Comparison of linear and rotary electric machine topologies for a hybrid hydraulic electric architecture of off-highway vehicles

F. N.U. Nishanth, Anvar Khamitov, Eric L. Severson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Scopus citations

Abstract

Electrification of off-highway vehicles offers the benefits of improved energy efficiency, enhanced controllability, and reduction in greenhouse gas emissions. However, progress towards electrification has been limited by the low power density of electric components compared to hydraulic components. A recently proposed hybrid hydraulic electric vehicle architecture provides a potential solution to these power density challenges by minimizing the required power rating of the electric components. This paper investigates the optimal design of linear and rotary electric machines for this new system architecture. Key performance metrics are identified for the electric machine, several variants of electric machines are analytically sized and compared for two different power levels, and an FEA-assisted design optimization is performed on promising candidates. Based on the optimization results, it is shown that an axial flux rotary machine is most suitable for implements requiring high power ratings, while the linear machines form factor makes it a compelling candidate for lower power implements.

Original languageEnglish (US)
Title of host publication2020 IEEE Transportation Electrification Conference and Expo, ITEC 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1063-1068
Number of pages6
ISBN (Electronic)9781728146294
DOIs
StatePublished - Jun 2020
Externally publishedYes
Event2020 IEEE Transportation Electrification Conference and Expo, ITEC 2020 - Chicago, United States
Duration: Jun 23 2020Jun 26 2020

Publication series

Name2020 IEEE Transportation Electrification Conference and Expo, ITEC 2020

Conference

Conference2020 IEEE Transportation Electrification Conference and Expo, ITEC 2020
Country/TerritoryUnited States
CityChicago
Period6/23/206/26/20

Bibliographical note

Publisher Copyright:
© 2020 IEEE.

Keywords

  • Axial flux motor
  • Electrichydraulic conversion
  • Linear motor
  • Machine design
  • Multiobjective optimization
  • Off-highway vehicle electrification

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