RISS 검색 - 국내학술지논문 상세보기

다국어 초록 (Multilingual Abstract)

AC railway system which has a large single-phase AC load causes voltage unbalance. The voltage unbalance can effect to decrease efficiency, life time of installed devices in three-phase supply system. In this paper, the definition of voltage unbalance factor and the limiting value are compared and investigated. Among them, the methods of analysis and evaluation presented by IEC (IEC 61000-3-13) standards are introduced. In addition, the voltage unbalance factor was calculated using the actual measured voltage at the AC railway substations by the methods given in the national and IEC standards. In conclusion, the characteristics of the voltage unbalanced rate in the AC railway system are to be identified.

목차 (Table of Contents)

Abstract
1. 서론
2. 국 · 내외 전압불평형률 관련 기준
3. IEC 기준의 전압불평형률 평가 방법 조사
4. 분석 결과 고찰

Abstract
1. 서론
2. 국 · 내외 전압불평형률 관련 기준
3. IEC 기준의 전압불평형률 평가 방법 조사
4. 분석 결과 고찰
3. 결론
References

참고문헌 (Reference)

1 B. Banerjee, "Voltage unbalance: Power quality issues, related standards and mitigation technique" EPRI 2000

2 B. Banerjee, "Voltage Unbalance: Power Quality Issues, Related Standards and Mitigation Techniques" EPRI 2-42, 2000

3 M. H. Albadi, "Unbalance in power system: Case study" 1409-, 2015

4 KEPCO, "Regulations on Facilities of Power Transmission and Distribution, Energy Trading Terms"

5 A. T. Chauhan, "Power Quality Issues and their Impact on the Performance of Industrial Machines" Anchor Academic Publishing 9-, 2016

6 R. Koch, "International survey of unbalance level in LV, MV, HV, and EHV power system: CIGRE/CIRED JWG C4.103RESULT" 2007

7 "IEC 61000-4-30, Electromagnetic compatibility (EMC)-Part 4-30: Testing and measurement techniques - Power quality measurement methods, Basic EMC Pubilication edition 3.0"

8 "IEC 61000-3-11, Electromagnetic compatibility (EMC) -Part 3-13: Limits - Assessment of emission limits for the connection of unbalanced installations to MV, HV, and EHC power systems, Basic EMC Pubilication edition 1.0"

9 G. Firat, "A comparative study of different transformer connections for railway power supply mitigation of voltage unbalance" IEEE 2015