Charging mode selection method based on multi-objective optimization for electric private car

The invention discloses a charging mode selection method based on multi-objective optimization of an electric private car. The method comprises the following steps: considering the electric car size, electricity price system, battery features, operation characteristics of the electric car, charging mode and other factors to build a charging load model for the electric car under different charging modes; building a charging mode selection multi-objective model of the electric car according to three factors, namely, the influence of different charging modes on a power grid, overall cost for one charging of the electric car, the cycle life of a power battery; determining multi-objective functional coefficient; solving the pareto optimal of the multi-objective functions by the genetic algorithm, so as to obtain the optimal combination mode of energy supply of the electric car. With the adoption of the method under typical daily load curve of national grid in summer, the valley-to-peak difference of the system, the use cost, the convenience, the cycle life of the battery and the like reach the comprehensive optimal by the charging mode that takes general charging as the major and battery replacing as the second.