Design and Validation of SR Motor for Direct Drive In-Wheel using Ansys Simplorer

Abstract

This paper presents the mechanical and electrical prospects for the motor design for an e-scooter. In the starting, the Indian duty cycle (IDC) is used for the mechanical load analysis for 2-wheeler. After analyzing the required power rating of the motor, a design methodology is explained. A 4 phase 8/6 pole SR motor is designed for the e-scooter. The peak torque required is nearly 30 Nm at starting on hill climbing and the power required is around 1000 W. On flat road, the required power is very low as compared to hill climbing or accelerating from starting conditions. The rated speed for urban e-scooter is taken as 23 kmph and the power required at this is nearly 200W. The motor is designed and then FEA analysis is used for the static and dynamic performances of the motor. The hysteresis control is implemented by co-simulation of Maxwell 2D with Ansys Simplorer. The designed motor is analyzed at 23 kmph speed and the efficiency is more than 90% with nearly 3Nm torque.