Title :
A new resonant DC link/boost converter topology applied to extended speed operation of a brushless DC machine
Author :
Tuckey, A.M. ; Patterson, D.J.
Author_Institution :
Centre for Energy Studies, Northern Territory Univ., Darwin, NT, Australia
Abstract :
Although the brushless DC machine (BDCM) is a strong contender for use in an electric vehicle (EV) drive system due to its size and efficiency, it has one major drawback; its maximum speed is restricted such that the back EMF is always less than or equal to the battery voltage. This paper presents the use of the well established actively clamped resonant DC link inverter (ACRLI) to control a BDCM in an EV, with a modification to allow boost operation. With the addition of one diode and one switch the average output voltage of the converter can be boosted. A hard-switched current control method is presented in this paper which allows full regenerative operation of the BDCM in both normal and boosted modes
Keywords :
DC motor drives; brushless DC motors; electric current control; electric vehicles; invertors; machine control; resonant power convertors; switching circuits; actively clamped resonant DC link inverter; average output voltage; battery voltage; boost operation; brushless DC machine; diode; electric vehicle drive; extended speed operation; full regenerative operation; hard-switched current control method; maximum speed restriction; resonant DC link/boost converter topology; switch; Batteries; DC machines; Diodes; Electric vehicles; Inverters; Resonance; Switches; Switching converters; Topology; Voltage;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1998. APEC '98. Conference Proceedings 1998., Thirteenth Annual
Conference_Location :
Anaheim, CA
Print_ISBN :
0-7803-4340-9
DOI :
10.1109/APEC.1998.647706
