Grid Peak Load Shaving Method Considering EV Charging Uncertainty Based on Interval Optimization

Abstract With the rapid development of electric vehicles, more and vehicles are entering people’s lives. However, large-scale access to grid brings harm stability operation, problem how guide staggered charging needs be solved. In this paper, we consider travel characteristics three different types EVs: private cars, buses, cabs, set up a time-of-use tariff EV users charge reasonably, thus reducing impact load on by cutting peaks filling valleys. Since EVs is an interval value, paper introduces optimization theory, establishes optimistic model pessimistic model, calculates upper lower bound respectively, finds out value after peak valley reduction.