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公开(公告)号：US20190178228A1
公开(公告)日：2019-06-13
申请号：US15834295
申请日：2017-12-07
CPC分类号： F03D7/0296 , B63B35/44 , B63B2035/446 , B63J2099/006 , B64C39/022 , B64F3/00 , F03D5/00 , F03D9/32 , F03D13/25 , F05B2240/921 , F05B2240/923 , F05B2240/93 , F05B2240/95 , F05B2260/96 , F05B2270/404
摘要： System and methods for controlling the oscillation of floating ground stations in aerial wind turbine systems are disclosed. Thrusters on the ground station or on one or more aerial vehicles associated with the ground station apply a compensatory force to the oscillating ground station to reduce and/or substantially eliminate wave-induced oscillations. Submerged thrusters may also rotate the ground station to a preferred alignment direction with the waves. Additionally, control systems use environmental and/or positional sensor data to develop a predictive force profile that maps desired compensatory force magnitude versus time. The control systems use that predictive force profile to direct the thrusters to apply a varying compensatory force over time.
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公开(公告)号：US20190154000A1
公开(公告)日：2019-05-23
申请号：US16091365
申请日：2017-04-03
发明人： Keld HAMMERUM , Tobias Gybel HOVGAARD , Erik SLOTH
CPC分类号： F03D7/0296 , F03D7/045 , F05B2270/333 , F05B2270/404 , Y02E10/723
摘要： The present invention relates to control of wind turbines where a noise measure is taken into account. Control of a wind turbine is described where a control trajectory is calculated based on noise measure, the noise measure being determined from a predicted operational trajectory. In embodiments the predicted operational trajectories are calculated by using a model predictive control (MPC) routine.
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公开(公告)号：US20180331643A1
公开(公告)日：2018-11-15
申请号：US15975888
申请日：2018-05-10
CPC分类号： H02P9/007 , F03D7/0272 , F03D7/043 , F03D9/25 , F05B2260/821 , F05B2270/1033 , F05B2270/32 , F05B2270/404 , H02P9/008 , H02P2101/10 , H02P2101/15 , H02P2101/25
摘要： A method for operating a power generation system is presented. The method includes estimating, by a controller, at least one of a required load and input power of the doubly-fed induction generator for a pre-determined future time duration. The method includes comparing, by the controller, the estimated at least one of the required load and the input power with a corresponding threshold value. Moreover, the method includes transitioning, by the controller, operation of the power generation system from a partial power conversion mode to a full power conversion mode by controlling switching of one or more of a plurality of switches if the estimated at least one of the required load and the input power is less than the corresponding threshold value, wherein the plurality of switches includes a first set of switches coupled to stator winding of the doubly-fed induction generator.
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公开(公告)号：US09970447B2
公开(公告)日：2018-05-15
申请号：US14934711
申请日：2015-11-06
发明人： Kohei Oda , Kenji Umayahara
IPC分类号： F04D27/02 , B60L1/00 , B60L11/18 , H01M8/04694 , H01M8/04746
CPC分类号： F04D27/0261 , B60L1/003 , B60L11/1883 , F05B2260/821 , F05B2270/101 , F05B2270/1032 , F05B2270/335 , F05B2270/404 , F05D2260/821 , F05D2270/03 , F05D2270/304 , F05D2270/335 , F05D2270/44 , H01M8/04694 , H01M8/04753 , H01M2250/20 , Y02T90/32 , Y02T90/34
摘要： A fuel cell system includes an air compressor that supplies oxidant gas to a fuel cell installed in a fuel cell vehicle, a measured rotational speed acquirer that acquires a measured value of rotational speed of the air compressor, and a controller that calculates a rotational speed command value of the air compressor based on required generated power of the fuel cell, calculates a torque command value of the air compressor based on the calculated rotational speed command value and current rotational speed of the air compressor, and controls rotational speed of the air compressor based on the calculated torque command value. The controller estimates the current rotational speed of the air compressor baaed on the measured value of the rotational speed acquired by the measured rotational speed acquirer and a history of the calculated torque command value, and calculates the torque command value by using the estimated rotational speed.
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公开(公告)号：US20180128242A1
公开(公告)日：2018-05-10
申请号：US15561120
申请日：2015-03-27
发明人： John M. Obrecht , Karsten Schibsbye
CPC分类号： F03D7/046 , F03D7/0224 , F03D7/024 , F03D7/043 , F05B2260/74 , F05B2260/821 , F05B2260/8211 , F05B2270/1095 , F05B2270/326 , F05B2270/327 , F05B2270/328 , F05B2270/331 , F05B2270/404 , F05B2270/808 , Y02E10/723
摘要： A method of controlling a wind turbine having a nacelle, a rotor, a rotating hub, a first rotor blade and at least a second rotor blade, both rotor blades being mounted to the hub. The method includes measuring the strain in the first rotor blade by a strain measurement device attached to the first rotor blade; and choosing the operational parameters of the wind turbine based on the measured strain such that fatigue damage of the second rotor blade is reduced. A wind turbine is controlled by such a method.
