Title :
Efficiency improvement and evaluation of floating capacitor open-winding PM motor drive for EV application
Author :
Di Pan ; Kum-Kang Huh ; Lipo, Thomas A.
Author_Institution :
Electr. Machines Lab., GE Global Res. Center, Niskayuna, NY, USA
Abstract :
An Open-Winding machine drive with a floating capacitor attached to one of the inverters has been demonstrated to be capable of extending the operating space of permanent magnet machines under a given power supply voltage limit. This paper applies this open-winding motor drive topology to electric vehicle application. The properties of this topology including sizing and efficiency are further investigated. A new voltage distribution scheme is proposed to optimize the inverter efficiency. Practical driving cycles, vehicle model and traction motor model are used in this study.
Keywords :
electric vehicles; invertors; motor drives; permanent magnet motors; power supplies to apparatus; EV application; driving cycles; efficiency improvement; electric vehicle application; floating capacitor open-winding PM motor drive; inverter efficiency; operating space; permanent magnet machines; power supply voltage limit; sizing; traction motor model; vehicle model; voltage distribution scheme; Capacitors; Inverters; Motor drives; Permanent magnet motors; Synchronous motors; Topology; Traction motors;
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2014 IEEE
Conference_Location :
Pittsburgh, PA
DOI :
10.1109/ECCE.2014.6953484
