Title :
FBG power current transformer based on CWDM demodulate
Author :
Xiong, Yanling ; Zhao, Hong ; Zhao, Lei ; Li, Xiaojun ; Shen, Tao
Author_Institution :
Key Lab. of Eng. Dielectric, Harbin Univ. of Sci. & Technol., Harbin, China
Abstract :
A power current transformer set-up is established in this paper, the magnetic circuit system is composed of magnetic materials, Terfenol-D bar and fiber bragg grating (FBG); the characteristic sizes of the materials in the set-up are optimized using finite element analysis method; the experimental study of power current signal is carried out by using coarse wavelength division multiplexer (CWDM) linear edge filter demodulation technology; the current sensitivity of the transformer system is 2.44 mV/A in the unbiased magnetic field, the relative error is less than 1.3%.
Keywords :
Bragg gratings; current transformers; power transformers; wavelength division multiplexing; CWDM demodulate; FBG power current transformer; Terfenol-D bar; coarse wavelength division multiplexer; fiber bragg grating; finite element analysis method; linear edge filter demodulation technology; Bragg gratings; Current transformers; Fiber gratings; Finite element methods; Magnetic analysis; Magnetic circuits; Magnetic materials; Optimization methods; Signal analysis; Wavelength division multiplexing; Fiber grating; Giant magnetostrictive; Power current;
Conference_Titel :
Properties and Applications of Dielectric Materials, 2009. ICPADM 2009. IEEE 9th International Conference on the
Conference_Location :
Harbin
Print_ISBN :
978-1-4244-4367-3
Electronic_ISBN :
978-1-4244-4368-0
DOI :
10.1109/ICPADM.2009.5252439
