Integrated Motor Control with Active Bearings for Speed Regulation with Rotor Imbalance

The present study proposes a novel method that integrates motor control and active vibration control for speed control of a motor with rotor imbalance. This method employs active bearings to regulate rotor bearing forces for compensating rotor imbalance, while simultaneously utilizing active disturbance rejection control (ADRC) to govern the motor speed and ensure a stable operation. The integration of active bearings into motor control has allowed a significant reduction in rotor vibration, allowing more effective and robust speed control as demonstrated through comparative studies of sole motor control/active bearing control in this work. The implications of this control method are significant for enhancing the performance of electro-mechanical rotary machines in responding to rotor imbalance across diverse industrial applications.