KU Leuven

Promotor / Supervisor

 Prof. dr. ir. Johan Driesen

Samenvatting van het onderzoek / Summary of Research

Fault Passage Indicator (FPI) is a mature technology that has been broadly deployed in many distribution grids to assist the fault location procedure. In isolated-neutral grids, this deployment has not taken place massively because of the nature of the faults, with high prevalence of self-extinguishing faults. The reliability indexes of a distribution grid are meant to improve year after year with grid upgrades. In the near future, it is expected that FPIs are partially deployed in such grids to improve the reliability indexes.

This thesis aims to provide cost-effective solutions to allow such reliability enhancement with inexpensive FPIs: three different methods to detect the direction in phase-to-ground faults in isolated-neutral grids. The first two methods do not require the installation of voltage sensors, whereas the third method is designed for small current fault detection, using zero-sequence voltage and current measurements.

Volledige tekst van het doctoraat / full text

Examencommissie / Board of examiners

  •   Prof. dr. ir. Johan Driesen (promotor)
  •   Prof. dr. ir. Petrus Verbaeten (voorzitter/chairman)
  •   Prof. dr. ir. Geert Deconinck (secretaris/secretary)
  •   Prof. dr. ir. Ronnie Belmans
  •   Prof. dr. Andreas Sumper , UPC Barcelona and IREC
  •   Dr. Tom De Rybel , University of Canterbury
  •   Prof. dr. Jean Gardy Germain Germain , Gas Natural Fenosa