Analysis and optimization of interior permanent magnet synchronous motor for electric vehicle applications using ANSYS Motor-CAD

Abstract

The Permanent Magnet Synchronous Motor (PMSM) has the capability to high torque to current ratio, high power to weight ratio, high efficiency and stability. Due to the above positive points, PMSM is extensively employed in recent variable speed AC drives, particularly in electric vehicle applications. The electric vehicle is convenient for the city traffic without toxic gas emissions with low noise. PMSM became at the top of AC motor types due to the positive features written in the previous lines. However, it has two major drawbacks i.e. high cost and small speed range but it can be controlled and exceed to the small speed range with some control methods. A radial flux inner rotor PMSM architecture for electric vehicle application is presented in the project. The Interior Permanent Magnet Synchronous Motor (IPMSM) of the electric vehicle Leaf model, which was first produced by Nissan company in 2012, will be analyzed with ANSYS Motor-CAD and then the analysis results will be compared with the theoretical results and finally will be optimized in the project. The paper will provide insights about various change of parameters and their effects to the other parameters.