Title :
Fiber bragg grating sensor for differential fault detection in overhead power transmission lines
Author :
Moghadas, Amin ; Barnes, Ronald ; Shadaram, Mehdi
Author_Institution :
Univ. of Texas at San Antonio, San Antonio, TX, USA
Abstract :
In this paper, a fiber optic based sensor capable of differential fault detection in power systems is investigated. Bragg wavelength shift, is used to measure fault current in power systems. Magnetic fields generated by currents in overhead transmission lines cause a strain in a magnetostrictive material which is then detected by a Fiber Bragg Grating (FBG). Optical Spectrum Analyzers (OSA) monitor the reflected FBG signals, and the Bragg wavelength shift is calculated. It is shown that the faults in the overhead transmission line cause a detectable wavelength shift from the Fiber Bragg Grating.
Keywords :
Bragg gratings; fault currents; fault diagnosis; fibre optic sensors; power overhead lines; power transmission faults; spectral analysers; Bragg wavelength shift; differential fault detection; fault current; fiber Bragg grating sensor; fiber optic based sensor; magnetic fields; magnetostrictive material; optical spectrum analyzers; overhead power transmission lines; power systems; Current measurement; Fault detection; Optical filters; Optical sensors; Strain; Strain measurement; Vibrations; fiber Bragg grating sensors; magnetic field; magnetostrictive; overhead transmission line;
Conference_Titel :
Energytech, 2011 IEEE
Conference_Location :
Cleveland, OH
Print_ISBN :
978-1-4577-0777-3
Electronic_ISBN :
978-1-4577-0775-9
DOI :
10.1109/EnergyTech.2011.5948520
