Research on fuzzy adaptive control for permanent magnet type bearingless motor

Permanent magnet type bearingless motor is nonlinear and coupling complex system. On the basis of the complete mathematical model which express the coupling between suspension and rotor torque, and under variation of Interference and Processing Parameters, this paper discussed the effects of the motor´ parameters on the operation speed and suspension performance. Meanwhile, aiming at the robust control problem, a fuzzy adaptive control theory is applied. Throughout the simulation, the influence of paraments to operation performance is verified, by contrasting to fuzzy PID control method, it proves the efficiency of fuzzy adaptive control method which can realize robust control more efficiently.