含翻水线的两库系统联合调度优化方法研究

丰水地区水库和泵站系统水资源优化调度的目标应该是解决系统季节性缺水、弃水、补水共存的矛盾。针对含有翻水线的两库系统,对系统的联合调度控制参数设计正交试验,然后采用动态规划对子系统模型进行求解,可以同时获得两座水库最优的供、弃水量过程和两座泵站最优的提水量过程。将该方法应用于江苏省南京市六合区山湖水库与泥桥水库及其翻水线的联合调度方案中,以2016年为例,在满足系统需水的前提下,可以减少25. 7%的系统年总补水量,节约245 h的泵站运行时间,降低了系统的运行成本。

Optimization method for joint operation of two reservoirs with a series of pumping stations

The optimization purpose of a reservoir-and-pumping-station system in humid areas should be determining the optimal joint operation policy to reduce water spills of reservoirs, water replenishments of pumping stations, and meeting water demands. An optimization method for joint operation of a two-reservoir system with a series of pumping stations in humid areas is proposed in this paper. The method is based on dynamic programming and orthogonal test, and the dynamic programming is used to solve the subsystem models and orthogonal test is used to derive the joint operation policy between the subsystems, which can finally obtain the operation scheme both of the reservoirs and pumping stations. The proposed method was applied to the joint operation scheme of Shanhu Reservoir and Niqiao Reservoir with their sharing pumping stations in Liuhe District, Jiangsu Province, China. The results showed that the optimization method could reduce water replenishment of the system by 25.7% and save the operation time of pumping stations by 245 h in 2016, which reduced the operation cost.