基于停运连续潮流和双向潮流追踪的潮流解恢复控制方法

针对导致潮流方程无解的支路型故障，提出了一种基于潮流追踪的潮流解恢复控制策略。首先将故障支路用支路两端节点的等值功率源替代，从网络中移去故障支路。减小等值功率直到极限点，极限点处剩余的等值功率量是超出故障后网络传输能力的功率量，将其作为控制裁减量。然后采用潮流追踪算法，将所得裁减量向发电机和负荷节点分配，以确定减负荷和减发电的节点以及各自的裁减量。仿真结果验证了所提方法的有效性。

Power Flow Solvability Recovery Control Method Based on Outage-continuation Power Flow and Bi-directional Power Flow Tracing

In the light of branch outage resulting in power flow insolvability， a control strategy for power flow solvability recovery based on power flow tracing is proposed. The outage branch is replaced by two equivalent power sources at the terminals， and the branch is removed from the network. The equivalent power sources are reduced until the limit point is reached. The residual power at the limit point is the power beyond the transfer capacity of the post-contingency network and is taken as the shedding amount. Then the power flow tracing method is utilized to find the locations and quantities of load shedding and generation tripping. The validity of the method is verified by simulation results.