Towards a More Resilient Restoration Process: PMRM Based Transmission Network Reconfiguration Strategy

In recent years, power system outages caused by extreme events have occurred frequently all over the world, warning people that blackouts are not far away from us. It is of great importance to make a robust scheme for the efficient and successful restoration of system function. Secondary faults or contingencies are rarely considered in the existing research on power system restoration. In view of that, firstly, the necessity of considering the impact of contingency in transmission network reconfiguration scheme is discussed. Then, based on Partitioned Multi-Objective Risk Method (PMRM), a novel resilience index considering the differential influence of contingencies is proposed. Further, an optimization strategy of network reconfiguration considering the active improvement of resilience is proposed, and a practical solving model based on window rolling mechanism is established. The effectiveness of the proposed method is verified by the IEEE 118-bus system.