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

2014 ◽  
Vol 11 (3) ◽  
pp. 419-433 ◽  
Author(s):  
Amor Fezzani ◽  
Said Drid ◽  
Abdesslam Makouf ◽  
Larbi Chrifi-Alaoui ◽  
Mohamed Ouriagli

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.

Author(s):  
Anissa Hosseyni ◽  
Ramzi Trabelsi ◽  
Sanjeeve Kumar ◽  
Med Faouzi Mimouni ◽  
Atif Iqbal

<p>This paper proposes a sensorless sliding mode control (SMC) for a five phase permanent magnet synchronous motor (PMSM) based on a sliding mode observer (SMO). The stability of the proposed strategy is proved in the sense of the Lyapunov theory. The sliding mode controller is designed with an integral switching surface and the sliding mode observer is developed for the estimation of rotor position and rotor speed. The proposed sensorless control strategy exhibits good dynamic response to disturbances. Simulation results are provided to prove the effectiveness of the proposed strategy.</p>


2014 ◽  
Vol 697 ◽  
pp. 397-401
Author(s):  
Fei Fei Han ◽  
Zhong Hua Wang ◽  
Tong Yi Han

In this paper, a new sensorless speed control strategy which is based on a new sliding-mode observer (SMO) is proposed for permanent-magnet synchronous motor (PMSM). The rotor position is estimated by the back electromotive force (EMF). In order to improve the estimation accuracy, the speed estimator is proposed, which replace the method of direct differential. The Lyapunov theory is applied to prove the stability of the designed system. The simulation results indicate that the proposed sensorless speed control system of permanent-magnet synchronous motor based on a new sliding-mode observer is effective and feasible.


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