The reduction of undesired electromagnetic emissions in switched power converters is a hot topic. Here, we comment on a chaos-based methodology to synthesize PWM-like signals for controlling the drives of induction motors. The proposed approach reduces drastically the interference due to the drive-motor ensemble, and does not significantly alter the motor performance. The benefit is a ∼ 20 dB reduction in the peak of the emitted power density spectrum. This result is herein confirmed three times: first with an analytical approach based on approximations whose impact is progressively reduced; then by means of simulation; finally by laboratory testing of a working prototype.

Chaos-Based Generation of PWM-Like Signals for Low-EMI Induction Motor Drives: Analysis and Experimental Results / Balestra, M.; Bellini, A.; Callegari, S.; Rovatti, R.; Setti, G.. - In: IEICE TRANSACTIONS ON ELECTRONICS. - ISSN 0916-8524. - STAMPA. - E87-C:1(2004), pp. 66-75.

Chaos-Based Generation of PWM-Like Signals for Low-EMI Induction Motor Drives: Analysis and Experimental Results

SETTI G.
2004

Abstract

The reduction of undesired electromagnetic emissions in switched power converters is a hot topic. Here, we comment on a chaos-based methodology to synthesize PWM-like signals for controlling the drives of induction motors. The proposed approach reduces drastically the interference due to the drive-motor ensemble, and does not significantly alter the motor performance. The benefit is a ∼ 20 dB reduction in the peak of the emitted power density spectrum. This result is herein confirmed three times: first with an analytical approach based on approximations whose impact is progressively reduced; then by means of simulation; finally by laboratory testing of a working prototype.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11583/2696580
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