Engineering Commons^™

Dc-Ac Cascaded H-Bridge Multilevel Boost Inverter With No Inductors For Electric/Hybrid Electric Vehicle Applications, Zhong Du, Burak Ozpineci, Leon M. Tolbert, John N. Chiasson

Electrical and Computer Engineering Faculty Publications and Presentations

This paper presents a cascaded H-bridge multilevel boost inverter for electric vehicle (EV) and hybrid EV (HEV) applications implemented without the use of inductors. Currently available power inverter systems for HEVs use a dc–dc boost converter to boost the battery voltage for a traditional three-phase inverter. The present HEV traction drive inverters have low power density, are expensive, and have low efficiency because they need a bulky inductor. A cascaded H-bridge multilevel boost inverter design for EV and HEV applications implemented without the use of inductors is proposed in this paper. Traditionally, each H-bridge needs a dc power supply. The …