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 language | English |
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Title of host publication | 2020 IEEE Transportation Electrification Conference and Expo, ITEC 2020 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 1063-1068 |
Number of pages | 6 |
ISBN (Electronic) | 9781728146294 |
DOIs | |
State | Published - Jun 2020 |
Externally published | Yes |
Event | 2020 IEEE Transportation Electrification Conference and Expo, ITEC 2020 - Chicago, United States Duration: Jun 23 2020 → Jun 26 2020 |
Publication series
Name | 2020 IEEE Transportation Electrification Conference and Expo, ITEC 2020 |
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Conference
Conference | 2020 IEEE Transportation Electrification Conference and Expo, ITEC 2020 |
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Country/Territory | United States |
City | Chicago |
Period | 06/23/20 → 06/26/20 |
Funding
This material is based upon work supported by the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy (EERE) under the Award Number DE-EE0008384. Electromagnetic simulation tools used in this investigation were generously provided by Mentor Graphics, a Siemens business.
Keywords
- Axial flux motor
- Electrichydraulic conversion
- Linear motor
- Machine design
- Multiobjective optimization
- Off-highway vehicle electrification