Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Analysis of the Harmonic Resonance of Primary Restorative Transmission System Using PSCAD/EMTDC PART II

PSCADI/EMTDC를 이용한 시송전계통의 고조파 공진현상 분석 II

  • Lee H. J. (Dept. of Electrical Engineering Kwangwoon University) ;
  • Yoo W. K. (Dept. of Electrical Engineering Kwangwoon University) ;
  • Lee K. S. (Dept. of Electrical Engineering Kwangwoon University) ;
  • Park S. M. (Dept. of Electrical Engineering Kwangwoon University)
  • Published : 2004.07.14
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Abstract

The energization of high voltage transmission lines and transformers, that is an inevitable process in most countries as the first restorative action for wide-area blackout, may induce overvoltages such as sustained overvoltage, transient overvoltage and harmonic resonant overvoltage. And these may cause damages to power system equipments or failure of surge arresters. The harmonic resonant overvoltage originates in switching operations and nonlinear characteristics of equipments. Actually it is difficult to predict the occurrence of harmonic overvoltage, since they result from nonlinear characteristics of transformers and other equipments. This paper describes the analysis of domestic primary restorative transmission system using PSCAD/EMTDC. The harmonic resonance is verified and the solution to prevent harmonic resonance is proposed in this paper. As a result, the PSCAD/EMTBC simulation showed slightly conflictive results that had been presented by IEEE Power System Restoration Working Group report.

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