大规模水电站群短期优化调度方法Ⅲ:多电网调峰问题

Short-term optimal operation methods of large-scale hydropower plants Ⅲ. Solution method of peak load regulation for multiple power grid

随着我国电网和水电规模的扩大,水电系统多电网调峰的问题越来越突出。以南方电网的水电系统为背景,构建了跨流域巨型水电站群多电网调峰优化调度模型。结合凝聚函数法和多目标模糊优选法建立替代优化目标,提出逐次逼近的关联搜索算法来满足求解过程中大量的时间耦合型约束。实际运行过程表明,本文提出的模型和求解方法能够得到高效的、满足实际工程中需求的应用结果,是一种切实可行的水电多电网调峰优化调度方法。

With the development of the scale of power grids and hydropower systems in China, the problem of peak load regulation for multiple power grid will be more and more prominent. On the background of hydropower system of China Southern Grid （CSG）, a peak load regulation model for multiple power grid with large scale hydropower systems is proposed. Aggregated function and multi-objective fuzzy optimization model are adopted to establish a fungible objective. A successive associated search method is proposed to address the problem of many time coupling constraints. Practice operation study shows that the method yield practicable results, and is feasible to peak load regulation problems for multi power grid.