Electric Vehicle (EV) Charging Management and Relieve Impacts in Grids

This paper proposed a method to manage electric vehicles charging behaviors in order to reduce its effects in grids. The paper summarized the charging patterns of electric vehicle users, based on charging profile observations from advance metering system at first. The method distinguished supervision-free user patterns and established a novel schedule strategy to reduce grid peak power demand. The strategy is based on ‘valley filling’ concept while also consider cutting down the total interference time of users' charging process. The general grid impacts of vehicle charging before and after the adoption of the proposed strategy is simulated and compared. The results shown that the proposed method is able to relieve grid impact and thereby increase the EVs service capability of distribution grids.

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