A New PWM Strategy to Reduce the Common-Mode Voltage

Author

Haifeng, Lu ; Xiaomeng, Cheng ; Wenlong, Qu ; Xing, Zhang ; Yang, Fan

Author_Institution

Dept. of Electr. Eng., Tsinghua Univ., Beijing

fYear

2006

fDate

14-17 Nov. 2006

Firstpage

1

Lastpage

4

Abstract

High rate of variation of common-mode voltage (CMV) brings problems to the pulse width modulation (PWM) inverter motor drive system. In this paper, a new two-stage CMV reduction PWM strategy is proposed. In the high voltage region, the peak-to-peak value of the CMV is reduced to one third of the DC voltage, even despite of the dead-time effect and in the low voltage region, both the CMV and the current ripple are reduced. In the entire voltage range, the linear modulation region is not limited and the switching loss is reduced because of fewer switching actions. Experimental results are presented to fully support the above-mentioned claims

Keywords

PWM invertors; induction motor drives; CMV reduction PWM strategy; common dead-time effect; linear modulation region; motor drive system; pulse width modulation; Low voltage; Motor drives; Power electronics; Pulse inverters; Pulse power systems; Pulse width modulation; Pulse width modulation inverters; Space vector pulse width modulation; Switching loss; Virtual colonoscopy; common-mode voltage; current ripple; dead-time effect; linear modulation region; pulse-width modulation;

fLanguage

English

Publisher

ieee

Conference_Titel

TENCON 2006. 2006 IEEE Region 10 Conference

Conference_Location

Hong Kong

Print_ISBN

1-4244-0548-3

Electronic_ISBN

1-4244-0549-1

Type

conf

DOI

10.1109/TENCON.2006.344186

Filename

4142374