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

The Korean Institute of Electrical Engineers (대한전기학회)
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Voltage Estimation Method for Distribution Line with Irregularly Dispersed Load

부하가 불규칙하게 분포된 배전선로의 전압추정 방법

  • Park, Sanghyeon (Dept. of Electrical Engineering, Kyungnam University) ;
  • Lim, Seongil (Dept. of Electrical Engineering, Kyungnam University)
  • Received : 2017.09.11
  • Accepted : 2018.03.08
  • Published : 2018.04.01
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Abstract

Most of the applications for distribution system operation highly rely on the voltage and current managements from the field devices. Voltage from the remote controlled switch contains unacceptably large measurement error due to the nonlinear characteristics of the bushing potential transformer. This paper proposes a new voltage magnitude estimation method by calculating voltage drop using current measurement, line impedance and loads deployment data. Contract demand power and pole transformer capacity managed by NDIS are used as a key element to improve accuracy of the proposed method. Various case studies using Matlab simulation have been performed to verify feasibility of the propose voltage estimation method.

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References

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