Unbalance Compensation Control in Active Magnetic Bearings Using Bias Current Excitation

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Abstract:

The model of magnetic bearing and vibration producing mechanism were analyzed. A new adaptive law was developed to eliminate the rotor vibration. The adaptive control system for stabilization of the rotor geometric center to the origin was designed by varying magnetic stiffness through excitation of the bias currents. Finally, the simulation results validated the effectiveness of the proposed algorithm

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1506-1509

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December 2012

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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[1] Kim, C.-S., and Lee,C.-W., In situ runout identification in AMB system by extended influence coefficient method. IEEE Trans. on Mechatronics [J], Vol.2, No.1, 51-57, 1997.

DOI: 10.1109/3516.558858

Google Scholar

[2] Knospe, C. R., Tamer, S.M., and Fedigan, S.J., Robustness of adaptive rotor vibration control to structured uncertainty. ASME J.of Dyn. Sys., Means. And Cont.,119, 243-250, 1997.

DOI: 10.1115/1.2801240

Google Scholar

[3] Chen, D., and Paden, B., Adaptive linearization of hybrid step motors: stability analysis, IEEE Trans. on Automatic Control [J], Vol. 38, No.6, 874-887, 1993.

DOI: 10.1109/9.222300

Google Scholar

[4] Kanemitsu, Y., Kijimoto, S., Matsuda, K., and Jin, P.T., Identification and control of unbalance and sensor runout on rigid by AMB's, proceedings of 5th Int. Symp. On magnetic suspension technology [C], Santa Barbara, CA, 1991.

Google Scholar

[5] Masahide Oshima, et al. Characteristics of a Permanent Magnet Type Bearingless Motor [J]. IEEE Trans. On Industry Application, 1996, 32(2): 363-370.

DOI: 10.1109/28.491485

Google Scholar

[6] Chiba A. et al. An Analysis of Bearingless AC Motors. IEEE Trans. on Energy Conversion [J], 1994, 9(1): 61-68.

DOI: 10.1109/60.282477

Google Scholar

[7] T. Schneider, A. Binder. Design and evaluation of a 60000 rpm permanent magnet bearingless high speed motor[J]. IEEE Transactions on industry applications, 2006, 42(4): 1031-1037.

DOI: 10.1109/peds.2007.4487669

Google Scholar