F - Mech Eng,Light,Heat,Weapons – 03 – D
Patent
F - Mech Eng,Light,Heat,Weapons
03
D
F03D 1/06 (2006.01) F03D 11/00 (2006.01) G01L 1/24 (2006.01)
Patent
CA 2661098
A load monitoring system for wind turbine blades utilises optical fibre strain sensors (5) moulded into the turbine blades. A sensor monitoring instrument is located in the hub (3) of the turbine. Various arrangements of cabling are disclosed to maximise fault tolerance. Various arrangements of a temperature compensation device for the strain sensors is also disclosed. The strain sensors (5) and optical fibre (7) may be provided on a pre-cured patch (9) for incorporation in the structure of the turbine blade. Furthermore, it is disclosed that each blade comprises an optical fibre strain sensor and a cable to connect the sensors to processing equipment, wherein each such cable includes a connector at each end whereby each blade can be replaced independently. Also, it is shown to provide an output connector for connecting the sensor to processing equipment in a cavity that is filled with a material for inhibiting free movement of the output connector.
La présente invention concerne un système de surveillance de charge pour aubes d'éolienne qui utilise des capteurs de contrainte à fibre optique (5) moulés dans les aubes de la turbine. Un instrument de surveillance de capteur est positionné dans le moyeu (3) de la turbine. Divers agencements de câblage sont décrits pour maximiser la tolérance de défaut. Un dispositif de compensation de température pour les capteurs de contrainte est également décrit. Les capteurs de contrainte (5) et la fibre optique (7) peuvent être prévus sur une pièce pré-traitée (9) destinée à être incorporée dans la structure de l'aube de la turbine.
Gallon Andrew Munro
Harper Nicholas John
Roberts Richard Damon Goodman
Volanthen Mark
Insensys Limited
Shapiro Cohen
LandOfFree
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