Reliability evaluation of distribution network based on sequential Monte Carlo simulation

In this paper, the reliability evaluation of distribution network is studied by using the sequential Monte Carlo simulation based on dual sampling. A reliability evaluation model of distribution network is established. The range influenced by fault is determined by the analysis method of node fault. And then, all kinds of reliability index are calculated. With Matlab programming, IEEE RBTS Bus 6 test system is evaluated to prove that the method in this paper is effective. Then the simulation analysis is carried out for the cases that whether there is a standby transformer in power distribution network, whether the circuit breaker is reliable and whether there is a contact switch between the two feeders. The results show that the reliability of distribution network system can be enhanced by adding the standby transformer and the contact switch and improving the reliability of the circuit breaker.