Assessing Impacts of EV Parking Lots on Distribution System Reliability with Consideration of User Behavioral Uncertainties

摘要

In recent years, the popularization of electric vehicles (EVs) brings about the spring-up ofchargeable parking lots (PLs). In practice, since a PL system with hundreds of integrated EVsmay act as either a controllable load during the charging period or an alternative distributedenergy resource for the grid during the discharging period, it could provide various technicaland economic benefits which can be exploited by the future energy systems. Under thisbackground, this paper carries out a study to analyze the potential contribution of EV PLs forthe reliability of future distribution grids. Reliability indices are calculated using a stochasticgeneration capacity model of a PL together with the load and the component outage data of thedistribution feeder. A compound algorithm based on sequential Monte-Carlo simulations isemployed to implement the entire evaluation. Numerical results show that the appropriateutilization of PL energy storage capability can largely improve the supply adequacy ofdistribution systems, which proves the effectiveness of the proposed method.