Dynamic modeling of permanent magnet synchronous motor using MATLAB - simulink

Abstract

Permanent Magnet Synchronous Motors (PMSM) are widely applied in industrial and robotic applications due to their high efficiency, low inertia and high torque – to - volume ratio. So, this paper proposes two simulation dynamic models for ac Interior Permanent Magnet Synchronous Motor (IPMSM), and ac Surface Permanent Magnet Synchronous Motor (SPMSM) with the aid of MATLAB – Simulink. The modeling procedures are described and simulation results are presented. These dynamic models capable of predicting the machine’s behaviour for this machine type. The model takes the core loss in its consideration, to show its effect on torque ripple. These non – linear models of the PMSM in d-q reference frame are defined. The dynamic models are developed by coupling electrical equations and mechanical equations of the PMSM. All simulation results are presented for all machine’s variable characteristics. The validity of our model here is verified using V \ f control, at various frequencies values. These models will be used in future, in sensorless speed control.