Robust Nonlinear Predictive Controller for Permanent-Magnet Synchronous Motors With an Optimized Cost Function

Author

Errouissi, Rachid ; Ouhrouche, Mohand ; Chen, Wen-Hua ; Trzynadlowski, Andrzej M.

Author_Institution

Dept. of Appl. Sci., Univ. of Quebec, Chicoutimi, QC, Canada

Volume

59

Issue

7

fYear

2012

fDate

7/1/2012 12:00:00 AM

Firstpage

2849

Lastpage

2858

Abstract

A robust nonlinear predictive controller for permanent-magnet synchronous motors is proposed. The nonlinear predictive control law is formulated by optimizing a novel cost function. A key feature of the proposed control is that it does not require the knowledge of the external perturbation and parameter uncertainties to enhance the robustness. A zero steady-state error is guaranteed by an integral action of the controller. The stability of the closed-loop system is ensured by convergence of the output-tracking error to the origin. The proposed control strategy is verified via simulation and experiment. High performance with respect to speed tracking and current control of the motor has been demonstrated.

Keywords

angular velocity control; closed loop systems; electric current control; machine control; nonlinear control systems; permanent magnet motors; predictive control; robust control; synchronous motors; closed-loop stability system; cost function optimization; current control; external perturbation; nonlinear predictive controller; output-tracking error convergence; parameter uncertainty; permanent-magnet synchronous motor; robustness enhancement; speed tracking control; zero steady-state error; Closed loop systems; Predictive control; Robustness; Rotors; Steady-state; Torque; Trajectory; Digital signal processors; nonlinear optimization problem; permanent-magnet synchronous motor (PMSM); robust nonlinear predictive control (RNPC);

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/TIE.2011.2157276

Filename

5771565