Development of power system protection based on optical current measurement

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Abstract

A theoretical evaluation of a novel, all-optical
differential current protection scheme employing low voltage
piezoelectric transducers, fiber Bragg grating sensors and
Rogowski coils is presented in this paper. The optical power
reflected from the sensors is monitored by means of a single
photodetector, whereas fault occurrence is detected by a simple
optoelectronic threshold detector. We demonstrate through
simulations that an immediate response to an increase in
differential current can be achieved even at low voltage levels
such as these generated by Rogowski coils providing a low-cost
and fast-acting fault detection system.
Original languageEnglish
Number of pages4
Publication statusPublished - 2013
Event48th Universities' Power Engineering Conference (UPEC 2013) - Dublin, Ireland
Duration: 2 Sep 20135 Sep 2013

Conference

Conference48th Universities' Power Engineering Conference (UPEC 2013)
CountryIreland
CityDublin
Period2/09/135/09/13

Keywords

  • optical current measurement
  • power system protection

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