Speed Tracking Control of PMSM with Adaptive Backstepping

Abstract

Parameters of permanent magnet synchronous motor (PMSM) may occur variety when it is running. It effects performance of system. Adaptive backstepping control is applied to the speed tracking control of PMSM with uncertain parameters. It can estimate stator resistance, friction coefficient and load with real time. The system can remain its good performance when system parameters deviate from normal values. Global ultimate attractiveness of system tracking error and parameters is also proved. The simulated result indicates that the control scheme has the advantage of efficiency and feasibility of the system design