A DSP controlled variable-frequency resonant-commutated converter

Author

Chickamenahalli, Shamala A. ; Liu, Jun ; Suryakumar, Mahadevan

Author_Institution

Intel Corp., Chandler, AZ, USA

Volume

15

Issue

3

fYear

2000

fDate

5/1/2000 12:00:00 AM

Firstpage

447

Lastpage

455

Abstract

Features of a three-phase resonant-commutated variable-frequency converter applicable in a variety of industrial applications are presented. Minimization of switching losses and hence usage of naturally commutated devices as accomplished by resonant commutation of the converter is highlighted. Design and development of the TMS320C30 DSP based controller is described. Strategies developed for switching of converter devices in relation to the resonant-commutated link are discussed. Results from Pspice simulation studies of the converter are presented. Experimental results while the three-phase experimental model of the converter supplied passive loads are enclosed and observations summarized. Comparison of results confirms potential applicability of the converter in adjustable speed drive, induction heating, welding and active filter applications

Keywords

PWM invertors; PWM power convertors; commutation; digital control; digital signal processing chips; rectifying circuits; resonant power convertors; switching circuits; PWM inverter; PWM rectifier; Pspice simulation studies; TMS320C30 DSP based controller; active filter applications; adjustable speed drive; converter devices switching; induction heating; industrial applications; naturally commutated devices; passive loads; switching losses minimisation; three-phase resonant-commutated converter; variable-frequency resonant-commutated converter; welding; Active filters; Digital control; Digital signal processing; Frequency conversion; Pulse width modulation inverters; Resonance; Switching converters; Switching loss; Variable speed drives; Welding;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/63.844504

Filename

844504