现代电力2012，Vol.29Issue(3)：46-50,5.
基于标准具的XLPE电缆接头光栅测温系统
The FBG Temperature Measurement System for XLPE Cable Connector Based on Etalon
刘安文 1王伟2
作者信息
- 1. 绍兴电力局,浙江绍兴312000
- 2. 华北电力大学新能源电力系统国家重点实验室,北京102206
- 折叠
摘要
Abstract
At present, using FBG to measure the temperature of cable is becoming an important means of on-line monitoring and evaluating the insulation of XLPE cable. In this paper, the principle of demodulating measurement results of FBG by F-P filter is introduced, and the inherent defects of this method is pointed out by experiment. To overcome this defect and to improve the measurement accuracy, an F-P etalon is used to detect the drift of wavelength. The F-P etalon can completely avoid the impact of the nonlinear relationship between filtered wavelength and tuning voltage, which improves the accuracy of the fiber Bragg grating. A system with three-phase 110kV XLPE cable connector is measured in laboratory, and the measurement error can be controlled within ± 0. 4 ℃, which shows that the system has good engineering practicability.关键词
XLPE/标准具/温度/光纤光栅/F-P滤波器Key words
XLPE/ etalon/ temperature/ fiber Bragg grating (FBG)/ F-P filter分类
信息技术与安全科学引用本文复制引用
刘安文,王伟..基于标准具的XLPE电缆接头光栅测温系统[J].现代电力,2012,29(3):46-50,5.
