On-Board AC Charging Topology Integrated with Electric Vehicle Motor Drive System

Md Khalid Azam, Aquib Ahmed, Mohammad Islam, Afsana Dristy, Ashraf Siddiquee, Yilmaz Sozer, Mithat Kisacikoglu

Research output: Contribution to conferencePaper


On-board AC charging is a convenient and widely adopted method for recharging electric vehicles (EVs) directly from standard alternating current (AC) power sources. This paper presents a novel topology for AC charging of EVs that utilizes EV 3-phase electric machine windings as the input inductors, thus eliminating the requirement for bulky grid interfacing inductors and resulting in a compact and cost-effective integrated motor drive and charger system. The proposed approach leverages the motor windings and parallel operating half-bridge inverter during the charging process by interconnecting the inverter phases with the motor windings in a mechanically interleaved and electrically paralleled manner. The implementation of this unique and innovative idea, achieved through precise control and arrangement of the motor winding as a series inductor, successfully eliminates the possibility of unintended motion of the electric machine during the charging process.
Original languageAmerican English
Number of pages5
StatePublished - 2024
EventIEEE Applied Power Electronics Conference - Long Beach, CA
Duration: 25 Feb 202429 Feb 2024


ConferenceIEEE Applied Power Electronics Conference
CityLong Beach, CA

NREL Publication Number

  • NREL/CP-5400-89767


  • electric machine
  • electric vehicle
  • EV charging
  • grid interface


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