Mobile QR Code QR CODE : The Transactions P of the Korean Institute of Electrical Engineers
The Transactions P of the Korean Institute of Electrical Engineers

Korean Journal of Air-Conditioning and Refrigeration Engineering

ISO Journal TitleTrans. P of KIEE
  • Indexed by
    Korea Citation Index(KCI)

Journal Search

  1. Home
  2. Archive
  3. 2018-09(Vol.67P No.03)
XML PDF INFO REF
Title Analysis for Pole to Ground Fault Detection in Ungrounded LVDC Distribution Network
Authors 박철원(Chul-Won Park)
DOI http://doi.org/10.5370/KIEEP.2018.67.3.119
Page pp.119-124
ISSN 1229-800X
Keywords LVDC ; IT ground system ; Pole to ground fault ; Signal injection method ; Ungrounded system
Abstract Recently, LVDC distribution network and DC microgrid with many advantages are being built. However, this LVDC distribution is an IT grounded or ungrounded system, and it is difficult to detect a ground fault because the fault current is small. In this paper, we propose a signal injection method for unipolar LVDC distribution network to detect ground fault in ungrounded LVDC distribution, and various analyzes were performed for ground fault detection.