Modeling and simulation of rolling element bearings in inverter-fed AC motors

Author

Cay, Z. ; Henze, O. ; Weiland, T.

Author_Institution

Inst. fuer Theor. Elektromagn. Felder, Tech. Univ. Darmstadt, Darmstadt

fYear

2008

fDate

11-13 June 2008

Firstpage

1333

Lastpage

1336

Abstract

This study analyzes electroquasistatic field behaviors of motor bearings in 2D in the time harmonic and transient case. It also develops an equivalent circuit model of motor bearings using numerical simulation results without considering the electrical breakdown of the lubricant film. Having subcircuit models of bearings, it is possible to couple bearings to system simulations containing motors, PWM inverters, cables.

Keywords

AC motors; PWM invertors; equivalent circuits; numerical analysis; rolling bearings; transient analysis; 2D simulation; PWM inverters; electroquasistatic field behaviors; equivalent circuit model; inverter-fed AC motors; lubricant film; motor bearings; numerical simulation; rolling element bearings; time harmonic case; transient case; AC motors; Circuit simulation; Coupling circuits; Electric breakdown; Equivalent circuits; Harmonic analysis; Lubricants; Numerical simulation; Rolling bearings; Transient analysis; Bearing current; electroquasistatic simulation; inverter-fed motor;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics, Electrical Drives, Automation and Motion, 2008. SPEEDAM 2008. International Symposium on

Conference_Location

Ischia

Print_ISBN

978-1-4244-1663-9

Electronic_ISBN

978-1-4244-1664-6

Type

conf

DOI

10.1109/SPEEDHAM.2008.4581152

Filename

4581152