Novel Islanding Detection Method using Frequency Drift for Grid-connected PV System

계통연계형 태양광발전 시스템의 주파수 변동에 의한 새로운 고립운전 검출기법

  • 은석준 (경북대학교 대학원 전기공학과) ;
  • 김흥근 (경북대학교 전자전기공학부) ;
  • 최종우 (경부대학교 전자전기공학부) ;
  • 이동춘 (영남대학교 전기공학과)
  • Published : 2005.06.01

Abstract

PV system's islanding occurs when the uitilty grid is removed but local sources continue to operate and provide power to local loads. Islanding is one of the serious problems in an electric power system connected with dispersed power sources. Also, this can present safety hazards and the possibility of damage to other electric equipments. If the real and reactive power of RLC load and PV system are closely matched, islanding detection by passive methods becomes difficult. This paper shows the simulation and comparision for the previous active methods and novel islanding detection method using frequency drift is proposed for grid-connected PV system.

Keywords

References

  1. M.E. Ropp, 'Analysis and Performance Assessment Of the Active Frequency Drift Method Of Islanding Prevention', IEEE Transactions on Energy Conversion, Vol. 14, No. 3, pp, 811-816, 1999 https://doi.org/10.1109/60.790956
  2. Evaluation of Islanding Detection Methods for Photovoltaic Utility interactive Power Systems, IEA - PVPS Report, IEA - PVPS T5-09: March 2002
  3. IEEE Std. 929-2000, IEEE Recommended Practice for Utility Interface of Photovoltaic(PV) Systems, Sponsored by IEEE Standards coordinating Commitee 21 on Photovoltaics, Published by IEEE, New York, NY, Apr. 2000
  4. Hiromu Kobayashi, Kiyoshi Takigawa, 'Statical Evaluation of Optimum Islanding Preventing Method for Utility Interactive Small Scale Dispersed PV systems', Proceedings of the IEEE World Conference on Photovoltaic Energy Convesion (1994), pp. 1085-1088, 1994
  5. Kobayashi. H., Takigawa. K., Hashimoto. E., 'Method for Preventing Islanding Phenomenon on Utility Grid with a Number of Small Scale PV systems', Twenty Second IEEE PVPS, pp. 695-700, 1991 https://doi.org/10.1109/PVSC.1991.169299
  6. Kiyoshi Takigaya, Hiromu Kobayashi, 'Development of Compact and Reliable Protective Control Unit for Grid Connected Small Residential Systems'
  7. G. Kern, 'SunSine300: Utility Interactive AC Module Anti-Islanding Test Results', Proceedings of the 1997 IEEE Photovoltaic Specialists Conference, Anaheim, CA https://doi.org/10.1109/PVSC.1997.654318
  8. 김용균, 최종우, 김흥근, '계통연계형 태양광발전 시스템의 위상동기화를 위한 디지털 PLL'. 전기학회 논문지 53권 9호, pp. 562-568, 2004
  9. 은석준, 최종우, 김흥근, '태양광발전 시스템의 단독운전 검출법 비교,' 전력전자 하계학술 대회 논문집, pp. 92-96, 2004. 7