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Power Distribution System Outage Management by Natural Disasters with Optimizing of Resource and Restoration

Abstract:

High probability and low impact events (HILP), such as natural disasters, represent a constant hazard for power distribution systems (PDS), the impact of these events on electri-cal infrastructure may cause considerable socio-economic losses. This paper presents a novel methodology for optimal PDS outage management due to natural disasters through the optimization of available resources of the distribution company and mobilization of repair crews to maximize the energy supplied and minimize the recovery time of the system. The methodology includes a mixed-integer linear programming (MILP), considering system operation constraints with a model of DC optimal power flow and constraints of resource emplacement and mobilization of repair crews. Crews are dispatched considering traveling time and repair time. The proposal was applied to the IEEE test feeder of 34 nodes, considering earthquakes, in which the vulnerability assessment of primary substations and reinforced concrete electrical poles are carried out. The results show that the energy not supplied for the system under study is reduced when our optimal model is considered compared to recovery using traditional expert criteria.