A Nine-Switch-Converter-Based Integrated Motor Drive and Battery Charger System for EVs Using Symmetrical Six-Phase Machines

作者：Diab Mohamed S^*; Elserougi Ahmed A; Abdel Khalik Ayman S; Massoud Ahmed M; Ahmed Shehab

来源：IEEE Transactions on Industrial Electronics, 2016, 63(9): 5326-5335.

DOI：10.1109/TIE.2016.2555295

• Grid-connected vehicles
• integrated on-board chargers
• nine-switch converter (NSC)
• symmetrical six-phase machines

This paper presents a new configuration for integrated on-board battery chargers of electric vehicles (EVs) incorporating symmetrical six-phase machines. The configuration proposes an exclusive utilization of a nine-switch converter (NSC) along with the machine windings during both propulsion and charging of EVs. The proposed configuration has the advantage of employing a reduced number of components in both the EV (on-board) and charging station (off-board), with the privilege of avoiding machine electromagnetic torque production during charging/vehicle-to-grid (V2G) mode of operation. During charging/V2G mode, the NSC is turned into a conventional three-phase pulse width modulation rectifier and is directly connected to the three-phase mains through the machine windings. Conventional three-phase transformers can be employed for galvanic isolation. Switching between propulsion and charging modes is carried out using a simple hardware reconfiguration. Control schemes for both propulsion and charging/V2G modes are elaborated, along with the principles of operation of the NSC. Experimental results are provided to validate the theoretical deductions for the different operating modes.

• 出版日期2016-9