Title :
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
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;
Conference_Titel :
High Voltage Engineering and Application (ICHVE), 2010 International Conference on
Conference_Location :
New Orleans, LA
Print_ISBN :
978-1-4244-8283-2
DOI :
10.1109/ICHVE.2010.5640821
