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电力系统规划、水电站水库参数选择及水库调度运行要求水电站(水库)群进行最优补偿调节,以提高系统总的保证出力,获得最大的替代容量效益。但随着库群数目的增加,其“维数灾”使得现行一些传统优化方法难于求解,为此,本文应用大系统递阶控制原理和方法,以保证出力最大为准则,供水期出力相等作为关联,应用关联平衡法将库群大系统分解成单个水库手系统来求解,构成水电站群最优补偿调节的二级递阶结构,第一级我们应用可变容差法求解子问题,在第二级应用梯度法,这样上下两级反复迭代来求原问题的最优解。该方法用于大渡河梯级确定型水库群补偿调节的优化计算,得到了满意的成果。计算经验表明,水电站群补偿调节优化问题,应用递阶控制方法,比以前该课题所曾用的传统优化方法,所需计算机存储量少,在一定程度上克服了“维数灾”困难。
The planning of power system, the selection of reservoir parameters and the operation and operation of reservoirs require that the hydropower stations (reservoirs) should be optimally compensated and adjusted so as to improve the overall guaranteed output of the system and maximize the benefits of alternative capacity. However, with the increase of the number of library groups, the “dimensionality disaster” makes some traditional optimization methods difficult to solve. Therefore, this paper applies the principle and method of large-scale hierarchical control to ensure that the maximum output is the criterion, In the first stage, we apply the variable tolerance method to solve the sub-problem. In the first stage, we solve the sub-problem by using the variable tolerance method. In the first stage, Two applications of gradient method, so two iterative up and down the original problem to find the optimal solution. The method is applied to the optimization calculation of the compensation adjustment of the Dadu River cascade definite reservoirs, and the satisfactory result is obtained. Computational experience shows that the hydropower station group compensation adjustment and optimization problems, the application of hierarchical control method, than the previous traditional optimization methods used in this subject, the required computer storage is less, to some extent overcome the “dimensionality disaster” difficulties.