Active disturbance rejection control-based anti-coupling method for conical magnetic bearings
Keywords:conical active magnetic bearings, over-actuated systems, ADRC, coupling mechanism, linearization
Conical-shape magnetic bearings are currently a potential candidate for various magnetic force-supported applications due to their unique geometric nature reducing the number of required active magnets. However, the bearing structure places control-engineering related problems in view of underactuated and coupling phenomena. The paper proposes an Adaptive Disturbance Rejection Control (ADRC) for solving the above-mentioned problem in the conical magnetic bearing. At first, virtual current controls are identified to decouple the electrical sub-system, then the active disturbance rejection control is employed to eliminate coupling effects owing to rotational motions. Comprehensive simulations are provided to illustrate the control ability.
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Copyright (c) 2022 Danh Huy Nguyen, Minh Le Vu, Hieu Do Trong , Danh Giang Nguyen, Tung Lam Nguyen
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