조명전기설비학회논문지 (Journal of the Korean Institute of Illuminating and Electrical Installation Engineers)

  • 제17권6호
  • /
  • Pages.95-104
  • /
  • 2003
  • /
  • 1229-4691(pISSN)
  • /
  • 2287-5034(eISSN)
한국조명전기설비학회 (The Korean Institute of IIIuminating and Electrical Installation Engineers)
권호 표지
DOI QR코드

DOI QR Code

전기철도계통에 순간전압강하 보상장치 적용에 관한 연구

A Study on the Application of the DVR in AC Electric Traction System

  • 발행 : 2003.11.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

전기 철도계통은 기존 전력계통과 달리 단상, 대용량 부하로 필연적으로 전압강하, 전압불평형 및 고조파 왜곡 등의 전력품질의 문제가 발생한다. 이러한 문제점 중 상시전압강하는 전력품질의 가중 중요한 요소로서 SVC(Static Var Compensator) 또는 STACOM(Static Compensator)를 설치하여 전압강하를 보상하는 연구가 수행되었다. 또한 순시전압강하는 고속으로 운전중인 철도차량의 제어 및 안전에 상당한 영향을 미칠것으로 예상된다. 따라서 본 논문에서는 AT(Auto Transformer)급전계통에 적용되는 순간전압강하 보상장치에 관한 연구를 수행하였다. 순간전압강하에 의한 철도차량의 과도해석을 위해 전원, 철도급전변압기, AT, 철도선로 및 철도 차량부하를 모델링 하였다. 또한 순간전압강하 발생시 철도차량부하의 과도특성을 분석하였고 이를 보상하기위한 순간전압강하 보상장치 (DVR:Dynamic Voltage Restorer)를 제안하였다. 순간전압강하 보상 시뮬레이션 결과, 순간전압강하 보상장치의 철도급전계통의 적용은 상당히 유용함을 알수있었다.

The electric traction systems are quite differ from general power systems which is single-phase and heavy load. Therefore, there are inevitably power quality problems such as steady state or transient voltage drop, voltage imbalance and harmonic distortion. Among these problems, since steady-state volatge drop is the one of most important factor in electric power quality, many researches about on the compensation of volatge drop by using SVC(Static Var Compensator) and/or STACOM(Static Compensator) have been studied and proposed Also, it is expected that transient voltage drop(voltage sag) could affect the control and safety of high speed traction load. In this paper, voltage sag compensation of AT(Auto Transformer) feeding system are studied The detailed transient models of utility source, scott transformer, AT, and traction load are estabilished. The application of DVR(Dynamic Voltage Restorer) in electric traction system is proposed to compensate the voltage sag of traction network which is occured by the fault of utility source. It can be shown that application of the DVR in electric traction system is very useful to compensate the volatge sag from the result of related simulation works.

키워드

참고문헌

  1. 오광해 외, “전철부하에 기인된 계통전압 불평형 평가기법”, 대한전기학회 하계학술대회논문집 C권, pp. 787-789, 1997년. 7월.
  2. 추동욱 외, “교류 전기의 AT 급전계통 내 다수열차 운행 모의알고리즘연구”, 대한전기학회논문지, Trans. KIEE, Vol. 50P, No. 2, 2001년. 6월.
  3. 임성정 외, “전기철도 시스템에서 직격뢰에 대한 가공지선의 뇌뢰 효과”, 한국 조명.전기설비 학회 논문지. Vol.15, No.3, pp. 91-96, 2001년. 5월.
  4. 김재철 외, “교류급전시스템 고장해석 및 철도배전계통 보호시스템 체계화”, 숭실대학교 생산기술연구소, 2002년. 3월.
  5. Tsai-Hsiang Chen and Yen-Feng Hsu, “Systematized short-circuit analysis of a 2${\times}$25 kV electric traction network”, Electric Power Systems Research, Vol. 47, No. 2, pp. 133-142, 15. October. 1998. https://doi.org/10.1016/S0378-7796(98)00058-3
  6. Gao Shibin, He Weijun, and Chen Xiaochuan, “Study on microprocessor-based adaptive protective relay for heavy duty electric traction system”, Sixth International Conference on Developments in Power System Protection (Conf. Publ. No. 434), pp. 319-322, 1997.
  7. Millard, A., Taylor, I.A., and Weller, G.C., “AC electrified railways-protection and distance to fault measurement”, International Conference on Electric Railways in a United Europe, pp. 73-77, 1995.
  8. Sezi, T. and Menter, F.E., “Protection scheme for a new AC railway traction power system”, IEEE Transmission and Distribution Conference, Vol. 1, pp. 388-393, 1999. https://doi.org/10.1109/TDC.1999.755383
  9. Ando, M., et. al., “Development of railway static power conditioner used at substation for Shinkanse”, Proceedings of the Power Conversion Conference, Vol. 3, pp. 1108-1111, 2002.
  10. Watanabe, T., “Trend of railway technologies and power semiconductor devices”, Proceedings. of The 11th International Symposium on ISPSD '99, pp. 11-18, 1999.
  11. Hackwell, D., et. al., “The use of static shunt compensation to upgrade existing electrified railways”, International Conference on Main Line Railway Electrification, pp. 232-235, Sep. 1989.
  12. Baichao Chen and Kokernak, J.M., “Thyristor controlled two-stage magnetic-valve reactor for dynamic VAr-compensation in electric railway power supply systems”, IEEE Fifteenth Annual APEC, Vol. 2, pp. 1066-1072, 2000. https://doi.org/10.1109/APEC.2000.822820
  13. Hasuike, K., et. al., “Static power conditioner using GTO converters for AC electric railway”, Power Conversion Conference 1993, pp. 641-646, Apr. 1993.
  14. Baba, K., et. al., “Control methods and characteristics of power converter with large capacity for electric railway system”, Power Conversion Conference 2002, Vol. 3 , pp. 1039-1044, 2002.
  15. Eguchi, N., et. al., “Self-commutated SVC for electric railways”, International Conference on Power Electronics and Drive Systems, Vol. 2, pp.732-737, Feb. 1995.
  16. Hase, S.-I., et. al., “Compensation of voltage drop using static VAr compensator at sectioning post in AC electric railway system”, Power Conversion Conference 1997, Vol. 2, pp. 955-960, Aug. 1997. https://doi.org/10.1109/PCCON.1997.638383

피인용 문헌

  1. Power Quality Analysis of Autotransformer-fed Railway System Considering Installation Position of Shunt Active Power Filter vol.25, pp.8, 2011, https://doi.org/10.5207/JIEIE.2011.25.8.060