Modeling of AMB system and quasi-resonant self-rejecting disturbance vibration suppression

SUN Jianzhong1, SONG Weihao1, FAN Penghao1, CHEN Xinhang2, WANG Haochen1

Journal of Vibration and Shock ›› 2024, Vol. 43 ›› Issue (13) : 227-236.

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PDF(2456 KB)
Journal of Vibration and Shock ›› 2024, Vol. 43 ›› Issue (13) : 227-236.

Modeling of AMB system and quasi-resonant self-rejecting disturbance vibration suppression

  • SUN Jianzhong1, SONG Weihao1, FAN Penghao1, CHEN Xinhang2, WANG Haochen1
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Abstract

For establishing a more accurate mathematical model of AMB and optimize its control performance, the nonlinear characteristics of electromagnetic force and the inherent interference source of this system are analyzed. The radial coupling system model of AMB with interference source is established through the rotor dynamics analysis. A quasi-resonant active disturbance rejection vibration suppression method is proposed to restrain the vibration. The extended state observer is used to decouple the system, simplify the control flow and improve the anti-interference ability. On this basis, the quasi-resonant controller is incorporated to restrain the sinusoidal periodic vibration. Compared with the traditional method, this method has a simple structure and requires less tuning parameters. The simulation and test results show that the proposed method can effectively reduce the amplitude of rotor displacement fluctuation, the common periodic vibration at fundamental frequency, triple frequency and quintuple frequency are significantly suppressed, the vibration suppression effect is good.

Key words

active magnetic bearing(AMB) / rotor dynamics analysis / vibration suppression / extended state observer / quasi-resonant controller

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SUN Jianzhong1, SONG Weihao1, FAN Penghao1, CHEN Xinhang2, WANG Haochen1. Modeling of AMB system and quasi-resonant self-rejecting disturbance vibration suppression[J]. Journal of Vibration and Shock, 2024, 43(13): 227-236

References

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