The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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Method to Estimate Expected Sag Frequency Considering the Operating Condition of Power System

전력계통 운전조건을 고려한 순간전압강하 추계 방법

  • Son, Jeongdae (Dept. of Electrical Engineering, Pukyong National University) ;
  • Lee, Kyebyung (School of Electrical Engineering, Korea University) ;
  • Park, Chang-Hyun (Dept. of Electrical Engineering, Pukyong National University)
  • Received : 2015.12.14
  • Accepted : 2016.02.05
  • Published : 2016.03.01
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Abstract

This paper deals with the assessment of voltage sags regarding the variation of system operating conditions. In general, voltage sag assessment is performed by assuming the constant operating condition throughout the year. However, the assumption can lead to assessment errors in case of considerable changes of system operation condition. This paper presents a method to estimate ESF(expected sag frequency) considering the operating conditions according to the changes of power demand throughout the year.

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References

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