上游水电站梯级调度对龙头石水电站效益的影响

Effects of Cascade Operation of Upstream Hydropower Stations on the Benefits of Longtoushi Hydropower Station

为探讨调节性能差的水电站在水库群梯级调度中的受益情况,以大渡河龙头石水电站为研究对象,建立猴子岩、长河坝、大岗山、龙头石4库梯级调度模型,通过设置不同调度情景定量分析不同频率典型年上游梯级水电站调度对龙头石水电站的影响。结果表明,上游水库对龙头石坝址来水有蓄丰补枯的作用,减少弃水,水资源利用率提高至91. 4%(增幅2. 0%),发电量增加0. 66亿k W·h(增幅2. 2%)。

In order to discuss the benefit of hydropower station with poor regulation performance in the cascade operation of reservoir group, the Longtoushi Hydropower Station in Dadu River is taken as the research object and a cascade operation model including Houziyan, Changheba, Dagangshan and Longtoushi hydropower stations is established. The effects of upstream three hydropower stations＇ operation on Longtoushi Hydropower Station under representative hydrological years are analyzed under set three operation situations. The results show that, under the cascade operation of upstream hydropower stations, the water abandonment in Longtoushi Hydropower Station is reduced, the water resources utilization is increased to 91. 4% （with a increase of 2. 0%） and the power generation is increased by 66 million k W·h （with a increase of 2. 2%）.