Abstract

The disorderly access of large-scale electric vehicles to the distribution network raises the grid's peak load. Firstly, by analyzing the driving characteristics of electric vehicles, this paper constructs the minimum load peak objective function according to the constraints of electric vehicle power demand and battery state of charge.By solving the genetic algorithm, the power grid load curve before and after optimization is obtained, and the changes in the power grid load curve at different peak and valley electricity price times and under different user response degrees are analyzed, and the load curve of the electric vehicle is compared with the load curve when the electric vehicle is charged in disorder, and the analysis is discussed. The consequence of electric vehicle charging mode and user responsiveness on peak grid load is evaluated.

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