴带动2台发电机)的改造方案,改造后取得了良好效果。

The regulation capability of the Longmentan Reservoir is poorer; after the first cascade hydropower station was put into operation,there was surplus water every year. The feasibility and the necessity of the capacity expansion were analyzed. Different reformation schemes for capacity expansion were compared,a reformation scheme was put forward,in which the turning wheel will be replaced by the new one,and an assistant generator will be added (two generators will be driven by one hydraulic turbine in one axial); and the favorable effect was obtained after the reformation.