Harmonic Current Suppression of Magnetically Suspended Rotor System via Odd-Harmonic Fractional RC

As an efficient actuator for microvibration applications, a magnetically suspended rotor (MSR) system is always stymied by rotor mass imbalance and sensor runout, which will result in a harmonic disturbance in control current and further lead to severe periodic vibrations. In this paper, an odd-harmonic fractional repetitive control strategy is investigated for MSR systems to suppress odd-harmonic...