Performance Analysis and Modeling of a Tubular Staggered-Tooth Transverse-Flux PM Linear Machine

Shaohong Zhu, Ping Zheng, Bin Yu, Luming Cheng and Weinan Wang
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Shaohong Zhu: School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150080, Heilongjiang, China
Ping Zheng: School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150080, Heilongjiang, China
Bin Yu: School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150080, Heilongjiang, China
Luming Cheng: School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150080, Heilongjiang, China
Weinan Wang: School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150080, Heilongjiang, China

Energies, 2016, vol. 9, issue 3, 1-18

Abstract: This paper investigates the performance analysis and mathematical modeling of a staggered-tooth transverse-flux permanent magnet linear synchronous machine (STTF-PMLSM), which is characterized by simple structure and low flux leakage. Firstly, the structure advantages and operation principle of the STTF-PMLSM are introduced, and a simplified one phase model is established to investigate the performance of the machine in order to save the computation time. Then, the electromagnetic characteristics, including no-load flux linkage, electromotive force (EMF), inductance, detent force and thrust force, are simulated and analyzed in detail. After that, the theoretical analysis of the detent force, thrust force, and power factor are carried out. And the theoretical analysis results are validated with 3-D finite-element method (FEM). Finally, an improved mathematical model of the machine based on d-q rotating coordinate system is proposed, in which inductance harmonics and coupling between d - and q -axis inductance is considered. The results from the proposed mathematical model are in accordance with the results from 3-D FEM, which proves the validity and effectiveness of the proposed mathematical model. This provides a powerful foundation for the control of the machine.

Keywords: transverse-flux permanent magnet linear machine; detent force; thrust force; 3-D finite-element method (FEM); mathematical model (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2016
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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