Optimisation of microprocessor-based random PWM schemes for power inverters with low switching frequencies

Author

Hui, S.Y.R. ; Sathiakumar, S.

Author_Institution

Dept. of Electr. Eng., Sydney Univ., NSW, Australia

Volume

1

fYear

1996

Firstpage

214

Abstract

The low switching frequency performance of logical random PWM methods is examined under various modulation indexes and sampling frequencies. The optimal operating conditions for each logical random PWM scheme are highlighted. The random PWM schemes provide near ideal harmonic-free voltage waveforms and are suitable for both MOSFET and IGBT inverters

Keywords

DC-AC power convertors; PWM invertors; bipolar transistor switches; field effect transistor switches; harmonic distortion; insulated gate bipolar transistors; microcomputer applications; optimal control; power MOSFET; power bipolar transistors; power field effect transistors; power semiconductor switches; power system harmonics; switching circuits; voltage control; IGBT; MOSFET; harmonic-free voltage waveforms; microprocessor control; modulation indexes; optimal operating conditions; power inverters; random PWM schemes; sampling frequencies; switching frequency; Acoustic noise; Distortion measurement; Insulated gate bipolar transistors; Microprocessors; Power system harmonics; Pulse width modulation; Pulse width modulation inverters; Random number generation; Sampling methods; Switching frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 1996. APEC '96. Conference Proceedings 1996., Eleventh Annual

Conference_Location

San Jose, CA

Print_ISBN

0-7803-3044-7

Type

conf

DOI

10.1109/APEC.1996.500445

Filename

500445