Performance enhancement and magnet cost optimization of high-speed interior PMSMs for EV applications via ANSYS RMxprt

Interior Permanent Magnet Synchronous Machines (IPMSMs) are widely used in Electric Vehicle (EV) propulsion systems due to their superior torque characteristics, high power density, and high efficiency. With an emphasis on electromagnetic properties, transient behavior, and magnet material optimization, this study has offers a thorough performance and cost analysis of an IPMSM intended for EV applications. In order to ensure maximum magnetic usage and lower losses, the electromagnetic performance of the motor is assessed using comprehensive field analysis, including flux density plots, mesh plots, and field distribution plots. The effects of various permanent magnet grades on cost, efficiency, torque performance, and losses are examined through a comparative analysis. XG196/96 has the best performance and overall efficiency among the assessed magnet grades. This magnet grade motor produces an output power of 30 kW, an average torque of 71.6 Nm, a torque ripple of 8.6 Nm, and an efficiency of 92.8%. According to these findings, XG196/96 provides the optimal balance between magnet cost and performance. In order to evaluate the machines dynamic behavior, transient evaluations are performed in both 2D and 3D domains. The findings show that the suggested IPMSM design is a good contender for next-generation EV propulsion systems.