WU Guang-ning, LEI Dong, DONG An-ping, WANG Wan-gang, AI Bing. Distribution property of induced current for rail[J]. Journal of Traffic and Transportation Engineering, 2009, 9(5): 26-31. doi: 10.19818/j.cnki.1671-1637.2009.05.005
Citation: WU Guang-ning, LEI Dong, DONG An-ping, WANG Wan-gang, AI Bing. Distribution property of induced current for rail[J]. Journal of Traffic and Transportation Engineering, 2009, 9(5): 26-31. doi: 10.19818/j.cnki.1671-1637.2009.05.005

Distribution property of induced current for rail

doi: 10.19818/j.cnki.1671-1637.2009.05.005
More Information
  • Author Bio:

    WU Guang-ning (1969-), male, professor, PhD, +86-28-86465525, gnwu@home.swjtu.edu.cn

  • Received Date: 2009-08-11
  • Publish Date: 2009-10-25
  • The mathematical model of induced current for rail was deduced by using infinitesimal method.On the basis of the real-time synchronous testing data of the Da-Qin Railway, the formation mechanism, distribution characteristic, influencing factors of induced current and its influence on rail voltage were analyzed in detail.Computation result shows that the error of the model is less than 10% and it can satisfy the engineering data requirements.The farther the distance between locomotive and traction substation, the bigger induced current becomes, whose distribution is great in the middle and little at both ends.The bigger damping constant is, the bigger induced current becomes, the faster its saturated velocity is.Induced current has effect to reduce rail voltage.The farther the distance between locomotive and traction substation, the more obvious the effect becomes.With the increasing distance, induced current can reduce the voltage by 55% at current enter point.

     

  • loading
  • [1]
    JI ANG Zhong-ao, ZHAO Xue-yi, YANG Yong-chuan, et al. Study on the effects of ground potential caused by electrified rail ways on telecommunication stations[J]. Journal of the China Rail way Society, 1986, 8 (2): 32-39. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-TDXB198602003.htm
    [2]
    ZHOU Dong-peng, WU Jun-yong, WU yan, et al. Finite element si mulation on pantograph-catenary dynamic systemfor Beijing-Tianjinintercity high-speed rail way[J]. Journal of Traffic and Transportation Engineering, 2009, 9 (1): 25-28. (in Chinese) http://transport.chd.edu.cn/article/id/200901006
    [3]
    HAN Fang. An approachto analysingthe coupling of contact wires of electrified rail way with transmission system on and beneath the earth surface[J]. Journal of the China Rail way Society, 1994, 16 (2): 39-45. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-TDXB402.005.htm
    [4]
    ZHANG Zhan-ping. The rail leak current distributing charac-teristic and its ground potential in the AC electrification rail way with direct power supply system[J]. Journal of the China Rail way Society, 1991, 13 (1): 25-33. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-TDXB199101002.htm
    [5]
    SEOJ H, KI MS W, JUNGI H, et al. Dynamic analysis of a pantograph-catenary system using absolute nodal coordin-ates[J]. Vehicle System Dynamics, 2006, 44 (8): 615-630. doi: 10.1080/00423110500373721
    [6]
    HE Zheng-you, FANG Lei, GUO Dong, et al. Algorithm for power flow of electric traction network based on equiva-lent circuit of AT-fed system[J]. Journal of SouthwestJiaotong University, 2008, 43 (1): 1-7. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-XNJT200801002.htm
    [7]
    WOODHOUSE DJ, MIDDLETON R H. Consistency in ground potential rise esti mation utilizing fall of potential method data[J]. IEEE Transactions on Power Delivery, 2005, 20 (2): 1226-1234.
    [8]
    CHEN Shi-lin, HSUS C, TSENG C T, et al. Analysis of rail potential and stray current[J]. IEEE Transactions on Vehicular Technology, 2006, 55 (1): 67-75.
    [9]
    LI Shao-jun, SUN Liang-qin. Model and si mulation of rail current on no-transformer electrified rail way[J]. Journal of NorthernJiaotong University, 1991, 15 (3): 68-76. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-BFJT199103010.htm
    [10]
    BI Hong-jun. Theory analysis of return propulsion current in rails on electrified rail way line[J]. Journal of Northern Jiaotong University, 1994, 18 (2): 251-258. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-BFJT402.027.htm
    [11]
    ZHAO Hui-fang. Auto-transformer for AT power supply of electric rail way[J]. Transformer, 1998, 35 (8): 9-12. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-BYQZ808.002.htm

Catalog

    Article Metrics

    Article views (1134) PDF downloads(429) Cited by()
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return