Comparative Study and Design Optimization of a Dual-Mechanical-Port Electric Machine for Hybrid Electric Vehicle Applications

Authors

Hao Chen, Chalmers University of TechnologyFollow
Ayman M. EL-Refaie, Marquette UniversityFollow
Yuefei Zuo, Nanyang Technological University, Singapore
Shun Cai, Nanyang Technological University, Singapore
Libing Cao, Nanyang Technological University, Singapore
Christopher H. T. Lee, Nanyang Technological University, SingaporeFollow

Document Type

Article

Publication Date

8-2022

Publisher

Institute of Electrical and Electronic Engineers

Source Publication

IEEE Transactions on Vehicular Technology

Source ISSN

0018-9545

Original Item ID

DOI: 10.1109/TVT.2022.3175476

Abstract

A new dual-mechanical-port (DMP) electric machine for hybrid electric vehicle applications, particularly in the power-split continuously variable transmission systems, is proposed in this paper. In order to comprehensively and quantitatively evaluate the pros and cons of the proposed machine, a comparative study of four DMP electric machines with different topologies is conducted. These four investigated DMP electric machines include a conventional DMP machine, a DMP machine with spoke-type permanent magnets, a DMP machine with reluctance rotor, and a DMP machine with open slots which is the proposed machine in this paper. Even though these four machines have similar topologies, they have different operating principles, which are demonstrated in detail. The comparison results indicate that the DMP machine with open slots outperforms the others in terms of torque/power density, efficiency, magnet utilization, etc. Accordingly, the DMP machine with open slots is selected for further investigation and optimization. A large-scale multi-objective optimization is carried out for this machine, where the differential evolution algorithm serves as a global search engine to target optimal performance. Finally, an optimal design is prototyped, and the experimental results are performed to verify the effectiveness of the analysis and simulation results in this paper.

Comments

Accepted version. IEEE Transactions on Vehicular Technology, Vol. 71, No. 8 (August 2022): 8341-8353. DOI. © 2022 Institute of Electrical and Electronic Engineers (IEEE). Used with permission.

Recommended Citation

Chen, Hao; EL-Refaie, Ayman M.; Zuo, Yuefei; Cai, Shun; Cao, Libing; and Lee, Christopher H. T., "Comparative Study and Design Optimization of a Dual-Mechanical-Port Electric Machine for Hybrid Electric Vehicle Applications" (2022). Electrical and Computer Engineering Faculty Research and Publications. 750.
https://epublications.marquette.edu/electric_fac/750