中文摘要：

针对传统方法中利用出力系数计算的出力结果难以满足工程实际要求的问题,结合电站的机组特性,建立基于机组预想出力方式和基于机组最优分配方式下的精细化发电模型,并对溪洛渡-向家坝梯级电站的机组开机顺序、人工出力约束和电站＂一厂两调＂等运行状况进行相应精细化模拟.在此基础上,考虑金沙江流域溪洛渡-向家坝梯级电站存在尾水顶脱现象,研究向家坝电站运行水位对梯级电站出力的影响,制定不同运行工况下的向家坝电站最优控制水位,以指导梯级电站的经济运行,实现发电效益最大化.

英文摘要：

The traditional method of calculating power output using efficiency coefficient is difficult to satis- fy the requirements of practical problems. Considering the characteristics of power plant units, the refine- ment generation models based on the units expected output and the optimal allocation of units are estab- lished respectively. The proposed models are applied to Xiluodu-Xiangjiaba cascade hydropower plants un- der different operating conditions. Then, taking into account the water level overlap of the cascade sta- tions, research on the optimal control water level of Xiangjiaba is conducted to achieve the maximum out- put of the cascade. The results can guide the economic operation of cascade hydropower plants.