电网恢复初期考虑负荷波动性的负荷恢复优化

电网恢复初期，各个负荷的实际投入量及投入顺序对实现大停电后系统的快速恢复具有重要意义。采用差异和投影方法，在综合考虑负荷实际投入量的负荷波动性、负荷重要度和负荷距离机组的开关数量等因素的条件下对负荷排序，建立负荷恢复量最大的负荷恢复优化模型，并利用贪心算法求解，得到电网恢复初期综合最优且切实可行的负荷恢复方案。四川电网的仿真结果表明了所提方法的有效性和实用性。

Load Restoration Optimization in Initial Period of Power System Restoration considering load fluctuation

In the initial period of power system restoration, It is important for system to arrange the capacity and the sequence of loads that should be picked up. In this paper, fluctuation of load caused by the actual picked up load capacity and the important degree of load as well as numbers of switches between loads and black-start unit were considered, and the methods of differences and projections were used to order loads. Based on the results, a mathematical model was developed in view of maximizing the restored load capacity and greedy algorithm was adopted. A integrated optimal and feasible restoration program was obtained in the initial period of power system restoration. The effectiveness and practicality of the method were demonstrated by computer simulation performed on an actual restoration system in Sichuan Province in China.