【摘要】 为满足水电站优化运行计算在求解时间和求解精度上的要求,提出了基于水位指数规律变化假设的下游不稳定流计算方法及计算系数的确定方法.该计算方法比较简单,且有理论根据.分析了下游不稳定流对水电站最优运行方式的影响,推导了水、火电站联合优化运行时的等微增率原则公式,讨论了附增当量的物理意义及影响因素,最后提出了考虑下游不稳定流影响时的水电站运行方式的最优化原则和计算方法.更多还原

【Abstract】 In order to meet the requirements of the optimal operation and computation of hydropower on the solving time and the accuracy,the calculation method of downstream unsteady flow based on hypothetic water level index rule and modulus was proposed. This calculation method is relatively simple,and there is a theoretical basis. The effects of downstream unsteady flow on the optimal operation mode of hydropower stations were analyzed and the equal incremental principle for the hydropower,thermal power station joint optimization run was derived,and the physical meaning and the influencing factors of attached modulus were elucidated. Finally,the principle and calculation method of optimal operation mode of the hydropower plant which considers the downstream unsteady flow were proposed.更多还原