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Design of adaptive compensator of force imbalance for a single active magnetic bearings suspended rotor system

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4 Author(s)
Fan, Yi-Hua ; Department of Mechanical Engineering, Chung Yuan Christian University, Taiwan, Republic of China ; Chen, Kuan-Yu ; Weng, Duan-Liang ; Lee, Ying-Tsun

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This study proposes a model-based force estimator with an adaptive tuner for a single active magnetic bearing suspended rotor system to eliminate the vibration associated with imbalance of mass. The adaptive tuner is added to the integral-typed observer to overcome the estimation error caused by the parameter uncertainty and the model uncertainty. Simulation results show that the adaptive estimation system is more accurate than the integral-type estimator, even though the system model has a 20% parameter error, and the feed-forward compensator can ameliorate the rotational accuracy in the operational range.

Published in:

Journal of Applied Physics  (Volume:103 ,  Issue: 7 )