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Analytical Modeling and Comparison of Two Consequent-Pole Magnetic-Geared Machines for Hybrid Electric Vehicles

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  • Hang Zhao

    (School of Energy and Environment, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon Tong, Hong Kong, China
    Shenzhen Research Institute, City University of Hong Kong, Nanshan District, Shenzhen 518057, China)

  • Chunhua Liu

    (School of Energy and Environment, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon Tong, Hong Kong, China
    Shenzhen Research Institute, City University of Hong Kong, Nanshan District, Shenzhen 518057, China)

  • Zaixin Song

    (School of Energy and Environment, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon Tong, Hong Kong, China
    Shenzhen Research Institute, City University of Hong Kong, Nanshan District, Shenzhen 518057, China)

  • Jincheng Yu

    (School of Energy and Environment, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon Tong, Hong Kong, China
    Shenzhen Research Institute, City University of Hong Kong, Nanshan District, Shenzhen 518057, China)

Abstract

The exact mathematical modeling of electric machines has always been an effective tool for scholars to understand the working principles and structure requirements of novel machine topologies. This paper provides an analytical modeling method—the harmonic modeling method (HMM)—for two types of consequent-pole magnetic-geared machines, namely the single consequent-pole magnetic-geared machine (SCP-MGM) and the dual consequent-pole magnetic-geared machine (DCP-MGM). By dividing the whole machine domain into different ring-like subdomains and solving the Maxwell equations, the magnetic field distribution and electromagnetic parameters of the two machines can be obtained, respectively. The two machines were applied in the propulsion systems of hybrid electric vehicles (HEVs). The electromagnetic performances of two machines under different operating conditions were also compared. It turns out that the DCP-MGM can reach a larger electromagnetic torque compared to that of the SCP-MGM under the same conditions. Finally, the predicted results were verified by the finite element analysis (FEA). A good agreement can be observed between HMM and FEA. Furthermore, HMM can also be applied to the mathematical modeling of other consequent-pole electric machines in further study.

Suggested Citation

  • Hang Zhao & Chunhua Liu & Zaixin Song & Jincheng Yu, 2019. "Analytical Modeling and Comparison of Two Consequent-Pole Magnetic-Geared Machines for Hybrid Electric Vehicles," Energies, MDPI, vol. 12(10), pages 1-25, May.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:10:p:1888-:d:232155
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    References listed on IDEAS

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    1. Cheng-Ta Chung & Chien-Hsun Wu & Yi-Hsuan Hung, 2018. "Effects of Electric Circulation on the Energy Efficiency of the Power Split e-CVT Hybrid Systems," Energies, MDPI, vol. 11(9), pages 1-15, September.
    2. Chunhua Liu & K. T. Chau, 2014. "Electromagnetic Design of a New Electrically Controlled Magnetic Variable-Speed Gearing Machine," Energies, MDPI, vol. 7(3), pages 1-16, March.
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    Cited by:

    1. Zhiyan Zhang & Ming Zhang & Jing Yin & Jie Wu & Cunxiang Yang, 2022. "An Analytical Method for Calculating the Cogging Torque of a Consequent Pole Hybrid Excitation Synchronous Machine Based on Spatial 3D Field Simplification," Energies, MDPI, vol. 15(3), pages 1-13, January.
    2. Yuanxi Chen & Weinong Fu & Shuangxia Niu & Sigao Wang, 2023. "A Torque-Enhanced Magnetic-Geared Machine with Dual-Series-Winding and Its Design Approach for Electric Vehicle Powertrain," Sustainability, MDPI, vol. 15(6), pages 1-17, March.

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