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http://dx.doi.org/10.5370/JEET.2012.7.4.564

Levitation and Thrust Forces Analysis of Hybrid-Excited Linear Synchronous Motor for Magnetically Levitated Vehicle  

Cho, Han-Wook (Dept. of Electric, Electronic and Communication. Eng. Edu., Chungnam National University)
Kim, Chang-Hyun (Dept. of Magnetic Levitation and Linear Drive, Korea Institute of Machinery and Materials (KIMM))
Han, Hyung-Suk (Dept. of Magnetic Levitation and Linear Drive, Korea Institute of Machinery and Materials (KIMM))
Lee, Jong-Min (Dept. of Magnetic Levitation and Linear Drive, Korea Institute of Machinery and Materials (KIMM))
Publication Information
Journal of Electrical Engineering and Technology / v.7, no.4, 2012 , pp. 564-569 More about this Journal
Abstract
This paper proposes a hybrid-excited linear synchronous motor (LSM) that has potential applications in a magnetically levitated vehicle. The levitation and thrust force characteristics of the LSM are investigated by means of three-dimensional (3-D) numerical electromagnetic FEM calculations and experimental verification. Compared to a conventional LSM with electromagnets, a hybrid-excited LSM can improve levitation force/weight ratios, and reduce the power consumption of the vehicle. Because the two-dimensional (2-D) FE analysis model describes only the center section of the physical device, it cannot express the complex behavior of leakage flux, which this study is able to predicts along with levitation and thrust force characteristics by 3-D FEM calculations. A static force tester for a hybrid-excited LSM has been manufactured and tested in order to verify these predictions. The experimental results confirm the validity of the 3-D FEM calculation scheme for the description of a hybrid-excited LSM.
Keywords
Hybrid-excited linear synchronous motor; Magnetically levitated vehicle; Finite element method; Levitation force; Thrust;
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  • Reference
1 Hyung-Woo Lee, Ki-Chan Kim, and Ju Lee, "Review of maglev train technologies," IEEE Trans. Magn., vol. 42, no. 7, pp. 1917-1925, July 2006.   DOI   ScienceOn
2 M. Morishita, T. Azukizawa, S. Kanda, N. Tamura, and T. Yokoyama, "A new maglev system for magnetically levitated carrier system," IEEE Trans. Vehicular Tech., vol. 38, no. 4, pp. 230-236, 1989.
3 Takashi Onuki, and Tasushi Toda, "Optimal design of hybrid magnet in maglev system with both permanent and electro magnets," IEEE Trans. Magn., vol. 29, no. 2, pp. 1783-1786, March 1993.   DOI   ScienceOn
4 Yumei Du, Liming Shi, and Nengqiang Jin, "Analysis of the three-dimension forces in a hybrid maglev vehicle system," Proc. of ICEMS 2003, pp. 563-565.
5 A. Oswald, H. G. Herzog, "Investigation of the usability of 2D- and 3D-FEM for hybrid stepper motor," IEEE International Electric Machines and Drives Conference, 2009, pp.535-542, 3-6 May 2009.
6 Kinjiro Yoshida, Ju Lee, and Young-Jung Kim "3-D FEM analysis in controlled-PM LSM for maglev vehicle," IEEE Trans. Magn., vol. 33, no. 2, pp. 2207-2210, March 1997.   DOI   ScienceOn
7 Xiaoyong Zhu, Ming Cheng, Wenxiang Zhao, Chunhua Liu, and K.T.Chau, "A transient cosimulation approach to performance analysis of hybrid excited doubly salient machine considering indirect field-circuit coupling," IEEE Trans. Magn., vol. 43, no. 6, pp. 2558-2560, June 2007.   DOI   ScienceOn
8 J.Meins, and L.Miller, "The high-speed maglev transportation system TRANSRAPID," IEEE Trans. Magn., vol. 24, no. 2, pp. 808-811, March 1988.   DOI   ScienceOn
9 Ju Lee, Hyung-Woo Lee, Yon-Do Chun, Myoungho Sunwoo, and Jung-Pyo Hong, "The performance prediction of controlled-PM LSM in various design schemes by FEM," IEEE Trans. Magn., vol. 36, no. 4, pp. 1902-1905, July 2000.   DOI   ScienceOn