Journal of the Korean Institute of Illuminating and Electrical Installation Engineers (조명전기설비학회논문지)

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
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A Study on the Operation of Distribution System for Increasing Grid-Connected Distributed Generation

분산형전원 연계용량 증가를 위한 배전계통 운영방식에 관한 연구

  • 남궁원 (전력연구원 배전연구소) ;
  • 장문종 (전력연구원 배전연구소) ;
  • 이성우 (전력연구원 배전연구소 스마트 그리드 그룹) ;
  • 서동완 (전력연구원 배전연구소)
  • Received : 2014.07.11
  • Accepted : 2014.07.28
  • Published : 2014.09.30
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Abstract

When DG interconnection into network is examined, details of the review are overvoltage, protective device malfunction, etc. In the case of protective device malfunction, replacing protective device into bi-directional protective device and installation NGR are the solution. Overvoltage at interconnection point occurs because the load is relatively less than DG output. When overvoltage at interconnection point occurs, DG interconnection is not permitted because this overvoltage affect other customers. Interconnection by installation new distribution line is one solution but it costs much money. Without installation new investment, change of NOP(Normal Open Point) position is a possible solution about DG interconnection into network.

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References

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