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Orderly Charging Model of Private Electric Vehicle based on Double Sequence Valley Period

In view of the problem that the power supply capacity of most residential communities can not meet the problem of gradually increasing the charging of electric vehicles(EVs), a method to meet the orderly charging control of large-scale private EVs in residential communities without increasing the existing distribution capacity of the residential area is proposed. This method is based on the analysis of the history of residential private EVs, the regularity of electricity consumption in residential districts and their historical data. Based on the peak-valley TOU(Time-Of-Use) electricity price guidance, the control method of the EV ordered charging is carried out by using the double sequence valley period. Finally, an example is used to verify the charging of EVs in a residential area in Lanzhou City. The results show that this method can effectively reduce the peak-valley load ratio of the grid load and the overload rate of the cell distribution network, so that the community's ability to accept EVs is significantly improved.