Vol. 60 | nr. 1 | January - March 2012 Article 2

Application to adaptive back-stepping for a permanent magnet synchronous machine

Abderrahmane KECHICH, Benyounes MAZARI


Permanent magnet synchronous machine (PMSM) has shown increasing popularity in recent years for industrial drive application due to the recent development in magnetic materials, power converters, and digital signal processors. PMSM drives are widely used in high performance drive (HPD) applications. The control of a high performance permanent magnet synchronous motor drive for general industrial application has received wide spread interest for researchers. In this work, a novel speed and position control scheme for a (PMSM) is developed based on a nonlinear adaptive control scheme. The vector control scheme is used to simplify control of the PMSM. System model equations are represented in the synchronously rotating reference frame and provide the basis for the controller which is designed using the adaptive backstepping nonlinear (ABNL) technique. Using Lyapunov’s stability theory, it is shown that the control variables are asymptotically stable. The complete system model is developed and then simulated using MATLAB/Simulink software. Performance of the proposed controller is investigated extensively at different dynamic operating conditions such as sudden load change, command speed change, command position change and parameter variation. The results show the global stability of the proposed controller is suitable for high performance industrial drive applications. The real time implementation of the complete drive system is currently underway.

Keywords: synchronous machine, permanent magnet, adaptive, backstepping, controller, speed, position nonlinear, simulation