NDLI: Common-mode voltage reduction PWM algorithm for AC drives

Content Provider	IEEE Xplore Digital Library
Author	Tallam, R.M. Kerkman, R.J. Leggate, D. Lukaszewski, R.A.
Copyright Year	2009
Description	Author affiliation: Rockwell Automation/Allen-Bradley, Standard Drives, 6400 W. Enterprise Drive, Mequon WI 53092, USA (Tallam, R.M.; Kerkman, R.J.; Leggate, D.; Lukaszewski, R.A.)
Abstract	The impact of common-mode voltage generated by PWM AC drives on motor bearings is well known. Several algorithms for common-mode voltage reduction have been proposed in the literature. While a few algorithms assume ideal switching and fall apart when non-idealities like inverter dead time are considered, some others are effective only in a limited operating range of the drive. In this paper, a previously proposed algorithm that is best suited for practical implementation is modified to include compensation for dead time and reflected wave motor over-voltage stress, while still producing output voltage waveforms with reduced common-mode content. Experimental results are provided to show the reduction in common-mode voltage over the entire operating range, with other performance attributes such as reflected wave motor over-voltage identical to conventional space-vector PWM. The advantages of applying the algorithm to a fully regenerative AC drive are also demonstrated.
Starting Page	3660
Ending Page	3667
File Size	749289
Page Count	8
File Format	PDF
ISBN	9781424428939
DOI	10.1109/ECCE.2009.5316381
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-09-20
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Space vector pulse width modulation Brushes PWM Pulse width modulation Pulse width modulation inverters Shafts Common-mode voltage Reflected wave Filters AC motors AC drives Voltage Dead time Frequency Equivalent circuits
Content Type	Text
Resource Type	Article

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