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Appl. Sci. 2016, 6(11), 342; doi:10.3390/app6110342

Torque Characteristic Analysis of a Transverse Flux Motor Using a Combined-Type Stator Core

Department of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China
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Author to whom correspondence should be addressed.
Academic Editor: Wen-Hsiang Hsieh
Received: 4 October 2016 / Revised: 3 November 2016 / Accepted: 4 November 2016 / Published: 8 November 2016
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Abstract

An external rotor transverse flux motor using a combined-type stator core is proposed for a direct drive application in this paper. The stator core is combined by two kinds of components that can both be manufactured conveniently by generic laminated silicon steel used in traditional motors. The motor benefits from the predominance of low manufacturing cost and low iron loss by using a silicon-steel sheet. Firstly, the basic structure and operation principles of the proposed motor are introduced. Secondly, the expressions of the electromagnetic torque and the cogging torque are deduced by theoretical analysis. Thirdly, the basic characteristics such as permanent magnet flux linkage, no-load back electromotive force, cogging torque and electromagnetic torque are analyzed by a three-dimensional finite element method (3D FEM). Then, the influence of structure parameters on the torque density is investigated, which provides a useful foundation for optimum design of the novel motor. Finally, the torque density of the proposed motor is calculated and discussed, and the result shows that the proposed motor in this paper can provide considerable torque density by using few permanent magnets. View Full-Text
Keywords: transverse flux; torque density; three-dimensional finite element method; external rotor transverse flux; torque density; three-dimensional finite element method; external rotor
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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. (CC BY 4.0).

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Yang, X.; Kou, B.; Luo, J.; Zhou, Y.; Xing, F. Torque Characteristic Analysis of a Transverse Flux Motor Using a Combined-Type Stator Core. Appl. Sci. 2016, 6, 342.

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