Calculation of Radial Active Magnetic Bearing Electromagnetic Force under Eccentric Rotor

Xiao Jing Liu; Ye Fa Hu

doi:10.4028/www.scientific.net/AMR.443-444.649

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 443-444Calculation of Radial Active Magnetic Bearing...

Calculation of Radial Active Magnetic Bearing Electromagnetic Force under Eccentric Rotor

Abstract:

As for active magnetic bearing, ordinary electromagnetic force formula based on air gap well-distributed. However, radial active magnetic bearing always face the situation that the rotor is eccentric and the air gap doesn’t well-distributed. This paper gives the calculation method of the electromagnetic force at that situation through calculating the air gap and using integrative approach. Then analysis the influence factors---eccentric rotor distance from center and eccentric angle to electromagnetic force. The result can provide the basis for suspension characteristic of active magnetic bearing.

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Periodical:

Advanced Materials Research (Volumes 443-444)

Pages:

649-654

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.443-444.649

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Online since:

January 2012

Authors:

Xiao Jing Liu, Ye Fa Hu

Keywords:

Active Magnetic Bearing (AMB), Air Gap, Eccentric Angle, Eccentric Distance, Electromagnetic Force

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References

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