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Analysis of Customer Power Quality Characteristics Using PV Test Devices

태양광전원 계통연계시험장치에 의한 수용가 전력품질특성에 관한 연구

  • Kim, Byungmok (Division of Electric Electronic Information Communication, Korea University of Technology and Education) ;
  • Kim, Byungki (Division of Electric Electronic Information Communication, Korea University of Technology and Education) ;
  • Park, Jeabum (Division of Electric Electronic Information Communication, Korea University of Technology and Education) ;
  • Rho, Daeseok (Division of Electric Electronic Information Communication, Korea University of Technology and Education)
  • 김병목 (한국기술교육대학교 전기전자통신공학부) ;
  • 김병기 (한국기술교육대학교 전기전자통신공학부) ;
  • 박재범 (한국기술교육대학교 전기전자통신공학부) ;
  • 노대석 (한국기술교육대학교 전기전자통신공학부)
  • Received : 2011.09.02
  • Accepted : 2011.11.28
  • Published : 2011.12.31

Abstract

Recently, new distributed power sources such as photovoltaic, wind power, fuel cell systems etc. are energetically interconnected and operated in the distribution feeders, as one of the national projects for alternative energy. When new power sources are considered to be interconnected to distribution systems, bi-directional power flow and interconnection conditions of new power sources may cause several power quality problems like voltage sag, voltage swell, harmonics, since new power sources can change typical characteristics of distribution systems. Under these situations, this paper deals with the analysis the power quality problems at primary and secondary feeders in distribution systems, when new power sources like photovoltaic (PV) systems are interconnected, by using the test devices for PV systems based on the LabVIEW S/W. This paper presents the test device which is consisted with model distribution system and model PV systems. By performing the simulation for power quality operation characteristic based on the test facilities, this paper presents the optimal countermeasures for power quality.

Keywords

Convergence: Society;PV;Quality;Characteristics