Decoupling Control of Magnetically Suspended Rotor System in Control Moment Gyros Based on an Inverse System Method

To radically eliminate the influence of gyroscopic effects on system stability and to improve the performances of high-precision, fast-response for the high-speed magnetically suspended rotor system in a control moment gyro, this paper proposes a control strategy that combines inverse system method and internal model control. The stability and robustness problems induced by current-mode linearization have been successfully solved by introducing phase-lead compensation and internal model controller. The effectiveness and superiority of the proposed strategy have been demonstrated by both simulation and experimental results.

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