Switching Device-Cognizant Sequential Distribution System Restoration

This paper presents an optimization framework for sequential reconfiguration using assortment of switching devices and repair process in distribution system restoration. Compared to existing studies, this considers types, capabilities operational limits different devices, making it applicable practice. We develop a novel multi-phase method find the optimal operation various faulted areas. consider circuit breakers, reclosers, sectionalizers, load breaker switches, fuses. The problem is decomposed into two mixed-integer linear programming (MILP) subproblems. first subproblem determines network topology estimates number steps reach that topology, while second generates sequence operations coordinate switches. For repairing faults, we design MILP model dispatches crews clear faults replace melted After clearing fault, update by generating new operations, continues until all are cleared. To improve computational efficiency, reduction algorithm developed group line sections, such only switchable sections present reduced network. proposed validated on IEEE 123-bus 8500-bus systems.