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Proceedings Paper

Long term reliability and machine operation diagnosis with fiber optic sensors at large turbine generators
Author(s): T. Bosselmann; S. Strack; M. Villnow; J. R. Weidner; M. Willsch
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Paper Abstract

The increasing quantity of renewable energy in electric power generation leads to a higher flexibility in the operation of conventional power plants. The turbo generator has to face the influence of frequent start-stop-operation on thermal movement and vibration of the stator end windings. Large indirect cooled turbo generators have been equipped with FBG strain and temperature sensors to monitor the influence of peak load operation. Fiber optic accelerometers measure the vibration of the end windings at several turbine generators since many years of operation. The long term reliability of fiber optic vibration, temperature and strain sensors has been successfully proved during years of online operation. The analysis of these data in correlation to significant operation parameter lead to important diagnostic information.

Paper Details

Date Published: 20 May 2013
PDF: 5 pages
Proc. SPIE 8794, Fifth European Workshop on Optical Fibre Sensors, 87943Y (20 May 2013); doi: 10.1117/12.2024987
Show Author Affiliations
T. Bosselmann, SIEMENS AG (Germany)
S. Strack, SIEMENS AG (Germany)
M. Villnow, SIEMENS AG (Germany)
J. R. Weidner, SIEMENS AG (Germany)
M. Willsch, SIEMENS AG (Germany)

Published in SPIE Proceedings Vol. 8794:
Fifth European Workshop on Optical Fibre Sensors
Leszek R. Jaroszewicz, Editor(s)

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