Title :
Cost effective PAM inverter for 42V hybrid electric vehicles (HEV)
Author :
Kim, Jun-Hyung ; Kang, Hyun-Soo ; Lee, Byoung-kuk ; Hur, Jin
Author_Institution :
Sch. of Inf. & Commun. Eng., Sungkyunkwan Univ., Suwon
Abstract :
In the conventional motor drive system, as sixswitch inverter topology with DC battery for the 42V HEV, the current and torque ripples become high during start-up and low speed region. In this paper, to overcome these shortcomings, a novel PAM inverter is proposed, which consists of a two-switch buck-boost converter and a four-switch inverter. In addition, as the current and torque ripples are generated by a voltage difference between back EMF and battery voltage, these ripples could be reduced according to the controlled DC-link voltage according to the motor speed.
Keywords :
brushless DC motors; hybrid electric vehicles; invertors; pulse amplitude modulation; DC-link voltage control; PAM inverter; brushless DC motor; four-switch inverter; hybrid electric vehicles; pulse amplitude modulation; two-switch buck-boost converter; voltage 42 V; Batteries; Brushless DC motors; Control systems; Costs; DC motors; Heat sinks; Hybrid electric vehicles; Inverters; Torque; Voltage control; Brushless dc motor; Hybrid electric vehicle (HEV); Pulse amplitude modulation (PAM) inverter; four-switch inverter; two-switch buck-boost converter;
Conference_Titel :
Vehicle Power and Propulsion Conference, 2008. VPPC '08. IEEE
Conference_Location :
Harbin
Print_ISBN :
978-1-4244-1848-0
Electronic_ISBN :
978-1-4244-1849-7
DOI :
10.1109/VPPC.2008.4677605
