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

The Korean Institute of Electrical Engineers (대한전기학회)
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Current Measurement based Reactive Power Control to Mitigate Overvoltage of Primary Distribution Line

배전선로 규정전압 유지를 위한 전류 측정치 기준의 무효전력 제어방법

  • Hwang, Jihui (Dept. of Electrical Engineering, Kyungnam University) ;
  • Lim, Seongil (Dept. of Electrical Engineering, Kyungnam University)
  • Received : 2017.04.12
  • Accepted : 2017.09.26
  • Published : 2017.11.01
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Abstract

Due to the high penetration ratio of dispersed generations, overvoltage problem of the feeder has become more an important issue in distribution system operation. This paper proposes a new method for the smart inverter to control reactive power to mitigate voltage rise by the reverse power flow from the DGs. The proposed method controls reactive power based on current measurement while conventional methods use voltage measurement which include unacceptably large errors. Various case studies using MATLAB simulation have been performed to verify effectiveness of proposed method.

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References

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