Power current transformer system based on FBG

Author

Xiong, Yanling ; Zhao, Hong ; Wang, Ximing ; He, Jing

Author_Institution

Appl. Sci. Inst., Harbin Univ. of Sci. & Technol., Harbin, China

fYear

2011

fDate

12-16 Oct. 2011

Firstpage

52

Lastpage

54

Abstract

In this paper, an AC current sensing system is established, using optical fiber Bragg grating (FBG) as the sensing probe which is modulated by Giant Magnetostrictive bar. The experiment research on power current signal is carried out by using Coarse Wavelength Division Multiplexer (CWDM) quasi-linear sideband demodulation technology. The results show that the amplitude, frequency and phase information of signal could be well detected in this system. The current waveform of the signal can be accurately reconstructed in real-time by fitting the loop characteristic system transfer function with higher order equations.

Keywords

Bragg gratings; demodulation; electric sensing devices; fibre optic sensors; giant magnetoresistance; magnetostrictive devices; multiplexing equipment; optical transfer function; power transformers; wavelength division multiplexing; AC current sensing; CWDM; coarse wavelength division multiplexer; giant magnetostrictive bar; high-order equations; loop characteristic system transfer function; optical fiber Bragg grating; phase information; power current signal; power current transformer system; quasilinear sideband demodulation technology; Current transformers; Fiber gratings; Magnetic circuits; Magnetic fields; Magnetostriction; Sensors; AC current sensing; CWDM; FBG; Giant Magnetostrictive Material (GMM);

fLanguage

English

Publisher

ieee

Conference_Titel

Optoelectronics and Microelectronics Technology (AISOMT), 2011 Academic International Symposium on

Conference_Location

Harbin

Print_ISBN

978-1-4577-0794-0

Type

conf

DOI

10.1109/AISMOT.2011.6159314

Filename

6159314