Fig. 1. Structure of an AMB rotor system

Fig. 2. Schematic diagram of a coordinate a system

Fig. 3. Schematic diagram of an AMB rotor system with mass imbalance and sensor runout

Fig. 4. Control block diagram of an AMB rotor system with compound method

Fig. 5. Block diagram of the repetition controller Grc(s)

Fig. 6. Functional block diagram of GANF(s)

Fig. 7. Functional block diagram of Gcm(s)

Fig. 8. Phase-frequency characteristic of S0(s)，S1(s)and S2(s)

Fig. 9. Experiment system of magnetically suspended rotor

Fig. 10. FFT simulation results of ix and fx before and after algorithm suppression when the speed is 200 Hz

Fig. 11. FFT experimental results of ix and fx before and after algorithm suppression when the speed is 200 Hz