A Novel MILP Formulation for Fault Isolation and Network Reconfiguration in Active Distribution Systems

This paper proposes a novel mixed-integer linear programming (MILP) model for distribution systems to respond to contingencies by forming multiple microgrids (MGs) energized by dispatchable distributed generators (DGs). The MILP model can model the outage propagation during faults, and minimize the load shedding while satisfying the radial topology and other operation constraints by controlling automatic switches and dispatchable DG outputs, thus, minimizing the outage areas. Case studies on a modified IEEE 123-bus test feeder are implemented to illustrate the effectiveness of the proposed MILP model.