Design and Experiment of FBG-Based Icing Monitoring on Overhead Transmission Lines with an Improvement Trial for Windy Weather

Sensors

Min Zhang¹  Yimeng Xing²  Zhiguo Zhang² 

[1] State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China;

关键词: overhead power transmission line;    ice monitoring;    fiber Bragg grating (FBG);    strain sensor;   

DOI  :  10.3390/s141223954

来源: mdpi

【 摘 要 】

A scheme for monitoring icing on overhead transmission lines with fiber Bragg grating (FBG) strain sensors is designed and evaluated both theoretically and experimentally. The influences of temperature and wind are considered. The results of field experiments using simulated ice loading on windless days indicate that the scheme is capable of monitoring the icing thickness within 0–30 mm with an accuracy of ±1 mm, a load cell error of 0.0308v, a repeatability error of 0.3328v and a hysteresis error is 0.026%. To improve the measurement during windy weather, a correction factor is added to the effective gravity acceleration, and the absolute FBG strain is replaced by its statistical average.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.