Wavelet based islanding detection of DC-AC inverter interfaced DG systems

M. Hanif, U. D. Dwivedi, M. Basu, K. Gaughan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The increased penetration of distributed generation (DG) often connected to grid through dc-ac interface has made islanding detection an important and challenging issue to power engineers. Several methods based on passive and active detection scheme have been proposed in the literature. While passive schemes have a large non detection zone (NDZ), concern has been raised on active method due to its degrading power quality effect. This paper proposes a wavelet based passive islanding detection scheme with almost zero NDZ for dc-ac inverter interfaced grid connected DGs. The key idea is to utilize the spectral changes in the higher frequency components of PCC voltage occurring after islanding condition. The effectiveness of the proposed method is tested through case studies on a photovoltaic DG system.

Original languageEnglish
Title of host publication2010 45th International Universities' Power Engineering Conference, UPEC 2010
Publication statusPublished - 2010
Event2010 45th International Universities' Power Engineering Conference, UPEC 2010 - Cardiff, United Kingdom
Duration: 31 Aug 20103 Sep 2010

Publication series

NameProceedings of the Universities Power Engineering Conference

Conference

Conference2010 45th International Universities' Power Engineering Conference, UPEC 2010
Country/TerritoryUnited Kingdom
CityCardiff
Period31/08/103/09/10

Keywords

  • Distributed generation
  • Islanding detection
  • Non detection zone
  • Wavelet transform

Fingerprint

Dive into the research topics of 'Wavelet based islanding detection of DC-AC inverter interfaced DG systems'. Together they form a unique fingerprint.

Cite this