-
公开(公告)号：US11225948B2
公开(公告)日：2022-01-18
申请号：US16772209
申请日：2018-12-12
Applicant: Vestas Wind Systems A/S
Inventor： Thomas S. Bjertrup Nielsen
Abstract: A wind energy farm (1) comprising at least one first wind turbine (2) and at least one second wind turbine (3) is disclosed. Each wind turbine (2, 3) comprises a tower (7) mounted on a foundation, and at least one rotor (9) with a hub carrying a set of wind turbine blades (10). The at least one first wind turbine (2) is provided with at least three stay cables (4), each stay cable (4) being connected at one end to the tower (7) of said at least one first wind turbine (2) and at the other end to a stay cable foundation. At least one of the stay cable foundations and the foundation of one of said at least one second wind turbines (3) of the wind energy farm (1) are combined into a single combination foundation.
-
公开(公告)号：US20220010773A1
公开(公告)日：2022-01-13
申请号：US17294660
申请日：2019-11-01
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Anders Druedahl THURLOW
IPC: F03D7/02
Abstract: The present invention relates to a method for stabilizing a rotor of a wind turbine during a time period following an abnormal grid event, the method comprising the steps of detecting an occurrence of the abnormal grid event, reducing an allowable rotor thrust from a first thrust limit to a second thrust limit, detecting that the abnormal grid event has ended, and maintaining the second thrust limit a selected time period after the abnormal grid event has ended. The present invention further relates to a wind turbine controller and a computer program product for performing this method.
-
公开(公告)号：US20220006297A1
公开(公告)日：2022-01-06
申请号：US17288852
申请日：2019-09-25
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Claus Thyge PEDERSEN , Tobias Gybel HOVGAARD
Abstract: A controller for controlling the operation of a power plant, the power plant comprising a wind turbine and a solar power generator, the controller comprising: an input arranged to receive an input signal indicative of an operating parameter of the solar power generator; a shadow detection module arranged to monitor the operating parameter and to detect a shadow at least partially shading the solar power generator, the detected shadow being caused by a blade of the wind turbine; a shadow prediction module arranged to predict at least one subsequent blade shadow in dependence on the detected blade shadow; a command module arranged to determine a command signal for controlling the solar power generator based on the blade shadow prediction; and an output arranged to output the command signal to the solar power generator.
-
公开(公告)号：US20220003210A1
公开(公告)日：2022-01-06
申请号：US17288859
申请日：2019-10-22
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Kresten BERTELSEN , Asier BERRA , Carsten Krogh NIELSEN
Abstract: Techniques for determining the presence of ice at a wind farm with a number of wind turbines. The controller receives a current ambient temperature of the wind farm. The controller also receives a measured current wind speed from wind speed sensors of the wind turbines. The controller also receives an estimated current wind speed of each of the wind turbines that is based on measured performance parameters of the associated wind turbine. The controller determines a current wind speed difference between the measured current wind speed and the estimated current wind speed for each of the wind turbines, and determines a current delta distribution based on the current wind speed differences. The controller also determines whether an ice event has occurred, the determination being in dependence on the current ambient temperature and in dependence on the current delta distribution, and then outputs an outcome of the ice event determination.
-
公开(公告)号：US11215163B2
公开(公告)日：2022-01-04
申请号：US16614839
申请日：2018-05-15
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Fabio Caponetti , Jesper Sandberg Thomsen , Poul Brandt Christensen
Abstract: The present invention relates to control of a wind turbine where nacelle vibration is reduced by use of blade pitching or generator torque modulation. The nacelle vibrations are reduced based on a position signal of the nacelle. An actuator signal is determined based on the position signal and applied to the actuator capable of reducing nacelle vibration. The actuator signal is gain adjusted based on a separation between the rotor frequency and tower vibration frequency.
