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Reduction of common-mode voltage generated by voltage-source inverter using proper PWM strategy

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1 Author(s)
Jettanasen, C. ; Dept. of Electr. Eng., King Mongkut''s Inst. of Technol. Ladkrabang, Bangkok, Thailand

Different traditional and/or novel techniques can be applied to reduce or eliminate electromagnetic interference (EMI) emissions, which are nowadays a great concern in electrical/electronic applications. Both conducted and radiated noise emissions cause a number of severe EMI problems. That is why this paper is aimed to study different PWM strategies to restrict or overcome these problems; especially those from the common-mode (CM) conducted noise. The simulated results show that the active vector strategy is a good PWM technique for PWM voltage-source inverter, which is broadly used in adjustable-speed AC motor drive. The effect of dead time of PWM signals is also investigated and discussed.

Published in:

Electromagnetic Compatibility (APEMC), 2012 Asia-Pacific Symposium on

Date of Conference:

21-24 May 2012