论文部分内容阅读
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%。
After the water diversion from Central Yunnan and the Western Line Project of South-to-North Water Diversion Project have reached the design water transfer scale, the annual runoff of the upper reaches of the Yangtze River will be reduced by about 20.4 billion m3. In order to evaluate the impact of these two water diversion projects on the construction of the main stream in the upper reaches of the Yangtze River and the power generation benefits of the proposed hydropower stations under construction, a multi-objective optimal dispatch model was established. Floating-point multi-objective genetic algorithm for nonlinear optimization model. The results of the model evaluation show that the implementation of the water diversion project in Central Yunnan and the Western Route of South-North Water Diversion Project will have varying degrees of impact on the annual power generation and guaranteed output of 15 power stations from the top of the Yangtze River to the Gezhouba Dam. After years of average runoff, the total annual generation of these 15 power stations will be reduced by about 14% after both water transfer projects have reached the designed scale, of which the Three Gorges Power Station will be reduced by about 4%.