基于联络矩阵法的黑启动分区与机组启动顺序选择方案

针对黑启动过程中合理分区的重要性,考虑黑启动过程中线路恢复成功率与机组启动成功率,提出了机组恢复期望功率这一黑启动恢复指标。首先利用所提指标结合线路恢复时间建立节点分区判定目标函数,初步确定各待恢复节点所属分区;然后利用分区子系统期望恢复功率与分区网架结构形成时间建立新的分区目标函数,利用改进的模拟退火法求解该目标函数以实现黑启动分区的全局优化;最后得出了待恢复机组所属分区以及各分区内机组恢复顺序,并找到了所有待恢复机组的最优黑启动路径。

Investigation of Black Start Sectionalizing Method and Generator Start up Sequence Based on Contact Matrix Method

Aiming at the importance of reasonable black start sectionalizing, considering the successful rate of energizing lines and generators, this paper proposes a new index using contact matrix method: generator expected restoration power (GERP). Node sectionalizing criterion function is formed based on GERP and the energizing time of the lines. The criterion function can determine each of nodes belonging to which section preliminary. Then, the partition GERP and the skeleton network are used to obtain the total time for establishing a new sectionalizing optimization function. An improved simulated annealing method is employed to realize the final optimization of the problem. Generator start up sequence and the optimal black start routine for none black start units are obtained through this method.