Title :
Random pulse width modulation techniques for converter fed drive systems-a review
Author :
Trzynadlowski, Andrzej M. ; Blaabjerg, Frede ; Pedersen, John K. ; Kirlin, R. Lynn ; Legowski, Stanislaw
Author_Institution :
Nevada Univ., Reno, NV, USA
Abstract :
A review of the state of the art in RPWM (random pulse width modulation) theory and practice is presented. Topics covered include principles of RPWM, means of randomization, a review of the existing RPWM techniques, power spectra, implementation issues, and documented effects of RPWM on electric drive systems. A number of RWPM strategies have been reported, and a beneficial impact on acoustic noise and vibration has been unamiously agreed upon. Published studies have proven that significant improvement of the acoustic noise characteristics of the motors can be achieved at practically no extra expense in comparison with the systems with traditional, deterministic PWM strategies
Keywords :
electric drives; electric motors; power convertors; pulse width modulation; acoustic noise; electric drive; motors; power convertors; power spectra; random pulse width modulation; randomization; state of the art; vibration; Acoustic noise; Power electronics; Pulse width modulation; Pulse width modulation converters; Reluctance motors; Sampling methods; Switches; Switching converters; Switching frequency; Voltage;
Conference_Titel :
Industry Applications Society Annual Meeting, 1993., Conference Record of the 1993 IEEE
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-1462-X
DOI :
10.1109/IAS.1993.299040
