金沙江中下游梯级优化开发模式探讨

随着长江上游和金沙江水利、水电梯级的逐步开发,从梯级整体效益出发,考虑梯级长期保持最大效益成为最重要和最值得认真研究的问题之一。本文结合金沙江中下游流域水沙特性和梯级水库开发特点,指出原开发模式存在的不足,提出金沙江梯级的优化开发模式-梯调方案。研究表明,梯调方案考虑了金沙江流域梯级开发的上下游互补及功能定位优化,最大限度满足流域的长远防洪、发电和减淤,对于流域长远利用和金沙江梯级开发和管理具有重要参考意义。

Optimized scheme proposed for the exploitation mode for the middle and lower reaches of Jinsha river

With the exploitation of the upper reach of Yangtze River and Jinsha river,how to determine its regulation mode properly and how to maximize its benefit in the long term becomes one of the most important and valuable problems.By considering the specific characteristics of the catchments and reservoirs on the middle and lower reaches of the Jinsha river,an optimized scheme called "cascade reservoir regulation"is presented in this paper.Study reveals that the optimized regulation mode is of great significance to accomplish better flood control, enhance power benefit compensation to the lower cascade reservoirs,reduce sedimentation in large reservoirs on the lower reach,improve the storage reliability of Hutiaoxia reservoir and achieve the long term use of the whole basin.