Improvement of Electromagnetic Compatibility of Motor Drives Using Chaotic PWM

Author

Wang, Zheng ; Chau, K.T. ; Liu, Chunhua

Author_Institution

Dept. of Electr. & Electron. Eng., Hong Kong Univ.

Volume

43

Issue

6

fYear

2007

fDate

6/1/2007 12:00:00 AM

Firstpage

2612

Lastpage

2614

Abstract

In this paper, a new chaotic pulse width modulation (PWM) scheme is proposed and implemented to reduce the conducted electromagnetic interference (EMI) in motor drives. The key is the use of logistic mapping to chaoize a frequency-modulated signal which then modulates the carrier frequency. Compared with the sinusoidal PWM and random PWM, the proposed scheme not only suppresses the peaky EMI, but also avoids the occurrence of low-order noises and mechanical resonance. Both simulation and experimental results are given to support the validity

Keywords

chaos; electromagnetic compatibility; electromagnetic interference; interference suppression; motor drives; pulse width modulation; EMI suppression; carrier frequency modulation; chaotic PWM; electromagnetic compatibility; electromagnetic interference; frequency modulated signal; logistic mapping; low-order noise; motor drives; pulse width modulation; Chaos; EMP radiation effects; Electromagnetic compatibility; Electromagnetic interference; Frequency; Logistics; Motor drives; Pulse width modulation; Signal mapping; Space vector pulse width modulation; Chaos; EMC; EMI; PWM; motor drives;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2007.893712

Filename

4202996