Journal of the Korean Solar Energy Society (한국태양에너지학회 논문집)

The Korean Solar Energy Society (한국태양에너지학회)
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A Study of Non-Detection Zone using AFD Method applied to Grid-Connected Photovoltaic Inverter for a variety of Loads

계통연계형 태양광발전 인버터에 사용된 AFD기법의 다양한 부하에 따른 단독운전 불검출영역에 대한 고찰

  • Ko, Moon-Ju (Dept. of Information and Control Eng., Kwangwoon University) ;
  • Choy, Ick (Dept. of Information and Control Eng., Kwangwoon University) ;
  • Choi, Ju-Yeop (Dept. of Electrical Eng., Kwangwoon University)
  • 고문주 (광운대학교 정보제어공학과) ;
  • 최익 (광운대학교 정보제어공학과) ;
  • 최주엽 (광운대학교 전기공학과)
  • Published : 2006.03.31
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Abstract

Islanding phenomenon of utility-connected photovoltaic power conditioning systems(PV PCS) can cause a variety of problems and must be prevented. If the real and reactive power supplied by PV PCS are closely matched to those of load, islanding detection by passive methods becomes difficult. The active frequency drift(AFD) method, called the frequency bias method, enables islanding detection by forcing the frequency of the voltage in the islanding to drift up or down. In this paper, non-detection zone(NDZ) of AFD is analyzed for the islanding detection method of utility-connected PV PCS by the simulation software tool PSIM.

Keywords

References

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