Fiber Bragg grating temperature sensing system for large air cooled hydrogenerators

Author

Werneck, Marcelo M. ; Allil, Regina C S B ; Ribeiro, Bessie A.

Author_Institution

Fed. Univ. of Rio de Janeiro, Rio de Janeiro, Brazil

fYear

2011

fDate

Nov. 28 2011-Dec. 1 2011

Firstpage

329

Lastpage

334

Abstract

This paper describes the research, project, construction, calibration, installation and operation of a fiber Bragg grating based fiber-optic system applied to a hydro-electric generator to perform a continuous monitoring of temperature. After being deployed for two and a half years, the system has proved itself to be capable of reliably and accurately measuring and monitoring temperatures inside the generator, while taking into consideration the harsh environment of the stator. The results were considered satisfactory, demonstrating the usefulness of the fiber-optic system in power generation equipment.

Keywords

Bragg gratings; hydroelectric generators; optical fibres; stators; temperature measurement; air cooled hydrogenerators; continuous monitoring; fiber Bragg grating based fiber-optic system; fiber Bragg grating temperature sensing system; fiber-optic system; hydro-electric plants; power generation equipment; stator; Fiber gratings; Generators; Optical fiber sensors; Optical fibers; Temperature measurement; Temperature sensors; Fiber Bragg grating; fiber-optic sensor; hydro-electric plant; power generator; temperature measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Sensing Technology (ICST), 2011 Fifth International Conference on

Conference_Location

Palmerston North

ISSN

2156-8065

Print_ISBN

978-1-4577-0168-9

Type

conf

DOI

10.1109/ICSensT.2011.6136994

Filename

6136994