%0 Journal Article
%T 基于起调水位上限优化策略的水库弃水控制方法
Spillage Control Method Based on Optimization Strategy of Upper Limit Initial Water Level
%A 张聪通
%A 申建建
%A 程春田
%A 武新宇
%A 张政
%J Journal of Water Resources Research
%P 342-352
%@ 2166-5982
%D 2019
%I Hans Publishing
%R 10.12677/JWRR.2019.84040
%X
弃水控制是汛期水库发电调度的重要环节,降低水库起调水位进行预泄腾库可以有效控制梯级弃水,但如何确定水库起调水位是非常重要的技术问题。本文提出一种基于起调水位上限优化策略的弃水控制方法,以梯级弃水最小为目标,建立优化调度模型,并采用非线性全局优化方法进行求解;采用不同的起调水位策略优化获得特定组合洪水情景的梯级防弃水调度方案集,根据弃水量优选水库起调水位上限,最后采用该思路生成不同频率洪水场景对应的起调水位上限控制策略表。乌江流域构皮滩–思林–沙沱三库联合调度实例结果表明,当梯级遭遇历史最容易出现的洪水组合或者量级很大对水库调度极为不利的洪水组合时,都可以通过本文方法将梯级和各个水库的弃水控制在较低水平。
Spillage control is one of the important part of reservoir operation in flood season, and pre-discharging by reducing the initial water level is an effective method for spillage control. However, how to determine the initial water level of reservoir is a very important technical problem. A spillage control method based on optimization strategy of upper limit initial water level is proposed in the paper. Firstly, with the goal of minimizing spillage for cascade reservoirs, an optimal model is established, and solved by nonlinear global optimization method. Then, for an assumed flood combination scenario, the set of cascade spillage control scheduling schemes is obtained by inputting different initial water level strategies into the previous optimization model, and the optimal upper limit initial water level is achieved by comparing the amount of spillage between different schemes. Finally the upper limit initial water level control strategy table corresponding to different frequency flood scenarios is generated through the above idea. The case study results of the joint scheduling of the three reservoirs (Goupitan, Silin, Shatuo) in Wujiang River Basin show that the spillage water of cascade and each reservoir can be controlled at a lower level by the proposed method, when the cascade encounters the flood combination scenarios which are most likely to occur in history or the flood combination scenarios whose magnitude is very large and is extremely unfavorable to reservoir dispatching.
%K 弃水控制,起调水位,弃水最小模型,优化调度
Spillage Control
%K Initial Water Level
%K Minimum Spillage Model
%K Optimization Scheduling
%U http://www.hanspub.org/journal/PaperInformation.aspx?PaperID=31461