Design of 37 kW switched reluctance motor and torque ripple reduction with DTC for electric vehicle

The world aims net-zero carbon emissions by 2050 that has led to the rise of electric vehicles driven by high speed motors for traction applications. The permanent magnet machines are found to be popular among the traction segment. The rare earth metals are costly and the supply chain issues create the need for non-magnetic motors like switched reluctance motor (SRM). The SRM is best suitable for high speed applications because of its simple construction and robust structure. With advancement in analytical tools and finite element method (FEM) analysis, 8/6 SRM is designed using RMXprt and validated by FEM through ANSYS MAXWELL 2D for 37 kW configuration suitable for SUV, sedan type vehicles. The design considerations are as per the IEC standards for efficiency class IE3 and standard motor frame size. The direct torque control (DTC) method is adopted using MATLAB Simulink to reduce the torque ripples.