Comparative Performance Evaluation of Wound Rotor Synchronous Motor and Interior Permanent Magnet Synchronous Motor with Experimental Verification

Abstract

This paper deals with the comparison and performance evaluation of a wound rotor synchronous motor (WRSM) and an interior permanent magnet synchronous motor (IPMSM) based on electromagnetic field characteristic analysis. The models have identical stator structure with three-phase coil winding while the rotor outer diameter and stack length are under same condition. Based on surface response method, each model is optimized with applying rotor offset for the improvement of torque quality such as cogging torque and torque ripple. Furthermore, the electromagnetic power losses are analyzed, and their performance is comparatively evaluated. For the verification of analysis results, the IPMSM is manufactured, and its performance evaluation is also presented based on power loss and efficiency maps.

Keywords

• efficiency
• motor
• loss
• performance
• synchronous