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Islanding Detection Technique using Wavelet Energy in Grid-Connected PV System

웨이블렛 에너지를 이용한 태양광 발전시스템의 단독운전 검출 기법

  • Park, Hae-Chan (Dept. of Electrical Eng. Korea Nat'l Univ. of Transportation) ;
  • Kim, Il-Song (Dept. of Electrical Eng. Korea Nat'l Univ. of Transportation)
  • Received : 2015.07.15
  • Accepted : 2015.09.17
  • Published : 2015.10.20

Abstract

The new islanding detection method using wavelet energy is proposed in this paper. The proposed method is based on the autocorrelation of the wavelet energies, which is obtained from the high-frequency components of the grid voltage. It has the enhanced detection capabilities in the UV/OV/UF/OF region, which the conventional passive methods cannot obtain. The mathematical theories on the wavelet are presented, and the performance effectiveness is proved by the experimental results.

Keywords

References

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