An integrated split-phase dual-inverter permanent magnet motor drive and battery charger for grid-connected electric or hybrid vehicles
Paper in proceeding, 2012

Multi-phase machines have some features such as reduced power electronic components rating, reduced torque ripple, and increased reliability that make them a favorable option in some applications, for instance in the area of highpower drive systems. A combined motor drive and battery charger based on a split-phase interior permanent magnet synchronous motor and dual inverters is proposed and explained in this paper. By connecting the two motor winding star points to a single-phase ac supply, it is possible to charge the battery through the inverters from a commonly available single-phase outlet. In this way, a separate battery charger is not needed. A double dq model of the motor is presented and based upon a maximum torque per ampere control strategy is used for the traction mode. To eliminate the look up table to obtain the reference value of the current q component from the torque error, a linearized version of the controller is used that is explained. The system operation in the charging mode including the equivalent circuit and inverter control is also explained. Moreover, simulation results are provided to verify the proper operation of the proposed system.

dual inverters

grid-connected vehicles

integrated motor drive and battery charger

Split-phase permanent magnet motor


Saeid Haghbin

Chalmers, Energy and Environment, Electric Power Engineering

Torbjörn Thiringer

Chalmers, Energy and Environment, Electric Power Engineering

Ola Carlson

Chalmers, Energy and Environment, Electric Power Engineering

2012 20th International Conference on Electrical Machines, ICEM 2012, Marseille, 2 - 5 September 2012

978-1-4673-0142-8 (ISBN)

Subject Categories

Other Electrical Engineering, Electronic Engineering, Information Engineering





More information