Multi-tier service restoration through network reconfiguration and capacitor control for large-scale radial distribution networks

A fast and effective service restoration algorithm allowing multi-tier or system-wide snitching and capacitor control actions is developed for large-scale, radial distribution networks. The service restoration problem is formulated as a constrained multiple-objective optimization problem, A solution algorithm designed to consider networks with predominately manual switches is developed which utilizes information calculated from three-phase power flow analysis to restore as much priority and total load as possible while requiring a minimal number of control actions and amount of geographic travel distance, Simulation results are presented for a 399 bus distribution network and compared to the ser,ice restoration algorithm from [8] which avoided multi-tier switching.