Velocity Disturbance Rejection Control of High-Speed Linear Induction Motor Based on Rolling Prediction Matrix

Uncertainty disturbance of measured velocity can cause thrust instability, impeding the transonic process of high-speed linear induction motors (HS-LIM). To tackle this issue, a Velocity Disturbance Rejection Control (VDRC) method based on the Rolling Prediction Matrix (RPM) is proposed in this paper. The method employs multi-point speed predictions to identify uncertain disturbances and produce a virtual speed to substitute the affected sensor speed. Simulation results validate that the proposed technique successfully achieves stable transonic acceleration for HS-LIM.