Reliability Evaluation Of Radial Distribution System With Distributed Generators

Recently, the photovoltaic and wind turbine generators have been more andmore connecting to distribution systems, and this would bring a certain trouble toreliability evaluation of traditional distribution networks. This thesis introduced thebasic concepts and methods for the reliability evaluation of distribution system. Theminimal path method was presented to evaluate the reliability of a system modifiedfrom the real Hodeida k16distribution system in Yemen and simulations wereconduced to analyze the impacts of some factors including fault repairing times andschemes on the test system reliability.The power output model, considering the influences by weather and time, wasestablished for photovoltaic and wind turbine distributed generators, respectively. Atest system modified from Hodeida k16distribution system in Yemen was presentedby adding photovoltaic and wind turbine distributed generators. The Monte Carlosimulation technique is employed for calculating the reliability index of the testdistribution network. Case studies show that both photovoltaic and wind turbinedistributed generations could improve the reliability of distribution network and theimprovement degree varies with the season.