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

The Korean Institute of Electrical Engineers (대한전기학회)
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A Study on the Customer Voltage Characteristic of Distribution System with Large Scale PV

대용량 태양광발전이 연계된 배전계통의 수용가 전압 특성해석에 관한 연구

  • Kim, Byung-Ki (Dept. of Electrical Engineering, Korea University of Technology) ;
  • Ryu, Kyung-Sang (Dept. of Electrical Engineering, Korea University of Technology) ;
  • Kim, Chan-Hyeok (Dept. of Electrical Engineering, Korea University of Technology) ;
  • Rho, Dae-Seok (Dept. of Electrical Engineering, Korea University of Technology)
  • 김병기 (한국기술교육대학교 전기전자통신공학과 전기공학전공) ;
  • 유경상 (한국기술교육대학교 전기전자통신공학과 전기공학전공) ;
  • 김찬혁 (한국기술교육대학교 전기전자통신공학과 전기공학전공) ;
  • 노대석 (한국기술교육대학교 전기전자통신공학과 전기공학전공)
  • Received : 2012.10.04
  • Accepted : 2012.12.20
  • Published : 2013.01.01
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Abstract

This paper deals with the analysis of the customer voltage characteristic in distribution system interconnected with large scale PV system. There would be many power quality issues which are caused by reverse power flow of PV system interconnected with distribution system. In order to analyze the effect of PV system on the customer voltage, detailed modeling method of distribution system and modified modelling method of PV system are proposed using PSCAD/EMTDC in this paper. So far, less than dozens KW of PV system can be simulated with the existing modelling method. Therefore, a new modeling method which can simulate the large scale PV system is proposed by considering the relationship equation on the phase and voltage in the current control algorithm. From the simulation result of proposed modelling method, it is confirmed that an optimal operation method in distribution system is suggested by analyzing the effect of PV system on customer voltage.

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References

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