Volume 19 Issue 2
. 
Turn off MathJax
Article Contents
Article Navigation >  Journal of Traffic and Transportation Engineering  > 2019  >  19(2): 101-109
Next Previous
LUO Cheng, ZHANG Kun-lun, JING Yong-zhi. Vertical stability of permanent magnet EDS system with novel Halbach array[J]. Journal of Traffic and Transportation Engineering, 2019, 19(2): 101-109. doi: 10.19818/j.cnki.1671-1637.2019.02.010
Citation: LUO Cheng, ZHANG Kun-lun, JING Yong-zhi. Vertical stability of permanent magnet EDS system with novel Halbach array[J]. Journal of Traffic and Transportation Engineering, 2019, 19(2): 101-109. doi: 10.19818/j.cnki.1671-1637.2019.02.010
shu

Vertical stability of permanent magnet EDS system with novel Halbach array

doi: 10.19818/j.cnki.1671-1637.2019.02.010
  • 1.

    School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, Sichuan, China

  • 2.

    Key Laboratory of Magnetic Suspension Technology and Maglev Vehicle of Ministry of Education, Southwest Jiaotong University, Chengdu 610031, Sichuan, China

More Information
    Abstract
  • For the vertical dynamic stability problem of permanent magnet electrodynamic suspension (EDS) system, the critical stable characteristic of permanent magnet EDS system was analyzed. A novel Halbach array mixed with permanent magnets and normal conductor coils was proposed. The active control on permanent magnet EDS system damping was realized by winding active normal conductor coils on the permanent magnet surface. The novel Halbach array was compared with the other two active electromagnetic damping control schemes. The vertical dynamic model of permanent magnet EDS system with novel Halbach array was established, and the suspension controller was designed by adopting the classical PID closed-loop control method. The system vertical dynamic stability was simulated and analyzed under the conditions without external disturbance, with external disturbing force and with track irregularity disturbance, respectively. Research result shows that under the action of disturbing force, the permanent magnet EDS system will oscillate with a constant amplitude, can not suspend stably and even may crash the track under the action of continuous disturbing force. The proposed novel Halbach array has the advantages of convenient coupling calculation in magnetic field and wide force adjustment range. The designed suspension controller can make the system suspend stably at the equilibrium position with a rated air gap of 0.03 m. The coils current is 0, and no loss is generated. The relative errors of suspension air gap and coils current between the simulation results and theoretical analysis results are less than 0.01%. When there exists a track irregularity disturbance, the system can suspend quickly and stably at the equilibrium position with a rated air gap of 0.03 m, and the stable coils current is still 0. Therefore, a zero-power balance of permanent magnet EDS system is realized. When the external disturbing force is ±1 500 N, the system can suspend quickly and stably at the equilibrium position with a rated air gap of 0.03 m, and the stable coils current is 29.68 and-30.40 A, respectively, proving that the permanent magnet EDS system with novel Halbach array can realize the vertical dynamic stability.

     

