Research on Active Magnetic Bearing Rotor System Based on Fractional PID Control

At present, the PID control is the most basic control method of the Active Magnetic Bearing, but the integer order PID control sometimes fails to get the reliability and stability requirements of the system. Fractional PID control is a generalization of traditional PID control and theoretically has a better control effect. In this paper, the FO-PID control method is applied to the Active Magnetic Bearing system, and the control system is studied and analyzed. The model built by Simulink compares the response performance of fractional PID and integer PID under unit step signal and the anti-interference ability under different interference. Simulation shows that fractional PID has better control effect and anti-interference ability.