Title :
Novel random PWM schemes with weighted switching decision
Author :
Hui, S.Y.R. ; Sathiakumar, S. ; Sung, K.K.
Author_Institution :
Sydney Univ., NSW, Australia
Abstract :
A new random pulse-width modulation (RPWM) scheme which includes a weighted decision switching process has been developed and tested for inverter fed AC drives. The scheme combines the advantages of the deterministic nature of the standard PWM schemes and the nondeterministic, spread spectral characteristic of RPWM schemes. Test results have confirmed the improved spectral performance of the proposed schemes over a standard RPWM scheme.
Keywords :
AC motor drives; PWM invertors; harmonics; switching circuits; inverter fed AC drives; nondeterministic characteristic; random pulse-width modulation scheme; spread spectral characteristic; weighted switching decision;
Conference_Titel :
Power Electronics and Variable Speed Drives, 1996. Sixth International Conference on (Conf. Publ. No. 429)
Print_ISBN :
0-85296-665-2
DOI :
10.1049/cp:19960939
