Author(s) :

Ezeonye, C. S, Okpo, E. E, Nkan, I. E, Okoro, O. I.

Volume/Issue :

Abstract :

This paper presents the effect of saliency and core losses on the dynamic behavior of permanent magnet synchronous motor. This objective was realized with the aid of Matlab/Simulink. The two motors (Interior and Surface-Mounted PMSM) used in this work are of specifications 3-phase, 2 KW, 50 Hz, 4 poles, 240 V each. The transient and steady state responses of the motors were obtained, which revealed that when core loss is introduced to the motor, it decreases the magnitude of the ripple of electromagnetic torque and output power but affects the speed of the motor as it takes more time to attain steady state. The effect of saliency caused by reluctance torque showed that the load angle during the rated operation increases, and so the pull-out torque is obtained at the power angle greater than 900. The maximum fundamental and electromagnetic torque is achieved at saliency ratio of 0.5. The results obtained in this work as compared to other literatures show improved design of Interior and Surface-Mounted Permanent Magnet Synchronous Motor (IPMSM and SPMSM) with clear understanding of the parameters required of a particular motor for best operating performance.

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