@inproceedings{a1373a7763434d3da32ecf46612fb081,
title = "Variable-pole induction machine drive for electric vehicles",
abstract = "High power density, high efficiency, and inexpensive drivetrains operating over wide speed and torque ranges are critical for electric vehicles (EVs). The induction machine (IM) offers a cost-effective and reliable alternative to permanent magnet-based solutions. A fixed pole IM's high torque requirement at low speed sacrifices its performance at partial loads and high speeds. A variable-pole IM has an additional degree of freedom which is the pole count. This paper uses a variable pole count to improve IM performance over a wide torque and speed range. An approach to select the best pole configuration for a given operation strategy is presented. For illustration, a maximum torque per ampere (MTPA) strategy is used on a 36-slot toroidally wound IM. Variable-pole operation increases the torque capability of the machine and enlarges its high efficiency region to a wide speed range. The analytical results provide guidelines for designing and operating a variable-pole machine tailored for this application.",
keywords = "Electric drives, Electric vehicle, Induction machine, Multiphase drives, Power electronics, Transportation",
author = "Elie Libbos and Bonhyun Ku and Shivang Agrawal and Samira Tungare and Arijit Banerjee and Krein, {Philip T.}",
note = "Publisher Copyright: {\textcopyright} 2019 IEEE.; 11th IEEE International Electric Machines and Drives Conference, IEMDC 2019 ; Conference date: 12-05-2019 Through 15-05-2019",
year = "2019",
month = may,
doi = "10.1109/IEMDC.2019.8785212",
language = "English (US)",
series = "2019 IEEE International Electric Machines and Drives Conference, IEMDC 2019",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "515--522",
booktitle = "2019 IEEE International Electric Machines and Drives Conference, IEMDC 2019",
address = "United States",
}