期刊
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
卷 31, 期 8, 页码 -出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TASC.2021.3101785
关键词
Axial flux permanent magnet (AFPM); hybrid excitation; Soft magnetic composites (SMC); speed control range
资金
- NationalNatural Science Foundation of China [51877093]
- National Key Research and Development Program of China [2018YFE0100200]
- Key Technical Innovation Program of Hubei Province [2019AAA026]
- Natural Science Foundation of Hubei Province [2019CFB759]
- Key research of Educational Commission of Hubei Province [D20201407]
The technique utilizes the advantages of soft magnetic composites to design axial flux permanent magnet motors with high power density and efficiency, overcoming the issue of constant power speed ratio by adding an additional DC excitation winding. Finite element algorithm assessment shows that this motor has larger torque density and a wider speed range, suitable for hybrid electric vehicle drive applications.
Drive machines of hybrid electric vehicles (HEVs) employ axial flux permanentmagnet (AFPM) motors on account of its high power density and high efficiency. The technique takes full advantage of the performance and manufacturing preponderances of soft magnetic composites (SMC). Specifically, it includes low iron consumption at high frequency and high speed, convenient machining and small relative magnetic permeability. An extra DC excitation winding is appended to the motor to conquer the drawbacks of the constant power speed ratio. It can provide an extremely wide constant power speed region, which ensures the excellent property of the machine. Finite element algorithm (FEA) is used to assess the property of axial flux hybrid excitation motor (AFHEM). Comprehensive analysis has fully indicated that larger torque density and wider speed range can be obtained by the AFHEM, which is appropriate for the application of HEV drives.
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