Hybrid Algorithm Based Coordination Between Distribution Network Fault Reconfiguration and Islanding Operation

Based on the hybrid algorithm of binary particle swarm with differential evolution, a mathematical model of fault recovery is constructed and the reconfiguration, topology identification, isolated island partitioning, power flow calculation and objective function calculation are described in detail in the constructed model. A recovery strategy, which can rationally coordinate the distribution network reconfiguration with isolated island partitioning, is proposed, namely the isolated island partitioning is performed during the reconfiguration process, and by means of establishing boundary matrix of isolated islands it can be judged whether the isolated island could exist or not during the reconfiguration, and the outage-caused load obtained after the isolated island partitioning is regarded as a part of the objective function to make the results of reconfiguration and isolated island partitioning commonly impacting the global optimal solution, and make the two recovery modes possessing even better globality. The effectiveness of the proposed algorithm is validated by simulation results of IEEE 33-bus distribution system.