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

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
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Calculation of the Area of Vulnerability to Voltage Sags by using Impedance Building Algorithm

임피던스 행렬 구성법을 이용한 순간전압강하 취약지역의 계산

  • 박종일 (부경대학교 전기공학과) ;
  • 박창현 (부경대학교 전기공학과)
  • Received : 2011.10.05
  • Accepted : 2011.12.14
  • Published : 2012.01.31
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Abstract

This paper presents a method to calculate the area of vulnerability by using the impedance building algorithm. The installation of DG (Distributed Generation) is one of the countermeasures against voltage sags in power systems. In order to estimate the effect of the DG, the voltage sag assessment should be performed based on the area of vulnerability and system fault statistics. To determine the area of vulnerability, system impedance matrix should be calculated. The calculation of the impedance matrix of large systems is time-consuming task. This paper addresses an effective scheme to calculate the area of vulnerability and system impedance matrix.

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References

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