WIND TURBINE AND A METHOD FOR DETERMINING THE PRESENCE AND/OR THICKNESS OF AN ICE LAYER ON A BLADE BODY OF A WIND TURBINE

A wind turbine comprising an elongated blade body, a system for detecting an ice layer on the blade body, the system comprising a light source for emitting a light beam; a light splitting optical element optically connected to the light source so as to receive the light beam emitted from the light s...

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Bibliographische Detailangaben
Hauptverfasser:	KIM WHYE GHEE, LIM LI HONG IDRIS, CHONG KOK LEONG, CHANG YUN CHONG GABRIEL
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING DETECTING MASSES OR OBJECTS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GEOPHYSICS GRAVITATIONAL MEASUREMENTS HEATING INDEXING SCHEME RELATING TO MACHINES OR ENGINES OTHER THANNON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, TO WIND MOTORS,TO NON-POSITIVE DISPLACEMENT PUMPS, AND TO GENERATING COMBUSTIONPRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUSSUBCLASSES OF CLASSES F01-F04 LIGHTING MACHINES OR ENGINES FOR LIQUIDS MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS MECHANICAL ENGINEERING OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR PHYSICS PRODUCING MECHANICAL POWER REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TESTING WEAPONS WIND MOTORS WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
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Beschreibung
Zusammenfassung:	A wind turbine comprising an elongated blade body, a system for detecting an ice layer on the blade body, the system comprising a light source for emitting a light beam; a light splitting optical element optically connected to the light source so as to receive the light beam emitted from the light source, the optical element adapted to split the light beam received from the light source into a reference light beam and a detecting light beam, a boundary area which is arranged at the blade body so as to be exposed to the outer surroundings of the blade body and which is optically connected to the light splitting optical element such as to receive the detecting light beam and to reflect an internal reflected part of the detecting light beam at the boundary area and to transmit a transmitting part of the detecting light beam to the outer surroundings of the blade body through the boundary area and to allow an external reflected part of the transmitting part of the detecting light beam, which has been reflected from outside of the blade body, to be re-transmitted through the boundary area, a light measuring device optically connected to the light splitting optical element so as to receive the reference light beam, the internal reflected part of the detecting light beam and the external reflected part of the detecting light beam, wherein the light measuring device is configured to analyze the received light and to determine the presence and/or thickness of an ice layer on the blade body dependent on the analysis.