Abstract

This study deals with the rapid charger which is the mid-type between the slow and fast chargers in the aspect of charging time. In its functions, it can perform the Active Power Filter(APF) function without changing the topology besides the charging function. APF function is performed in accordance with the battery and charger of the electric car or checking the real time State of Charge(SOC) information of the battery obtained by Battery Management System(BMS). In addition, to perform the charging and APF functions, this paper proposes the driving mode selection algorithm. Based on the proposed mode selection algorithm, if it performs the APF mode, it can compensate the harmonic of the system and improve the using rate of each charger effectively except the ones performing the charging mode among the chargers located in a line. The operation of the charger that has the active power filter and the mode selection algorithm of this study are verified by the simulation and experiment test.

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