Mohammad Reza Alizadeh Pahlavani - Malek Ashtar University of Technology tehran,iran
Hossein Damroodi - Malek Ashtar University of Technology tehran,iran

This paper deals with the modeling, analysis, design and simulation of a robust control method for a permanent magnet synchronous machine (PMSM) supplied with a PWM inverter based on a Linear Parameter Variation (LPV) standard controller. Under the influence of uncertainties and external disturbances, by a variation of ±150% of motor parameters from the nominal values, the robust performance control problem is formulated as a LPV standard scheme and solved by a suboptimal Linear Matrix Inequality (LMI) iterative strategy. This new design method is able to ensure the stabilization of the augmented system formed of the perturbed system with improved performance in face of parameter variation and external disturbances. A Simulation study was carried out to illustrate the effectiveness of the proposed method. The results simulation are compared with a simple conventional PI controller.

PMSM,PWM inverter,LPV,Robust,H infinity,LMI,Parameter variation,External disturbances