Speed control of a brushless DC motor using pulse density modulation and MCTs

Author

Bell, J. Brett ; Nelms, R.M.

Author_Institution

Dept. of Electr. Eng., Auburn Univ., AL, USA

fYear

1994

fDate

13-17 Feb 1994

Firstpage

356

Abstract

Speed control of a brushless DC motor has been accomplished using pulse density modulation (PDM) in a soft-switched inverter. The implementation of zero voltage switching and pulse density modulation enables increased switching frequency, which allows more precise inverter control. Also MOS-controlled thyristors (MCTs) are used as the power semiconductor devices in the inverter, taking advantage of the newest technology in semiconductor switching. An experimental system has been constructed in the lab and results are presented illustrating the use of PDM in speed control for a brushless DC motor

Keywords

DC motors; invertors; machine control; machine testing; pulse modulation; semiconductor switches; switching circuits; thyristor applications; velocity control; MCT; MOS-controlled thyristors; PDM; brushless DC motor; inverter; pulse density modulation; semiconductor switching; soft switching; speed control; switching frequency; zero voltage switching; Brushless DC motors; Power semiconductor devices; Power semiconductor switches; Pulse inverters; Pulse modulation; Switching frequency; Thyristors; Velocity control; Voltage control; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 1994. APEC '94. Conference Proceedings 1994., Ninth Annual

Conference_Location

Orlando, FL

Print_ISBN

0-7803-1456-5

Type

conf

DOI

10.1109/APEC.1994.316377

Filename

316377