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Energies 2013, 6(12), 6548-6568; doi:10.3390/en6126548
Article

Analysis and Design of a Transverse-Flux Dual Rotor Machine for Power-Split Hybrid Electric Vehicle Applications

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Department of Electrical Engineering, Harbin Institute of Technology, Harbin 150080, China
* Author to whom correspondence should be addressed.
Received: 12 November 2013 / Revised: 28 November 2013 / Accepted: 12 December 2013 / Published: 17 December 2013
(This article belongs to the Special Issue Advances in Hybrid Vehicles)
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Abstract

A novel compound-structure transverse-flux permanent-magnet synchronous machine (CS-TFPMSM) is proposed in this paper, which is used in hybrid electric vehicles (HEVs) to fulfill the power-split function. The key component of the CS-TFPMSM is a brushless transverse-flux dual rotor machine (TFDRM). The TFDRM originates from the transverse-flux machines, and is capable of speed adjustment between the transverse-flux rotor and the permanent-magnet rotor without using any brushes. The structure and principle of the TFDRM are described. The torque equations of the TFDRM are deduced, which are different from those of traditional machines. Based on the investigation, the TFDRM tends to have high leakage and a poor power factor. The method to obtain high power factor is discussed. The back electromotive force (BEMF) and torque of the TFDRM are simulated with the variation of parameters, such as pole-pair number, width of the permanent magnets (PMs), and so on. A prototype of a 10kW TFDRM is designed.
Keywords: hybrid electric vehicle; transverse-flux; dual rotor machine; brushless; speed adjustment hybrid electric vehicle; transverse-flux; dual rotor machine; brushless; speed adjustment
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Zheng, P.; Zhao, Q.; Bai, J.; Yu, B.; Song, Z.; Shang, J. Analysis and Design of a Transverse-Flux Dual Rotor Machine for Power-Split Hybrid Electric Vehicle Applications. Energies 2013, 6, 6548-6568.

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