@inproceedings{c30902777f754101950d52ee164de3de,
title = "Scalability and Key Tradeoffs of Variable Flux PM Machines for EV Traction Motor Systems",
abstract = "Methodologies for the design and control of variable flux permanent magnet synchronous machines (VF-PMSMs) to meet electric vehicle traction requirements with significantly reduced driving cycle losses have been proposed recently. The effectiveness of the proposed methods was demonstrated by a systematic design based on finite element analysis (FEA) and experimental driving cycle loss evaluation of a full scale VF-PMSM prototype. In this paper, simplified analytical models are developed to estimate the properties and key performance metrics of VF-PMSMs across a range of power and are verified using FEA. Fundamental tradeoffs between the normalized high-speed power capability and the range of magnetization state (boldsymbol M boldsymbol S ) variation are identified. The relationship between boldsymbol M boldsymbol S variation range and driving cycle loss reduction is evaluated quantitatively across the design space. A detailed analysis of the scalability of VF-PMSMs including loss reduction capability and system cost (including active materials in the machine, inverter power electronics, and battery cost) is presented.",
keywords = "Driving cycle loss, Electric vehicle, Magnetization manipulation, PM machines, Scalability, System design, Variable flux",
author = "Apoorva Athavale and David Reigosa and Kan Akatsu and Kazuto Sakai and Lorenz, {Robert D.}",
year = "2018",
month = dec,
day = "3",
doi = "10.1109/ECCE.2018.8558007",
language = "English",
series = "2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "2292--2299",
booktitle = "2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018",
note = "10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018 ; Conference date: 23-09-2018 Through 27-09-2018",
}