Research On The Model For Distribution Network Reliability Evaluation Based On Sequential Monte-Carol Simulation

This paper adopts sequential Monte Carlo simulation technique and time-varying load model to assess multi-fault reliability of typical distribution network considering line capacitance constraint and power flow of distribution system.During the repair time of elements of the distribution networks, because there are some open connecting switches, service restoration reconfiguration can be carried out in order to restore outage areas service. In the term of restoration reconfiguration, it is necessary to assure that all lines current and nodes voltage are in the limits of safety. Loss of load cost, energy not severed, net loss and loss of load duration, are considered when deciding which load should be curtailed. Loss of load cost, energy not severed, net loss and loss of load duration, are considered when deciding which load should be curtailed.Therefore, the model presented in this paper is more accurate to simulate faults of distribution network and the outage situation of load points, and reliability risk indices and reliability worth indices can be calculated according to different dispatching strategy. The model is proved valid and effective through the application on IEEE-RBTS Bus4 system.Further more this paper simulates distribution networks with complex subfeeders and completes the program of evaluating single-fault reliability of that networks. Model is proved accurate by comparing the calculation result of IEEE-RETS Bus6 testing system using analytical method to using the mode this paper presented.