Performance Analysis of a PMSM for Traction Applications in Electric Vehicles with Hairpin Winding Technology

Abstract

This paper presents the performance analysis of an interior permanent magnet synchronous motor (IPMSM) for electric vehicle application based on hairpin winding technology. Firstly, the vehicle dynamic was modelled and analysed to determine an appropriately rated motor for the drive system, and a suitable IPMSM via finite element analysis (FEA) using hairpin winding in the stator. Four different layers of hairpin winding – 2-layer, 4-layer, 6-layer and 8-layer were considered. The performance analysis show that the 8-layer has the lowest mechanical losses, and thus most suitable for application in electric vehicles design.