SUPERVISION OF CONTROLLER INSTABILITY IN A WIND TURBINE

A wind turbine including a controller configured to periodically enter an Eigen frequency detection mode in which the controller gain is incremented in a controlled manner to detect the Eigen frequencies. During normal operations, the controller output may be monitored to detect the Eigen frequency...

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Bibliographische Detailangaben
1. Verfasser:	MIRANDA, ERIK CARL LEHNSKOV
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS 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 MECHANICAL ENGINEERING OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR 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 WEAPONS WIND MOTORS WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
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Beschreibung
Zusammenfassung:	A wind turbine including a controller configured to periodically enter an Eigen frequency detection mode in which the controller gain is incremented in a controlled manner to detect the Eigen frequencies. During normal operations, the controller output may be monitored to detect the Eigen frequency which, if detected, may allow damage control operations to be undertaken.