关键词: 工程蓄水, 方案优化, POA法, 锦屏一级水电站

Abstract:

Based on analysis of the design scheme of the fourth stage impoundment of Jinping I Hydropower Station, we proposed a new method to optimize the impoundment scheme, in which,  a maximum power output model of cascade hydropower stations during impounding period was established and was solved by POA method. Based on the presented optimal dispatching model and the practical inflow process of Yalong River for about 10 years, the new optimization scheme was put forward. The optimized scheme was compared with the original design scheme. The result shows that both the two schemes can meet the impoundment requirement, but the storage capacity of the optimized scheme can increase 950 million m³, and the generating capacity of downstream cascade hydropower station increase about 860 million kW·h.

Key words: reservoir impoundment, scheme optimization, POA, Jinping I Hydropower Station