长江上游调水对干流电站发电效益的影响  

Impact of water transfer on hydropower generation of power plants in the upper reaches of the Yangtze River

作　　者：张远东[1] 魏加华[1] 周建军[1] 

机构地区：[1]清华大学水利水电工程系,水沙科学与水利水电工程国家重点实验室,北京100084

出　　处：《清华大学学报（自然科学版）》2008年第6期955-958,共4页Journal of Tsinghua University(Science and Technology)

基　　金：国家自然科学基金(创新研究群体科学基金)资助项目(50221903)

摘　　要：滇中调水和南水北调西线工程达到设计输水规模后,长江上游干流的年径流量将相应减少约204亿m3。为评价这两项调水工程对长江上游干流已建、在建和拟建电站发电效益的影响,建立了梯级多目标优化调度模型。采用浮点多目标遗传算法进行非线性优化模型求解。模型评价的结果表明,滇中调水和南水北调西线工程的实施,将对长江上游干流自托顶至葛洲坝共计15座电站的年发电量和保证出力产生不同程度的影响。在多年平均径流条件下,两项调水工程均达到设计规模后,这15座电站的年发电总量将减少14%左右,其中三峡电站约减少4%。When the Central Yunnan Province Water Transfer Project and the western route of the South-to-North Water Transfer Project reach to their respective planned flow rates, the annual runoff in the upper reaches of the Yangtze River will decrease by about 20. 4 billion m3. An optimal cascade dispatching model was developed to quantitatively evaluate the impact of the two water transfer projects on hydropower generation of completed, under construction and proposed power plants. The float-encoding genetic algorithm was used to solve the multi-objective nonlinear model. The simulations show that the two water transfer projects will exert considerable influence on the power generation of fifteen power plants （from the Tuoding Power Plant to the Gezhouba Power Plant）. If the two water transfer projects are fully online the total annual power generation of the fifteen power plants will decrease by 14%. The yearly power generation reduction of the Three Gorges Power Plant will be 4%.

关 键 词：调水工程 水力发电 三峡电站 长江流域上游 

分 类 号：TV68[水利工程—水利水电工程]