适用于高压变压器故障检测的新型光纤光栅传感器

A. Moghadas, M. Shadaram
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引用次数: 2

摘要

本文研究了一种用于高压互感器故障检测的光纤传感器。在电力系统中,布拉格波长位移被用于故障检测。由变压器中的故障电流产生的磁场在磁致伸缩材料中引起应变,然后由光纤布拉格光栅(FBG)检测。光纤Bragg询问器检测反射的光纤光栅信号,计算Bragg波长位移并对信号进行处理。结果表明,变压器一次故障和二次故障都会引起光纤布拉格光栅可检测的波长偏移。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Novel Fiber Bragg Grating sensor applicable for fault detection in high voltage transformers
In this paper, a fiber optic based sensor capable of fault detection in the high voltage transformers is investigated. Bragg wavelength shift is used to detect fault in power systems. Magnetic fields generated by fault currents in the transformer cause a strain in magnetostrictive material which is then detected by Fiber Bragg Grating (FBG). Fiber Bragg interrogator senses the reflected FBG signals, and the Bragg wavelength shift is calculated and signals are processed. It is shown that the faults in both primary and secondary of transformers cause a detectable wavelength shift in the Fiber Bragg Grating.
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