New islanding detection method for inverter-based distributed generation considering its switching frequency

Soo Hyoung Lee, Jung Wook Park

Research output: Contribution to journalArticle

61 Citations (Scopus)

Abstract

Islanding detection is one of the most important issues for the distributed generation (DG) systems connected to an electric power grid. The conventional passive islanding detection methods inherently have a nondetection zone (NDZ), and active islanding detection methods might cause problems with safety, reliability, stability, and power quality on a power system. This paper proposes a passive islanding detection method with the zero NDZ property by considering the switching frequency from an inverter of the DG system. Moreover, the proposed method does not cause any negative effects in the aforementioned problems because it avoids applying the intended changes such as variations of reactive power and/or harmonics, which are required in the active islanding detection methods. Several case studies are carried out to verify that the proposed method can detect the islanding operation within 20 ms, which is less than 150 ms required in a recloser as the shortest mechanical reclosing (delay) time. Moreover, this value satisfies the requirement of 2 s given in IEEE Std. 1547.

Original languageEnglish
Article number5462867
Pages (from-to)2089-2098
Number of pages10
JournalIEEE Transactions on Industry Applications
Volume46
Issue number5
DOIs
Publication statusPublished - 2010 Sep 1

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Distributed power generation
Switching frequency
Power quality
Reactive power
Time delay

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

Cite this

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New islanding detection method for inverter-based distributed generation considering its switching frequency. / Lee, Soo Hyoung; Park, Jung Wook.

In: IEEE Transactions on Industry Applications, Vol. 46, No. 5, 5462867, 01.09.2010, p. 2089-2098.

Research output: Contribution to journalArticle

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