Title :
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
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;
Conference_Titel :
Vehicle Power and Propulsion Conference (VPPC), 2010 IEEE
Conference_Location :
Lille
Print_ISBN :
978-1-4244-8220-7
DOI :
10.1109/VPPC.2010.5729106
