摘要:
A method 160 of controlling a wind turbine 10 includes obtaining 166 weather data indicative of one or more weather conditions at the wind turbine, estimating 168 wake profiles based on the obtained weather data, estimating 170 far-field sound propagation in a direction of a noise sensitive site based on the estimated wake profiles, generating a yaw signal, wherein the yaw signal controls the yaw of a nacelle relative to a tower 12 of the wind turbine 10, estimating 180 a noise level at the noise sensitive site, and adjusting 182 the yaw signal if the estimated noise level at the noise sensitive site exceeds a threshold noise level.
摘要:
In a state monitoring system for a wind turbine generator, a first buffer 44 repeats overwrite of data regarding a lightning strike parameter and accumulate the data temporarily. A first trigger signal output part 46 outputs a first trigger signal when the lightning strike parameter exceeds a threshold. A memory part 48 acquires and accumulates at least a part of the data regarding the lightning strike parameter of a period from the first buffer 44, the period including before and after an output time of the first trigger signal. A reference value estimation part 50 estimates a reference value of the lightning strike parameter based on a first data corresponding to a first period before the output time of the first trigger signal among the data stored in the memory part 48. A damage state estimation part 52 estimates a damage state of the blade 21 based on a second data of after the output time of the first trigger by considering the reference value.
摘要:
A method (100) for controlling the amplitude modulation of noise generated by a wind turbine (10) is disclosed. The method (100) may generally include determining an angle of attack (54) of a rotor blade (12) of a wind turbine (10) and maintaining the angle of attack (54) at a substantially constant value during rotation of the rotor blade (12) in order to reduce the amplitude modulation of the noise generated by the wind turbine (10).
摘要:
According to the present disclosure, a method of operating a wind turbine (10) coupled to a power grid (92) for delivering electric power thereto is provided. The method includes: a) operating the wind turbine (10) in a noise reduction mode; b) determining whether the power grid (92) is in an unstable grid state corresponding to an increase of power demand; and, c) increasing the electric power delivered by the wind turbine (10) to the power grid (92) during a stabilization time period for supporting stabilization of the unstable grid. Further, the increasing of the electric power for supporting stabilization of the unstable grid is performed such that a resulting noise increase is below a selected upper level. In addition thereto, a control system and a wind turbine for performing the above method are provided.
摘要:
A system (10) is provided for estimating a condition of a non-conductive hollow structure exposed to a lightning strike (18). The structure has an internal cavity (20). The system (10) includes a pressure transducer (22) to measure a pressure (23) of an acoustic wave (24) generated within the internal cavity (20) due to the lightning strike (18). The system (10) further includes a controller (26) coupled to the pressure transducer (22), to receive the measured pressure (23) from the pressure transducer (22), and to process the condition of the structure, based on the measured pressure (23).
摘要:
The invention describes a method of optimising a wind park construction, which wind park (2) comprises at least a first wind turbine (4) and a second wind turbine (6, 6'), wherein a first blade topology (44) is selected for the first wind turbine (4) depending on a noise optimisation parameter which is measured and/or predicted at a reference position (24) at a distance (D) from the wind park (2), and a second blade topology (46) is selected for the second wind turbine (6, 6') depending on an energy efficiency optimisation parameter. The invention also describes a wind turbine (4, 6, 6') for such a wind park (2) and a wind park (2) comprising at least such a first wind turbine (4) and a second wind turbine (6, 6').
摘要:
A wind turbine (10) comprising at least one turbine (24), a generator (26) configured for converting torque into electrical power, and a controller (40) capable of comparing a wind turbine (10) acoustical profile and a wind turbine (10) power profile to determine a noise reduced operational condition, the controller (40) further being capable of controlling the wind turbine (10) to provide a rotor speed and the pitch angle of the turbine (24) corresponding to the noise reduced operational condition.
摘要:
An apparatus for controlling an acoustic emission of a wind turbine (10) that includes a rotor (18) having at least one rotor blade (24) is provided. The apparatus including at least one sensor (46) operatively coupled to the wind turbine, the sensor configured to detect an atmospheric condition, and a control system (30) communicatively coupled to the sensor, and configured to control operation of the wind turbine to adjust the acoustic emission of the wind turbine based on the atmospheric condition.
摘要:
Die Erfindung betrifft ein Verfahren und eine Anordnung zum Überwachen des Betriebs einer Windenergieanlage (14), wobei die Windenergieanlage (14) einen Rotor (10) mit einer Mehrzahl von Rotorblättern (11, 12, 13) aufweist. Das Verfahren umfasst die Schritt folgenden Schritten: a. Aufzeichnen von durch die Bewegung des Rotors (10) erzeugtem Luftschall; b. Herstellen einer Zuordnung zwischen Ausschnitten (31, 32, 33) des aufgezeichneten Schalls und dem von einzelnen Rotorblättern (11, 12, 13) erzeugten Luftschall; c. Vergleichen des Luftschalls eines Rotorblatts (11, 12, 13) mit dem Luftschall eines anderen Rotorblatts (11, 12, 13). Die erfindungsgemäße Anordnung umfasst eine Auswerteeinheit und ein Logikmodul, die dazu ausgelegt sind, diese Verfahrensschritte durchzuführen. Durch die Erfindung kann auf kostengünstige und zuverlässige Weise eine Aussage getroffen werden, ob eines der Rotorblätter (11, 12, 13) des Rotors (10) fehlerhaft ist.