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2024-05-28
Decoupling Control of Six-Pole Axial-Radial Active Magnetic Bearing Based on Improved Linear Active Disturbance Rejection Optimized by Least Square Support Vector Machine
By
Zhen Wang,

    Dr. Zhen Wang

    School of Electrical and Information Engineering

    Jiangsu University

    China

    Homepage

Gai Liu,

    Dr. Gai Liu

    Xuzhou University of Technology

    China

    Homepage

Jintao Ju,

    Dr. Jintao Ju

    School of Electrical and Information Engineering

    Changzhou Institute of Technology

    China

    Homepage

Huangqiu Zhu

    Prof. Huangqiu Zhu

    School of Electrical and Information Engineering

    Jiangsu University

    China

    Homepage

Progress In Electromagnetics Research B, Vol. 106, 73-84, 2024
doi:10.2528/PIERB24030202 | Google Scholar

Abstract
To improve the coupling problem between radial degrees of freedom in six-pole axial-radial active magnetic (AR-AMB), a decoupling control method based on an improved linear active disturbance rejection decoupling control strategy optimized by the least square support vector machine (LSSVM-ILADRC) is proposed. Firstly, the structure and working principle of the six-pole AR-AMB are introduced, and the mathematical model of suspension force is derived. Secondly, cascaded linear extended state observers (LESOs) are used to estimate the disturbance in degrees of freedom step by step, with LESO1 providing an initial estimate of the total disturbance, and LESO2 estimating and compensating for the difference between the initial estimate and the actual disturbance. The regression prediction function of LSSVM is employed to enhance the response speed and estimation accuracy of the LESO to the disturbance. Finally, the simulation and experimental research show that the proposed LSSVM-ILADRC decoupling control method has better decoupling performance and anti-interference performance than the ILADRC decoupling control method.
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Citation
Zhen Wang, Gai Liu, Jintao Ju, and Huangqiu Zhu, "Decoupling Control of Six-Pole Axial-Radial Active Magnetic Bearing Based on Improved Linear Active Disturbance Rejection Optimized by Least Square Support Vector Machine," Progress In Electromagnetics Research B, Vol. 106, 73-84, 2024.
doi:10.2528/PIERB24030202
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