金沙江下游梯级水库提前蓄水策略  

In-advance Refill Strategy for Cascade Reservoirs in Lower Jinsha River

作　　者：龚文婷 曹瑞 谭政宇 邢龙 王玮玉 朱文丽 李帅 GONG Wen-ting;CAO Rui;TAN Zheng-yu;XING Long;WANG Wei-yu;ZHU Wen-li;LI Shuai(River Basin Complex Administration Center,China Three Gorges Corporation,Yichang 443133,China)

机构地区：[1]中国长江三峡集团有限公司流域枢纽运行管理中心,湖北宜昌443133

出　　处：《长江科学院院报》2024年第1期1-8,共8页Journal of Changjiang River Scientific Research Institute

基　　金：国家重点研发计划项目(2021YFC3200303);国家自然科学基金长江联合基金项目(U2340205,U2040218);国家自然科学基金项目(52109024)。

摘　　要：随着长江上游水库群汛末集中蓄水问题日益突出,在确保防洪安全的前提下,提前抬升水库运行水位,有序衔接防洪与蓄水调度显得尤为重要。以金沙江下游乌东德、白鹤滩、溪洛渡、向家坝梯级水库为研究对象,选取发电量和水资源利用率为评价指标,探究汛期7—8月份梯级水库提前蓄水策略。研究结果表明:①平水(50%频率)、枯水(75%频率)和特枯(90%频率)来水条件下,乌东德、白鹤滩梯级水库应尽可能提前抬升运行水位,且优先抬升乌东德库水位。②7月份平水、8月份平水或枯水条件下,应优先将乌东德库水位抬升至960 m以上;7月份枯水、8月份平水或枯水条件下,应优先将乌东德库水位抬升至954 m以上。③不同来水条件下,溪洛渡水库应尽可能抬升库水位,但最高不超过585 m。In recent years,the issue of refilling cascade reservoir group in the upper Yangtze River at the end of flood season has become increasingly prominent.Ensuring flood control safety while raising the reservoir water level and facilitating a smooth connection between flood control and reservoir refill operations is of particular importance.Using power generation and water utilization rate as evaluation criteria,we investigated the strategy of in-advance water refill during flood season(July to August)for cascade reservoirs in lower Jinsha River,namely Wudongde,Baihetan,Xiluodu,and Xiangjiaba.The findings indicate the following:1)In normal(50%),low(75%),and extremely low(90%)inflow conditions,the reservoir water level for Wudongde and Baihetan should be raised in advance as much as possible,with priority given to Wudongde.Specifically,regardless of whether the inflow in August is normal or low,if the inflow in July is normal,the water level of Wudongde should be raised above 960 m as a priority.On the other hand,if the inflow in July is low,the water level of Wudongde should be raised above 954 m as a priority.2)For Xiluodu,regardless of the inflow conditions,it is advisable to raise the reservoir water level as much as possible,while ensuring it does not exceed 585 m.

关 键 词：提前蓄水策略 金沙江下游 梯级水库 防洪库容 综合效益 

分 类 号：TV213.9[水利工程—水文学及水资源]