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전기철도 단권변압기 중성점 탭절환 특성연구

Parametric Study for Variable Tap of Autotransformer Neutral in AC Feeding

  • Han, Moonseob (Metropolitan Transportation Research Center, Korea Railroad Research Institute) ;
  • Lee, Chang-Mu (Metropolitan Transportation Research Center, Korea Railroad Research Institute) ;
  • Kim, Jae-Won (Metropolitan Transportation Research Center, Korea Railroad Research Institute) ;
  • Chang, Sang-Hoon (Metropolitan Transportation Research Center, Korea Railroad Research Institute)
  • 투고 : 2017.10.13
  • 심사 : 2017.12.01
  • 발행 : 2018.01.01

초록

The voltage drop is important in electric railway for feeding a huge power of train on fixed feeding area. Nowadays it is tried to operate a high speed trains on conventional lines and there is problem on the voltage drop too. It is simulated on the conditions increased the turn ratio of trolley, installed autotransformer neutral line with variable taps. In result, it is compensated the voltage drop between ATs and better on last AT, not on the position of AT. And it is decreased a return current and neutral current of AT because of unbalance between trolley and feeder. It should be studied faster and more controllable the solid state switchs instead of the mechanical one in order to utilize this system.

키워드

참고문헌

  1. Yoshifumi Mochinaga, "Technical Lecture in Railway Feeding System", RTRI, 1995.
  2. Rafat Kadhim, "Feasibility of asymmetric autotransformer electrification system", RSSB, 2010.
  3. Lee, Chang-Mu, Han, Moon-Seub and Lee, Han-Min, "Evaluation of the variable TAB Autotransformer for ascending collecting Voltage", Spring Conference of The Korean Society for Railway, 2009.5.
  4. Lee, Chang-Mu, Han, Moon-Seub, Lee, Han-Min Ju-Rak Kim and Gil-Dong Kim, "Examination of Increasing Power Delivery Capacity with variable Tab Autotransformer", KIEE Summer Conference, 2009.7.
  5. oorak Kim, MoonSeob Han, Sang-Hoon Chang and Jung-Hoon Kim, "Fault Analysis of AC Traction Power Supply System using Autotransformer with Variable Tap Changer", ICEFA IV, 2010.7.
  6. Joorak Kim, MoonSeob Han and Sang-Hoon Chang, "Fault Impedance Calculation as Autotransformer Tab Change in Traction Power Supply System, MEMPS, 2010.9.
  7. Jawad Fai and, Behzad Siahkolah, "Electronic Tapchanger for Distribution Transformers", Springer, 2011.