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

  • 제20권8호
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  • Pages.48-53
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  • 2006
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  • 1229-4691(pISSN)
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  • 2287-5034(eISSN)
한국조명전기설비학회 (The Korean Institute of IIIuminating and Electrical Installation Engineers)
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전기로 부하에서 SVC의 플리커 효과에 관한 연구

A Study on the Fliker Effect of SVC in Electric Arc Furnace Loads

  • 발행 : 2006.09.30
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⟨ 이전 논문 다음 논문 ⟩

초록

제철소에서 사용되고 있는 전기로는 전력계통에 전압 변동을 일으키며 시간에 따라 변하는 비선형 부하이다. 플리커는 전압 변동의 크기에 따라 램프의 방출 변화에 의한 인간의 지각 효과로 정의된다. 플리커 레벨은 전압 변동의 크기, 주파수 및 기간에 의해 결정된다. 본 논문에서는 전기로 부하로 인한 154[kV] 시스템에서의 전압 변동 문제를 측정하고, 플리커 저감을 위한 SVC 적용 결과를 분석하고, IEC 61000-3-7에 의하여 플리커를 평가하였다.

An electric arc furnace being used in the steel industry is a time-varying non-linear load causing voltage fluctuations to the power system. Flicker can be defined as the effect produced on the human visual perception by a changing emission of light lamps subjected to magnitude fluctuations of their supply voltage. The level of flicker depends on the amplitude, frequency and duration of the voltage fluctuations. In this paper, the voltage fluctuation problem in an 154[kV] system due to the electric arc furnace loads is investigated and the analysis results of the static var compensator application for the voltage flicker mitigation are presented and evaluated by the IEC 61000-3-7.

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참고문헌

  1. R. C. Dugan, and et al., 'Electrical Power Systems Quality', McGraw-Hill Co., 2003
  2. IEC 61000-4-15, 'Flickermeter-Functional and Design Specification', 2003
  3. PNA-2010, 'Power Network Analyzer', Chauvin Arnoux Co., 2004
  4. T. Larsson and et al., 'SVC Light : A Utility's Aid to Restructuring its Grid', 2000 IEEE Power Engineering Society Winter Meeting
  5. B. Depommier and J. Stauley, 'Static Var Compensator Upgrade in a Steel Mill', 2003 IEEE Power Engineering Society General Meeting
  6. Z. Zhang and et al., 'Flicker Analysis and Methods for Electric Arc Furnace Flicker Mitigation', 2001 IEEE Porto Power Tech Conference
  7. IEC 61000-3-7, 'Assessment of Emission Limits for Fluctuating Loads in MV and HV Power Systems', 2003
  8. S. M. Halpin, et al., 'Voltage and Lamp Flicker Issues : Should the IEEE Adopt the IEC Approach?', IEEE Transactions on Power Delivery July 2003
  9. IEEE Std. 1453-2004, 'IEEE Recommended Practice for Measurement and Limits of Voltage Fluctuations and Associated Light Flicker on AC Power Systems'