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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.
Aiming at the problem that the output result calculated by the output coefficient in the traditional method is difficult to meet the actual engineering requirements, the power generation model based on the expected output of the generating unit and the optimal distribution method based on the generating unit are established based on the unit characteristics of the power plant. At the same time, this paper makes a corresponding refinement simulation of the operation sequence of unit dam cascade hydropower station, manual output constraint and power station “one factory two transfers ”, etc. On this basis, considering the existence of tail water of Xiluodu-Xiangjiaba cascade hydropower station in Jinsha River basin Top off phenomenon of Xiangjiaba Hydropower Station to study the influence of operating water level on the output of cascade hydropower stations and to develop the optimal control level of Xiangjiaba Hydropower Station under different operating conditions so as to guide the economic operation of cascade hydropower stations so as to maximize the benefit of power generation.