Speed sensoless robust control of permanent magnet synchronous motor based on second-order sliding-mode observer

• Main Authors: Fezzani Amor, Drid Said, Makouf Abdesslam, Chrifi-Alaoui Larbi, Ouriagli Mohamed
• Format: Article
• Language: English
• Published: Faculty of Technical Sciences in Cacak 2014-01-01
• Series: Serbian Journal of Electrical Engineering
• Subjects: Lyapunov function; Permanents magnet synchronous motors; Sensorless control; second-order sliding modes; robust nonlinear control
• Online Access: http://www.doiserbia.nb.rs/img/doi/1451-4869/2014/1451-48691403419F.pdf

This paper is devoted to the study of the performances of a robust speed sensorless nonlinear control of permanent magnet synchronous machine. In the first part, the controllers are designed using two methods: the first one using the input output feedback linearization control and the second is a nonlinear control based on Lyapunov theory combined with sliding mode control. This second solution shows good robustness with respect to parameter variations, measurement errors and noises. In the second part, the high order sliding mode speed observer is used to overcome the occurring chattering phenomena. The super twisting algorithm is modified in order to design a speed and position observer for PMSM. Finally, simulation results are given to demonstrate the effectiveness and the good performance of the proposed control methods.