A V Type Permanent Magnet Motor Simulation Analysis and Prototype Test for Electric Vehicle

Abstract

Permanent magnet motor is an attractive candidate for its utilization in electric vehicle. In this paper, an interior V type permanent magnet (IVPM) motor with strengthening rib and magnetic bridge is proposed for the electric vehicle. Firstly, the windings arrangement of IVPM motor is adopted by double layer fractional-slot distributed winding (FSDW), which purpose is to improve the filed weakening capability and heat emission performance of IVPM. Secondly, some simulation analysis of IVPM motor based on the different width of strengthening rib and magnetic bridge are completed. Lastly, an IVPM motor prototype is constructed and tested. The comparison results between simulation analysis and test show that the proposed IVPM motor has the advantage of high torque density and high efficiency in the constant torque region (1000rpm ~4000rpm). Besides, in the rate and peak running condition of IVPM, the results of prototype simulation and test indicate that the proposed IVPM motor has a reasonable temperature rise.

Keywords

• Strengthening rib
• magnetic bridge
• interior V type permanent magnet motor
• electric vehicle