小型水电站水库优化调度新模型探讨

针对目前水电站水库优化调度计算中 ,电站出力系数和水头损失近似取值或计算导致优化计算结果并非真正最优的问题 ,提出了小型水电站水库优化调度新模型 .该模型以水库优化调度模型为主模块 ,以水电站厂内优化运行为子模块 .在用动态规划求解主模块过程中 ,调用水电站厂内优化运行子模块 .由于子模块以机组的实际动力特性为依据 ,而且将电站引水系统和尾水系统由于机组组合方式不同所出现的不确定因素纳入优化设计之中 ,可有效地解决电站出力系数和水头损失近似计算的问题 ,且计算结果更加准确、可靠

Discussion on a New Optimal Operation Model of the Small-scale Hydroelectric Station

In view of the approximate calculation hydroelectric station output power coefficient and head of water loss leading to the fact that the optimal reservoir operation result is not optimum solution, a new optimal operation model of small-scale hydroelectric station is proposed. In this model, the optimal reservoir operation model is regarded as main pattern and the power plant optimal operation model is regarded as sub-pattern. In the course of solving the main pattern by dynamic programming, the sub-pattern has been moved. On the basis of actual power feature of unit, this method brings the indefinite factor arising from different combination way of diversion and tail-race system of hydropower station into design. And the calculation results turn out to be more accurate and reliable