梯级水电站群优化调度控制研究及解决方案

研制了分层的乌江梯级水电站群优化调度控制系统,由3个子系统组成:水情测报系统、水库调度系统和梯级远程集中监控系统。将调度控制的优化分解为3个子系统的优化控制。运用了梯级最大发电量、梯级最大蓄能量和梯级各电站最小库水位越限程度3个优化准则,并针对各个优化准则建立了相应的数学模型。在对适用于梯级水电站群优化调度计算的各类优化算法进行分析并结合实际运用情况的基础上,提出应优先考虑采用改进动态规划算法求解梯级水电站群优化调度问题。实际运行情况表明,优化调度控制大幅提高了乌江梯级水电站群的经济效益和运行管理水平。

Research and solution of optimal dispatch control of cascaded hydropower stations

A hierarchical optimal dispatch control system is developed for Wujiang cascaded hydropower stations,which has three subsystems:hydrological metering and forecast system,reservoir dispatch system and centralized remote supervisory system. Three optimization rules are applied:maximum generation,maximum energy reservation and minimum level violation,for which three mathematical models are established. Based on the analysis of different dispatch optimization algorithms for cascaded hydropower stations and combined with the real applications,the advanced dynamic programming algorithm is recommended. Its operation shows that the developed optimal dispatch control system has enhanced the management level and economic effectiveness of Wujiang cascaded hydropower stations.