Design of Fiber Bragg Grating load sensor used in ice monitoring on overhead transmission lines

Author

Ma, Guo-ming ; Li, Cheng-rong ; Jiang, Jian ; Quan, Jiang-Tao ; Cheng, Yang-chun

Author_Institution

Beijing Key Lab. of High Voltage & EMC, North China Electr. Power Univ., Beijing, China

fYear

2010

fDate

11-14 Oct. 2010

Firstpage

232

Lastpage

235

Abstract

Icing of high voltage transmission lines poses a great threat to the safety of the power grid. A Fiber Bragg Grating (FBG) load sensor is developed to monitor the load of the conductor. The major factor affecting the accuracy of the sensor is the structure of elastic element, and a novel closed-loop U structure is proposed to improve the accuracy. Finite Element Method (FEM) is introduced to investigate the strain distribution on the traditional structure and novel structure under axial load and eccentric load. The results of load experiment carried out in our laboratory indicate the sensor sensitivity is 0.0407pm/N and the sensor resolution is 24.57N.

Keywords

Bragg gratings; fibre optic sensors; finite element analysis; ice; optical fibres; power grids; power overhead lines; power system security; elastic element; fiber bragg grating load sensor design; finite element method; high voltage transmission lines; ice monitoring; overhead transmission lines; power grid safety; Fiber gratings; Finite element methods; Strain; Temperature measurement; Temperature sensors;

fLanguage

English

Publisher

ieee

Conference_Titel

High Voltage Engineering and Application (ICHVE), 2010 International Conference on

Conference_Location

New Orleans, LA

Print_ISBN

978-1-4244-8283-2

Type

conf

DOI

10.1109/ICHVE.2010.5640821

Filename

5640821