Radial 4-DOF decoupling control of active magnetic bearing

Yuhui Bai; Yucai Wu

doi:10.1117/12.2686357

10 August 2023 Radial 4-DOF decoupling control of active magnetic bearing

Yuhui Bai, Yucai Wu

Proceedings Volume 12759, International Conference on Automation Control, Algorithm, and Intelligent Bionics (ACAIB 2023); 127590E (2023) https://doi.org/10.1117/12.2686357
Event: 2023 3rd International Conference on Automation Control, Algorithm and Intelligent Bionics (ACAIB 2023), 2023, Xiamen, China

Abstract

This paper mainly focuses on the coupling effect and decoupling strategy of the active magnetic bearing (AMB). First, the AMB’s operating mechanism is examined, and a linearized model of the electromagnet-rotor is built. Second, the state equation for the five-degree-of-freedom (5-DOF) electromagnet-rotor is obtained using this linearized model. Combined with PID control, a radial magnetic bearing control model was built using MATLABSimulink to observe its control effect. Finally, to solve the coupling problem, a feedforward-feedback decoupling approach is suggested. Via simulation, it has been demonstrated that this approach can lessen the coupling effect and increase the static stability of the system.

Citation Download Citation

Yuhui Bai and Yucai Wu "Radial 4-DOF decoupling control of active magnetic bearing", Proc. SPIE 12759, International Conference on Automation Control, Algorithm, and Intelligent Bionics (ACAIB 2023), 127590E (10 August 2023); https://doi.org/10.1117/12.2686357

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