Dynamic modeling of permanent magnet synchronous motor using MATLAB - simulink

Abstract

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