Research on the Reliability of Power Distribution System with Micro Grid by Considering Spatial Load

Abstract

Traditional electronic vehicle models neglect the spatial movement of the EVs, which consequently, reduces the accuracy of the distribution network reliability calculation. This paper analyzes the travel rules of private passenger cars in cities, by selecting the key indicators, to establish a time-series EV travel probability model. Meanwhile, the charging and discharging model of the electric vehicle is established by analyzing the charge and discharge constraints of the electric vehicle models. Moreover, the Monte Carlo simulation was used to generate faults. The post-fault analysis method of the distribution network was applied to the improved distribution network model, and the effect of EV on the reliability of the distribution network was analyzed using the particle swarm algorithm. It is concluded that the EV travel probability model can better simulate the EV travel patterns in real life; applying V2G technology in the distribution network can increase the reliability of the micro grid with DG.