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

The Korean Institute of Electrical Engineers (대한전기학회)
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Stochastic Estimation of Voltage Sags Based on Voltage Monitoring

전압 모니터링에 기반한 순간전압강하 확률적 추계 방법

  • Son, Jeongdae (Dept. of Electrical Engineering, Pukyong National University) ;
  • Park, Chang-Hyun (Dept. of Electrical Engineering, Pukyong National University)
  • Received : 2018.07.16
  • Accepted : 2018.09.21
  • Published : 2018.10.01
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Abstract

This paper deals with a voltage sag assessment based on a voltage monitoring program. The voltage sag performance at a specific site can be evaluated by analyzing voltage monitoring data recorded for a long time period. Although an assessment based on voltage monitoring is an effective way to understand voltage sag performance at a measurement site, the statistical confidence of voltage sag frequency estimation heavily depends on the length of monitoring period and the number of recorded events. Short monitoring period and insufficient recorded data can not provide a reliable assessment result. This paper proposes a compensation assessment method by combining a computer simulation approach for in case that monitoring period and data are not enough for a valid assessment.

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References

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