This paper proposes a fault recovery strategy for AC/DC hybrid distribution networks (HDNs) to restore critical loads in face of extreme events, in which the flexible topology with islanding partition is integrated for multi-source synergy. The island partition-based recovery model maximizes the active power of restored loads as the objective function while considering the power flow constraints, radial topology constraints, and multiple sourcesâ€™ constraints. Then, the proposed model is transformed into a mixed-integer second-order cone programming (MISOCP) formulation by linearization and convex relaxation, which can be solved effectively. Finally, the effectiveness of the proposed service restoration method is validated on a modified IEEE 33-node AC/DC test feeder.
Keywords fault recovery, island partition, AC/DC hybrid distribution network (HDN), mixed-integer second-order cone programming (MISOCP)