NDLI: Bearing currents and their relationship to PWM drives

Content Provider	IEEE Xplore Digital Library
Author	Busse, D. Erdman, J. Kerkman, R.J. Schlegel, D. Skibinski, G.
Copyright Year	1986
Abstract	This paper examines AC motor shaft voltages and the resulting bearing currents when operated under pulse width modulation (PWM) voltage source inverters. The paper reviews the mechanical and electrical characteristics of the bearings and motor in relation to shaft voltages and bearing currents. A brief review of previous work is addressed, including the system model and experimental results. The theory of electric discharge machining (EDM) is presented, including component calculations of the system elements. The effect of system elements on shaft voltages and bearing currents are evaluated experimentally and the results compared to theory. A design calculation is proposed that provides the relative potential for EDM. Finally, the paper presents quantitative results on one solution to the shaft voltage and bearing current problem.
Sponsorship	IEEE Power Electronics Society
Starting Page	243
Ending Page	252
Page Count	10
File Size	245738
File Format	PDF
ISSN	08858993
Volume Number	12
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-03-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Pulse width modulation Voltage Shafts Pulse width modulation inverters AC motors Machining Current density Rotors Insulated gate bipolar transistors Petroleum
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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