The Transactions of the Korean Institute of Power Electronics (전력전자학회논문지)

The Korean Institute of Power Electronics (전력전자학회)
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Analysis of Output Voltage Variation of a Voltage Disturbance Generator according to the Load Power Factor in Voltage Sag and Swell Mode

전압 새그 및 스웰 발생 모드에서 부하역률에 따른 전압외란 발생기의 출력전압 변동 해석

  • Han, Heung-Soo (Dept. of Electrical Eng., Pukyong National University) ;
  • Jeong, Hye-Soo (Dept. of Electrical Eng., Pukyong National University) ;
  • Jung, Jae-Hun (Dept. of Electrical Eng., Pukyong National University) ;
  • Nho, Eui-Cheol (Dept. of Electrical Eng., Pukyong National University) ;
  • Kim, Heung-Geun (Dept. of Electrical Eng., Kyungpook National University) ;
  • Chun, Tae-Won (Dept. of Electrical Eng., University of Ulsan)
  • Received : 2015.11.19
  • Accepted : 2016.01.04
  • Published : 2016.02.20
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Abstract

This study investigates output voltage variation of a voltage disturbance generator in case of sag and swell modes. The generator uses series transformers and silicon-controlled rectifier thyristors to provide voltage disturbance; consequently, voltage drop at the output terminal is inevitable. On the basis of the analysis, voltage drop increases as the power factor decreases in lagging. Voltage drop is 3.7 [%] at a power factor (lagging) of 0.8. Simulation and experimental results show the validity of the analysis.

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References

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