Active Control Method for Rotor Eccentric Vibration of High-Speed Motor Based on Least Squares Support Vector Machine

Abstract

Aiming at the problems of large active control errors and long control times in the active control method for high-speed motor rotor eccentric vibration, an active control method for high-speed motor rotor eccentric vibration based on a least squares support vector machine was proposed. Firstly, the overall structure of the system and its high-speed rotor were designed. Secondly, by calculating the centrifugal force of the eccentric rotor, the vibration of the relative phase of the rotor position, and the width of the air gap between the rotor and the stator, a mathematical model of the eccentric vibration of the high-speed motor rotor was established. Then, the basic principle of the least squares support vector machine was analyzed, and the control parameters of the eccentric vibration of the high-speed motor rotor were set and filtered. Finally, an active control model of high-speed motor rotor eccentric vibration was constructed, and the optimal solution of the model was obtained by regression algorithm. The experimental results show that the method is effective for the active control of high-speed motor rotor eccentric vibration, the control effect is consistent with the ideal effect, and the control time is short—the longest is only 0.13 s.