    • FullText(HTML)
  • loading
    • References(30)
  • [1]
    HALBACH K. Strong rare earth cobalt quadrupoles[J]. IEEE Transactions on Nuclear Science, 1979, 26 (3): 3882-3884. doi: 10.1109/TNS.1979.4330638
    [2]
    HALBACH K. Design of permanent multipole magnets with oriented rare earth cobalt material[R]. Berkely: University of California Lawrence, 1979.
    [3]
    HALBACH K. Application of permanent magnets in accelerators and electron storage rings[J]. Journal of Applied Physics, 1985, 57 (8): 3605-3608. doi: 10.1063/1.335021
    [4]
    ZHOU Gan, HUANG Xue-liang, ZHOU Qin-bo, et al. The applications of the Halbach permanent magnet array: a review[J]. Small and Special Electrical Machines, 2008, 36 (8): 52-55. (in Chinese). doi: 10.3969/j.issn.1004-7018.2008.08.017
    [5]
    POST R F, RYUTOV D D. The Inductrack concept: a new approach to magnetic levitation[R]. Livermore: Lawrence Livermore National Laboratory, 1996.
    [6]
    RICHARD F P. Inductrack demonstration model[R]. Livermore: Lawrence Livermore National Laboratory, 1998.
    [7]
    CHENG Yu-wei. Technological analysis for permanent magnet EDS system based on Halbach structure[D]. Changsha: National University of Defense Technology, 2010. (in Chinese).
    [8]
    CHENG Yu-wei, HE Guang, LONG Zhi-qiang. Vertical dynamic stability analysis of EDS levitation systems based on Halbach magnet arrays[C]//IEEE. 2009 Chinese Control and Decision Conference (CCDC 2009). New York: IEEE, 2009: 3726-3730.
    [9]
    ZHENG Jie. Study on effect of induction coil on performance of maglev system[D]. Changsha: National University of Defense Technology, 2006. (in Chinese).
    [10]
    CAI Y, ROTE D M, MULCAHY T M, et al. Dynamic stability experiment of maglev systems[R]. Chicago: Argonne National Laboratory, 1995.
    [11]
    ROTE D M, CAI Y. Review of dynamic stability of repulsive-force maglev suspension systems[J]. IEEE Transactions on Magnetics, 2002, 38 (2): 1383-1390. doi: 10.1109/20.996030
    [12]
    CAI Y, CHEN S S, MULCAHY T M, et al. Dynamic stability of maglev systems[R]. Chicago: Argonne National Laboratory, 1992.
    [13]
    HAM C, KO W, LIN K C, et al. Study of a hybrid magnet array for an electrodynamic maglev control[J]. Journal of Magnetics, 2013, 18 (3): 370-374. doi: 10.4283/JMAG.2013.18.3.370
    [14]
    KO W. Modeling and analysis of the EDS maglev system with the Halbach magnet array[D]. Orlando: University of Central Florida, 2007.
    [15]
    HAN Qing-hua. Analysis and modeling of the EDS maglev system based on the Halbach permanent magnet array[D]. Orlando: University of Central Florida, 2004.
    [16]
    HAN Q H, HAM C, PHILLIPS R. A novel maglev system[C]//IEEE. Proceedings of the Thirty-Sixth Southeastern Symposium on System Theory. New York: IEEE, 2004: 505-508.
    [17]
    SHUNSUKE O. Effect of the damper coils on the rotational motion of the superconducting magnetically levitated bogie[J]. IEEE Transactions on Magnetics, 2000, 36 (5): 3680-3682. doi: 10.1109/20.908939
    [18]
    SHUNSUKE O, OHSAKI H, MASADA E. Effect of the active damper coil system on the lateral displacement of the magnetically levitated bogie[J]. IEEE Transactions on Magnetics, 1999, 35 (5): 4001-4003. doi: 10.1109/20.800735
    [19]
    HE J J, COFFEY H. Magnetic damping forces in the figure-eight-shaped null-flux coil suspension system[C]//IEEE. 1997 IEEE International Magnetics Conference. New York: IEEE, 1997: 10.1109/INTMAG. 1997.597511.
    [20]
    HE J J, COFFEY H. Magnetic damping forces in figure-eight-shaped null-flux coil suspension systems[J]. IEEE Transactions on Magnetics, 2002, 33 (5): 4230-4232.
    [21]
    HE Guang. Research on permanent-magnet EDS and EMS hybrid suspension system based on Halbach structure[D]. Changsha: National University of Defense Technology, 2010. (in Chinese).
    [22]
    LONG Zhi-qiang, HE Guang, XUE Song. Study of EDS and EMS hybrid suspension system with permanent-magnet Halbach array[J]. IEEE Transactions on Magnetics, 2011, 47 (12): 4717-4724. doi: 10.1109/TMAG.2011.2159237
    [23]
    YAN Yu-zhuang, LI Yun-gang, CHENG Hu. Analysis of levitation stability and technology characters of EDS and EMS hybrid maglev[J]. Proceedings of the CSEE, 2007, 27 (6): 53-56. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-ZGDC200706011.htm
    [24]
    CHEN Hui-xing, LI Yun-gang, YAN Yu-zhuang. Stable margin analysis on EDS & amp; amp; EMS hybrid maglev system[J]. Electric Drive, 2007, 37 (7): 50-53. (in Chinese).
    [25]
    ROTE D M. Passive damping in EDS maglev systems[R]. Chicago: Argonne National Laboratory, 2002.
    [26]
    STORSET O F, PADEN B. Infinite dimensional models for perforated track electrodynamic magnetic levitation[C]//IEEE. Proceedings of the 41st IEEE Conference on Decision and Control. New York: IEEE, 2002: 842-847.
    [27]
    POST R F, RYUTOV D D. The Inductrack: a simpler approach to magnetic levitation[J]. IEEE Transactions on Applied Superconductivity, 2000, 10 (1): 901-904.
    [28]
    WANG Li, XIONG Jian, ZHANG Kun-lun, et al. Research of hybrid suspension system made of permanent magnets and electromagnets[J]. Journal of the China Railway Society, 2005, 27 (3): 50-54. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-TDXB200503010.htm
    [29]
    WANG Li. Study on hybrid EMS technology[D]. Chengdu: Southwest Jiaotong University, 2006. (in Chinese).
    [30]
    WANG Li. Hybrid magnetic suspension system based on zero power control strategy[J]. Journal of Southwest Jiaotong University, 2005, 40 (5): 667-672. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-XNJT200505021.htm
    • Relative Articles
    • Supplements(0)
    • Cited By

Catalog

    Get Citation
    PDF
    XML

    Article Metrics

    Article views (1640) PDF downloads(363) Cited by()
    Related

    Copyright《Journal of Traffic and Transportation Engineering》编辑部陕ICP备05001904号-1

    Address ：Editorial Department of Journal of Traffic and Transportation Engineering, Chang 'an University, Middle Section of South Second Ring Road, Xi 'an, Shaanxi（710064） Tel：029-82334388 Email：jygc@chd.edu.cn

    All visit:Today's visit:

    Supported by: Beijing Renhe Information Technology Co. Ltd    

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return