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Research on PID Tuning Method of Magnetically Suspended Rotor System Based on IMC

In order to simplify the debugging process of magnetically suspended rotor system, a control method combined traditional PID control with internal model control (IMC) was proposed in this paper. Compared with the PID control with three adjustment parameters, the adjustment parameters of the IMC-PID is reduced to one. The simulation results show that the proposed method not only suppresses the overshoot, reduces adjustment time, but also has a certain ability of anti-disturbance and robustness. At last, the effectiveness of the proposed method is verified by experiments.