A model to estimate the effect of DC bus voltage on HEV powertrain efficiency

Author

Thompson, Mark G. ; Hoff, Craig J. ; Gover, James E.

Author_Institution

Kettering Univ., Flint, MI, USA

fYear

2010

fDate

1-3 Sept. 2010

Firstpage

1

Lastpage

5

Abstract

The efficiency of the electric drive system in a Hybrid Electric Vehicle plays a significant role in overall hybrid propulsion system efficiency and influences design choices for other mechanical components in the system. Increasing the DC bus voltage is thought to improve overall powertrain efficiency. In this paper, models are developed to predict the effect of DC bus voltage on the power loss in a PWM inverter motor drive and a brushless DC electric machine. The models indicate that a higher bus voltage will improve powertrain efficiency in some, but not all, operating conditions.

Keywords

PWM invertors; brushless DC motors; electric propulsion; hybrid electric vehicles; motor drives; power transmission (mechanical); DC bus voltage effect estimation; HEV powertrain efficiency; PWM inverter motor drive; brushless DC electric machine; electric drive system; hybrid propulsion system efficiency; mechanical components; power loss; Hybrid electric vehicles; Hysteresis motors; Insulated gate bipolar transistors; Inverters; Pulse width modulation; Torque; Hybrid Electric Vehicle; IGBT; conduction loss; drivetrain; efficiency; inverter; iron loss; switching loss; windage loss;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicle Power and Propulsion Conference (VPPC), 2010 IEEE

Conference_Location

Lille

Print_ISBN

978-1-4244-8220-7

Type

conf

DOI

10.1109/VPPC.2010.5729106

Filename

5729106