-
Patent Agency Ranking
公开(公告)号：US11199178B2
公开(公告)日：2021-12-14
申请号：US16090645
申请日：2017-04-04
Applicant: Vestas Wind Systems A/S
Inventor： Ivar J. B. K. Jensen , Gunnar K. Storgaard Pedersen
Abstract: A multirotor wind turbine comprising a tower, a suspension arm, a nacelle, and a rotor carried by the nacelle and configured to rotate about a rotor axis to drive a drive train in the nacelle, wherein the tower holds the suspension arm, and the suspension arm holds the nacelle. To facilitate safer and better access to the nacelle or drive train, the suspension arm is configured as a platform to provide support for personnel e.g. during maintenance and repair of the nacelle.
-
167.发明申请公开(公告)号：US20210372371A1
公开(公告)日：2021-12-02
申请号：US17286806
申请日：2019-10-09
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Anders Steen NIELSEN , Søren Hove SØRENSEN , Tobias Gybel HOVGAARD
IPC: F03D7/04
Abstract: The present disclosure relates to controlling an operation of a wind turbine. A first plurality of extreme load measures indicative of extreme loads experienced by at least part of the wind turbine during the first period of time are determined and a load probability characteristic is then determined based on a statistical analysis of the distribution of the first plurality of extreme load measures. A control strategy for controlling the operation of the wind turbine is then modified based at least in part on a comparison of the load probability characteristic and a design load limit and the wind turbine is then subsequently controlled in accordance with the modified control strategy for a second period of time.
-
公开(公告)号：US11187203B2
公开(公告)日：2021-11-30
申请号：US15779281
申请日：2016-11-30
Applicant: Vestas Wind Systems A/S
Inventor： Paul Badger
Abstract: A wind turbine blade includes a plurality of layered sections coupled together end-to-end. Each section includes a side wall that forms a tubular structure and includes at least one bore. When the sections are coupled together, the bores generally align to form a conduit. A strengthening element extends through the conduit and is configured to reinforce the blade under load during use of the wind turbine. A wind turbine includes a tower, a nacelle, and a rotor including a hub and at least one wind turbine blade including a plurality of layered sections extending from the hub. A method of forming a wind turbine blade through an additive manufacturing process is also disclosed.
-
公开(公告)号：US11181097B2
公开(公告)日：2021-11-23
申请号：US16610724
申请日：2018-06-12
Applicant: Vestas Wind Systems A/S
Abstract: A multirotor wind turbine (1) comprising a tower structure (2) and at least one load carrying structure (3), each load carrying structure (3) being arranged to carry two or more energy generating units (5), is disclosed. The wind turbine (1) further comprises a yawing arrangement (6) comprising a first part (9) being fixedly connected to the tower structure (2) and a second part (10) being fixedly connected to at least one of the load carrying structure(s) (3). The first part (9) and the second part (10) are configured to perform rotating movements relative to each other, thereby allowing the load carrying structure (3) to perform yawing movements relative to the tower structure (2). At least one guy wire (7) is connected between an anchoring point (8) at the ground and the first part (9) of the yawing arrangement (6). The invention further provides a yawing arrangement (6) for such a multirotor wind turbine (1).
-
公开(公告)号：US11181096B2
公开(公告)日：2021-11-23
申请号：US16063427
申请日：2016-12-22
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Johnny Nielsen
Abstract: Controlling a wind turbine comprising a wind direction sensor, a yawing system, and a control system for turning the wind turbine rotor relative to the wind. Over one or more time intervals a data set comprising a direction of the wind relative to the wind turbine as measured by the wind direction sensor and a wind power parameter determined as one of a power, a torque, or a blade load of the wind turbine are obtained. The data sets are sorted into a number of bins of different intervals of wind power parameter. or each power bin, a statistical representation of the wind power parameter as a function of the relative wind direction is determined and then used in estimating a wind direction offset corresponding to the relative wind direction where the wind power parameter attains a peak value. The relative wind direction is then adjusted as a function of the set of wind direction offsets to yield more accurate wind direction data which can be used in controlling the turbine.
-
-
-
-
-
-
-
-
-
Search Results
1940
records
(took 0.037 seconds)
