Open AccessInvestigation of Aluminium and Copper Wound PMSM for Direct–drive Electric Vehicle Application
Author(s) -
Himavarsha Dhulipati,
Shruthi Mukundan,
Lucas Chauvin,
Christina Riczu,
Afsaneh Edrisy,
Mark Kozdras,
Jennifer Bauman,
Saeid Habibi,
Jimi Tjong,
Narayan C. Kar
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/654/1/012002
Subject(s) - torque density , electromagnetic coil , torque , automotive engineering , aluminium , driving cycle , copper loss , magnet , electric vehicle , copper , materials science , mechanical engineering , engineering , control theory (sociology) , computer science , electrical engineering , physics , metallurgy , power (physics) , control (management) , quantum mechanics , artificial intelligence , thermodynamics
This paper investigates aluminium and copper windings for a permanent magnet synchronous machine (PMSM) developed for direct–drive electric vehicle (EV) application. Previously, studies have been conducted on comparison of these windings in terms of thermal and electrical conductivity, cost and mass density. However, the impact of these windings on the machine’s performance in terms of efficiency and torque has not been analysed. In this paper, for the same machine volume and geometry, a comparative analysis of PMSMs with copper and aluminium windings has been performed in terms of efficiency, torque, weight, operating speed range, ohmic losses and temperatures. Furthermore, as these machines are developed for direct–drive EV application, drive–cycle-based analysis was conducted for urban and highway cycles for a 2013 Ford Focus vehicle dynamics model. For these drive cycles, analysis in terms of torque speed characteristics and maximum energy density efficiency for both the machines has been performed.