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公开(公告)号：US11879501B2
公开(公告)日：2024-01-23
申请号：US16981454
申请日：2019-03-26
CPC分类号： F16C43/02 , F03D13/00 , F05B2230/604 , F05B2260/30 , F16C2360/31
摘要： A connection system for joining two wind turbine components together includes one or more bearing surfaces and one or more support surfaces extending away from the one or more bearing surfaces on a first wind turbine component, and one or more bearing surfaces and one or more support surfaces extending away from the one or more bearing surfaces on a second wind turbine component. One or more bores are formed in the one or more support surfaces of the first and second wind turbine components. One or more pins are configured to be engaged with respective one or more bores of the first and second wind turbine components to thereby join the two components together. A method for joining two wind turbine components together is also disclosed.
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公开(公告)号：US20240011465A1
公开(公告)日：2024-01-11
申请号：US18260448
申请日：2021-12-07
发明人： Mranal GUPTA
IPC分类号： F03D7/02
CPC分类号： F03D7/0296 , F05B2260/962 , F05B2270/329
摘要： A method of masking tonal noise from a wind turbine. The wind turbine has a noise generator and a rotor-nacelle-assembly (RNA). The RNA comprises a nacelle and a rotor configured to rotate about a rotor axis with a horizontal projection. The method comprises: feeding a drive signal into the noise generator so that the noise generator emits directional masking noise, wherein the directional masking noise at least partially masks tonal noise from the wind turbine and points in a masking direction with a horizontal projection. The horizontal projection of the masking direction points away from the horizontal projection of the rotor axis.
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公开(公告)号：US11867157B2
公开(公告)日：2024-01-09
申请号：US17293501
申请日：2019-11-13
发明人： Michael Staghøj
CPC分类号： F03D80/60 , F03D7/028 , F03D7/0272 , F03D7/0276 , F05B2260/20 , F05B2260/202 , F05B2260/203 , F05B2260/205 , F05B2270/303 , F05B2270/3032 , F05B2270/325
摘要： A method of cooling a wind turbine. A cooling system is operated with a first setpoint temperature to cool the wind turbine over a first period. The method comprises measuring a temperature of the wind turbine over the first period to obtain temperature measurements; allocating each of the temperature measurements to a temperature range, wherein one or more of the temperature ranges are critical temperature ranges; and for each critical temperature range, comparing a parameter indicative of a number of the temperature measurements allocated to the critical temperature range with a threshold; selecting a second setpoint temperature on the basis of the comparison(s); and operating the cooling system with the second setpoint temperature over a second period. An equivalent method is also disclosed in which a power setting of the wind turbine is changed on the basis of the comparison(s).
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公开(公告)号：US11863112B2
公开(公告)日：2024-01-02
申请号：US17628174
申请日：2020-07-08
摘要： The invention relates to controlling a power generating unit. Aspects of the invention include determining a virtual impedance value (Zvir), determining a virtual grid power (Pvsm) based on the virtual resistance value (Rvir) and the grid current (Igrid), determining a virtual synchronous machine rotational speed (ωVSM) and/or a synchronous machine angle (θVSM) of a virtual synchronous generator, and determining a voltage reference (Vabc) for controlling a line side converter to generate the desired reactive power (Qgrid) based on the virtual synchronous machine rotational speed or angle (ωVSM, θVSM), a virtual voltage (ΔVαβ, ΔVdq) and the voltage magnitude reference (Vqref).
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公开(公告)号：US20230407849A1
公开(公告)日：2023-12-21
申请号：US18326978
申请日：2023-05-31
发明人： Pradeep BOSUKONDA , Johnny NIELSEN , Tobias ROSSEL
CPC分类号： F03D80/40 , F03D7/0264 , F03D17/00 , F03D7/048 , F05B2270/20 , F05B2260/80
摘要： A method for operating a cluster of a plurality of wind turbines is disclosed. For each of the wind turbines, one or more parameter values of a parameter being indicative for a condition occurring at the wind turbine are derived, based the measurements obtained by the wind turbine. In the case that a derived parameter value for a specific wind turbine exceeds a trigger value, measures for mitigating an effect of the condition at the specific wind turbine are initiated. The derived parameter values for the wind turbines of the cluster of wind turbines are compared to an expected distribution of the parameter values. In the case that a distribution of the derived parameter values differs from the expected distribution of the parameter values, the trigger value is adjusted, and the adjusted trigger value is subsequently applied when comparing the derived parameter values to the trigger value.
