隔河岩和高坝洲梯级水电站水库联合调度方案研究

发电量和保证出力是水库调度的两个对立目标,如何协调发电量和保证出力,是制定水库群联合调度方案的关键。本文对隔河岩和高坝洲梯级水电站水库联合调度,以发电量和保证出力为目标函数,建立了多目标联合优化调度数学模型,并提出了求解多目标优化模型最优解的交互式决策偏好系数法。此方法首先应用约束法将多目标优化模型转换成多个单目标优化模型,采用动态规划法求单目标优化模型的解,得到多目标优化数学模型的不劣解集,在此基础上,提出了一个评价多目标方案的决策偏好系数,并以决策偏好系数为依据,从不劣解集中选择多目标优化数学模型的最优解。应用此方法求出了隔河岩和高坝洲梯级水电站水库联合调度的最佳方案。

Study on integrated operation of cascade hydropower stations

A multi-objective optimization model for the integrated operation of cascade hydropower stations is established,in which two objective functions including maximization of annual electricity and maximization of firm power are involved.A method for solving this model is presented.The method transfers the multi-objective optimization into a number of single models constituting the no-inferior solution set of the model.A decision preference coefficient is derived from the no-inferior solution set.This method is applied to obtain the optimal operation scheme of the integrated operation of Geheyan Hydropower Station and Gaobazhou Hydropower Station.