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公开(公告)号:USD906964S1
公开(公告)日:2021-01-05
申请号:US29625833
申请日:2017-11-13
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公开(公告)号:US11220993B2
公开(公告)日:2022-01-11
申请号:US15574290
申请日:2016-04-15
摘要: A method using machine learned, scenario based control heuristics including: providing a simulation model for predicting a system state vector of the dynamical system in time based on a current scenario parameter vector and a control vector; using a Model Predictive Control, MPC, algorithm to provide the control vector during a simulation of the dynamical system using the simulation model for different scenario parameter vectors and initial system state vectors; calculating a scenario parameter vector and initial system state vector a resulting optimal control value by the MPC algorithm; generating machine learned control heuristics approximating the relationship between the corresponding scenario parameter vector and the initial system state vector for the resulting optimal control value using a machine learning algorithm; and using the generated machine learned control heuristics to control the complex dynamical system modelled by the simulation model.
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公开(公告)号:US11384732B2
公开(公告)日:2022-07-12
申请号:US16927232
申请日:2020-07-13
发明人: Michael J. Asheim , Steven Buck
摘要: Provided is a noise reduction means for a wind turbine blade comprising an active noise reduction device and a passive noise reduction device, wherein the passive noise reduction device comprises at least one serrated edge profile adapted for fixation to a trailing edge of the wind turbine blade, wherein the active noise reduction device comprises at least one unsteady pressure sensor adapted to produce an output signal corresponding to a turbulent flow condition during operation of the wind turbine blade, at least one actuator and a control unit, wherein the sensor is arranged adjacent to a serrated edge of the serrated edge profile and the control unit is adapted to control the actuator in dependence of the output signal of the sensor to emit an anti-noise signal at least partly reducing the noise generated by the wind turbine blade.
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公开(公告)号:US20220010774A1
公开(公告)日:2022-01-13
申请号:US16927232
申请日:2020-07-13
发明人: Michael J. Asheim , Steven Buck
摘要: Provided is a noise reduction means for a wind turbine blade comprising an active noise reduction device and a passive noise reduction device, wherein the passive noise reduction device comprises at least one serrated edge profile adapted for fixation to a trailing edge of the wind turbine blade, wherein the active noise reduction device comprises at least one unsteady pressure sensor adapted to produce an output signal corresponding to a turbulent flow condition during operation of the wind turbine blade, at least one actuator and a control unit, wherein the sensor is arranged adjacent to a serrated edge of the serrated edge profile and the control unit is adapted to control the actuator in dependence of the output signal of the sensor to emit an anti-noise signal at least partly reducing the noise generated by the wind turbine blade.
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公开(公告)号:US11181093B2
公开(公告)日:2021-11-23
申请号:US15300316
申请日:2014-07-30
发明人: Michael J. Asheim , Kristoffer Ahrens Dickow , Peder Bay Enevoldsen , Alex Loeven , Valerio Lorenzoni , Stefan Oerlemans , Anders Smaerup Olsen , Bodo Richert , Manjinder J. Singh , Sigmund Wenningsted Torgard
IPC分类号: F03D1/06
摘要: A rotor blade for a wind turbine is provided. The rotor blade includes a pressure side, a suction side, a leading edge section with a leading edge, and a trailing edge section with a trailing edge. An airflow flows along the surface of the rotor blade from the leading edge section to the trailing edge section and builds up a boundary layer in close proximity to the surface of the rotor blade. The rotor blade includes a noise reduction device for reducing noise which is generated by interaction of the airflow and the rotor blade. The noise reduction device is located within the boundary layer of the rotor blade. The noise reduction device includes a cover and connection device for connecting the cover to the surface of the rotor blade. The cover spans at least over a part of the surface of the rotor blade.
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公开(公告)号:US11002246B2
公开(公告)日:2021-05-11
申请号:US16093843
申请日:2016-11-22
摘要: A rotor blade for a wind turbine, wherein the rotor blade includes serrations along at least a portion of the trailing edge section of the rotor blade is provided. The serrations include a first tooth and at least a second tooth, wherein the first tooth is spaced apart from the second tooth. Furthermore, the area between the first tooth and the second tooth is at least partially filled with a plurality of comb elements, wherein the comb elements are arranged substantially parallel to each other and in substantially chordwise direction of the rotor blade such that generation of noise in the trailing edge section of the rotor blade is reduced. The rotor blade is further characterized in that it includes a plurality of ridges including a first ridge and at least a second ridge for manipulating an airflow which is flowing along the ridges.
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