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56.发明公开公开(公告)号：US20230407841A1
公开(公告)日：2023-12-21
申请号：US18250962
申请日：2021-10-25
发明人： Dan WU , Rubin PANNI , Kouroush NAYEBI
CPC分类号： F03D7/028 , F03D9/25 , H02P9/102 , F05B2220/706 , H02P2101/15
摘要： Aspects of the present invention relate to methods for controlling active power output of a wind turbine generator in response to a frequency event on a power network to which the wind turbine generator is connected, wherein the active power output of the wind turbine generator is limited to be below an upper active power limit and/or above a lower active power limit. The methods comprise determining and dispatching active power references to a controller of the wind turbine generator for controlling the wind turbine generator. The methods operate to ensure that the value of the active power reference immediately after the frequency event is within the allowable active power range, thereby avoiding any mismatch between the reference and the output that may cause a delay in returning to normal operation.
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公开(公告)号：US11815067B2
公开(公告)日：2023-11-14
申请号：US17843522
申请日：2022-06-17
发明人： Fabio Spagnolo , Julio Xavier Vianna Neto , Karthik Vasudevan , Naga Srinivas Kamarajugadda , Fabio Caponetti
IPC分类号： F03D7/02
CPC分类号： F03D7/026 , F05B2270/32 , F05B2270/327
摘要： The invention relates to a method for controlling a wind turbine during start up, from a non-producing operation mode to a power producing operation mode when limit cycles occur during start-up. Limit cycles are detected when a number of cut-in transitions or a number of cut-out transitions are detected. A cut-in transition is when the wind turbine fails starting up despite having the wind speed or rotor speed normally required to enter a power producing operation mode. A cut-out transition is occurring when the wind turbine is falling out of power producing operation mode after having entered the power producing operation mode.
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公开(公告)号：US11788513B2
公开(公告)日：2023-10-17
申请号：US17634053
申请日：2020-08-05
CPC分类号： F03D80/60 , F03D80/80 , F05B2230/60 , F05B2260/02 , F05B2260/20
摘要： A wind turbine (10) includes a tower (12), a nacelle (14) coupled to the tower (12) and housing one or more heat generating components (18, 20), a rotor (16) having a least one wind turbine blade (24), and a cooler (38) mounted to the nacelle (14) and configured to cool the one or more heat generating components (18, 20) in the nacelle (14) by circulating a working fluid. The cooler (38) includes a support frame (46) coupled to the nacelle (14) and a heat exchanger (48) coupled to the support frame (46) and configured to cool the working fluid. The heat exchanger (48) includes at least two cooling panels (58) in non-planar relation with each other. The at least two cooling panels (50) may also be pivotably coupled to each other. A method of assembling a cooler (38) is also disclosed.
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公开(公告)号：US11788512B2
公开(公告)日：2023-10-17
申请号：US16330419
申请日：2017-09-14
发明人： Angelo Sardellano
CPC分类号： F03D80/55 , B05B13/0436 , E04G3/32 , F16M13/022 , B65D61/00 , E04G3/243 , E04G2003/286 , F03D80/50 , F05B2230/61 , Y02E10/72 , Y10S180/901
摘要： A plurality of sliding rails and a frame structure comprising a plurality of frame elements configured to be arranged at least partly circumferentially around a tower structure. Each frame element is slidably connected to at least one of the sliding rails, and the frame elements and the sliding rails are interconnected to form a scissor structure. An upwardly directed lifting force applied by a hoisting mechanism at connecting points at or near positions where the frame elements are connected to the sliding rails, in combination with gravity working on the frame structure, causes the frame elements to slide along the sliding rails, thereby causing the scissor structure to contract or expand to adjust a diameter of the frame structure to an outer diameter of the tower structure having the apparatus mounted thereon.
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公开(公告)号：US20230323854A1
公开(公告)日：2023-10-12
申请号：US18043055
申请日：2021-08-12
CPC分类号： F03D1/0675 , F03D80/30 , F05D2230/60
摘要： A split wind turbine blade includes a connection joint for coupling a first and a second blade portion together. At least one of the blade portions includes electrically conductive material, and a hole formed in an end surface of the blade portion. A portion of the electrically conductive material is revealed on a surface of the hole. The connection joint includes a metal insert embedded in the hole such that the metal insert 10 forms an electrical path with the electrically conductive material revealed on the surface of the hole.
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