Title :
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
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;
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
DOI :
10.1109/APEC.1996.500445
