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以长江中上游15座骨干水库组成的大规模混联水库群联合发电优化调度问题作为研究对象,提出一种新的优化控制方法,其思路是:从流域梯级大规模电站群整体优化角度出发,以总发电量最大为目标建立大规模水库群分区优化调度模型,根据电站所属流域相对位置以及其水力补偿关系进行虚拟分区,以控制区内电站群子系统为对象进行分区优化控制;在此基础上,采用约束廊道法有效解决长期发电优化调度问题中的多约束耦合问题.将该方法应用到长江中上游大规模混联水库群联合发电优化调度问题的求解中,结果表明:所提出的方法求解精度高、时效性好,具有较强的工程实用性,为求解高维、复杂梯级水库群优化调度问题提供了一种新思路.
Taking the 15 backbone reservoirs in the middle and upper reaches of the Yangtze River as an example, this paper proposes a new optimal control method. The idea is: from the view of overall optimization of cascade large-scale hydropower stations, Based on the total generation capacity, a large-scale reservoir group optimization scheduling model is established. Based on the relative position of the hydropower station and its hydraulic compensation relationship, the virtual partitioning is carried out to optimize the control of the sub-system in the district. , The constrained corridor method is used to effectively solve the multi-constraint coupling problem in the long-term generation optimal scheduling problem.This method is applied to solve the optimal generation scheduling problem of the large-scale mixed reservoir group in the middle and upper reaches of the Yangtze River. The results show that: The method has high solution accuracy, good timeliness and strong engineering practicability. It provides a new idea for solving the optimal scheduling problem of high-dimensional and complex cascade reservoirs.