Adaptive Vibration-Rejection Control on Permanent-Magnet-Type Bearingless Motor

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Journal of Vibration and Shock ›› 2016, Vol. 35 ›› Issue (20) : 65-70.

ZHANG Tao1, NI Wei1, MO Lihong2, JIA Hongyunu3

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Abstract

To solve the difficulty, which the high frequency noise signal seriously affects the identification precision of vibration frequency, the vibration-rejection control system is unstable in permanent-magnet-type bearingless motor. In this paper, vibration-rejection control method based on adaptive multi-frequency tracking algorithm was presented. The production mechanism of vibration frequency identification error is analyzed. The adaptive multi-frequency tracking algorithm is induced and the control system is constructed. Using Lyapunov stability theory, the adaptive multi-frequency tracking algorithm and the control system asymptotically stability are proved. The method is added into the rotor field oriented control system of permanent-magnet-type bearingless motor and the simulation and experimental researches are executed. The research results have shown that the adaptive multi-frequency tracking algorithm can identify the vibration frequency quickly and correctly. The vibration-rejection control system can suppress the rotor vibration and the rotational accuracy is improved.

Key words

permanent-magnet-type bearingless motor / bearingless motor / vibration-rejection / mass unbalance / adaptive control.

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ZHANG Tao1, NI Wei1, MO Lihong2, JIA Hongyunu3. Adaptive Vibration-Rejection Control on Permanent-Magnet-Type Bearingless Motor[J]. Journal of Vibration and Shock, 2016, 35(20): 65-70

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