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公开(公告)号：US09915243B2
公开(公告)日：2018-03-13
申请号：US14625108
申请日：2015-02-18
CPC分类号： F03D7/048 , F03D7/0284 , F03D9/10 , F03D9/11 , F03D9/257 , F05B2260/82 , F05B2270/335 , F05B2270/404 , G05B15/02 , G05B2219/2619 , H02J3/32 , H02J3/386 , Y02E10/723 , Y02E10/763 , Y02E10/766 , Y02E70/30
摘要： A system for automatic generation control in a wind farm is provided. The system includes a wind farm controller for controlling the plurality of energy storage elements. The wind farm controller receives an automatic generation control set point from an independent system operator, generates a farm-level storage power set point for the wind farm based on the automatic generation control set point, generates individual storage power set points for the plurality of energy storage elements based on states of charge of the respective energy storage elements, and controls the plurality of energy storage elements based on the individual storage power set points for dispatching storage power to perform automatic generation control.
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公开(公告)号：US09859828B2
公开(公告)日：2018-01-02
申请号：US14765468
申请日：2013-02-07
发明人： Germán Claudio Tarnowski , Philip Carne Kjær , Rasmus Lærke , Florin Iov , Remus Teodorescu , Andrzej Adamczyk
CPC分类号： H02P9/14 , F03D7/0284 , F03D7/045 , F03D9/11 , F05B2270/337 , F05B2270/404 , H02J3/24 , H02J3/28 , H02J3/38 , H02J3/386 , Y02E10/723 , Y02E10/763 , Y02E10/766 , Y02E70/30 , Y02P90/50
摘要： The present invention relates to method for operating a power plant, with at least one wind turbine generator arranged for supplying power to an electrical grid, at least one energy storage device arranged for supplying power to the electrical grid, and a power plant controller, the method comprises, measuring repetitively measurement sets of at least one electrical parameter from the electrical grid, and calculating, in respect the measurement sets of the at least one electrical parameter, a change in active and/or a required change in reactive power at a point of common coupling, and calculating and dispatching of a first control reference signal to the at least one wind turbine generator and a second control reference signal to the at least one energy storage device, for providing ancillary service functionalities to the electrical grid. The invention also relates to a power plant with at least one wind turbine generator for supplying power to an electrical grid, at least one energy storage device for supplying power to the electrical grid, and a power plant controller for providing ancillary service functionalities to the electrical grid.
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公开(公告)号：US09841006B2
公开(公告)日：2017-12-12
申请号：US13980271
申请日：2011-12-15
申请人： Justin Creaby , Robert Bowyer , Christopher Spruce
发明人： Justin Creaby , Robert Bowyer , Christopher Spruce
CPC分类号： F03D7/0264 , F03D7/0208 , F03D7/0268 , F03D17/00 , F05B2260/82 , F05B2270/309 , F05B2270/321 , F05B2270/322 , F05B2270/332 , F05B2270/404 , F05B2270/702 , F05B2270/8042 , Y02E10/723
摘要： A wind turbine has a Lidar device to sense wind conditions upstream of the wind turbine. Signals from the wind turbine are processed to detect an extreme change in wind direction. The detection is performed by differentiating the rate of change of wind direction and filtering for a period of time. On detection of extreme change the system controller takes the necessary evasive action which may include shutting down the turbine, commencing an immediate yawing action, and de-rating the turbine until the yawing action is complete.
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公开(公告)号：US20170138348A1
公开(公告)日：2017-05-18
申请号：US15319829
申请日：2015-06-08
申请人： MITA-TRKNIK A/S
发明人： Jesper BONDING , Søren DALSGAARD
CPC分类号： F03D7/0224 , F03D7/024 , F03D7/043 , F05B2260/74 , F05B2260/821 , F05B2270/1095 , F05B2270/326 , F05B2270/327 , F05B2270/328 , F05B2270/331 , F05B2270/335 , F05B2270/404 , Y02E10/723
摘要： The present invention relates to a system for dynamic pitch control primarily for wind turbine blades, which system calculates the pitch position of the wind turbine blades independently, which control system performs feedback regulation. The object of the pending patent application is to perform effective pitch regulation and hereby to reduce thrust on the tower and the rotor. This can be achieved if the system performs feed forward regulation of the pitch of the blades, based on the load of the previous blade in substantially the same position. Hereby it can be achieved that the actual load on the previous blade has passed the same position in relation to the wind blowing around the wind turbine. Hereby it can be achieved that measured parameters are used after a short delay to perform a very precise and highly efficient adjustment of the next wind turbine blade passing the same position. The feed forward regulation can be combined with already existing control parameters for pitch control of wind turbine blades.
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公开(公告)号：US20170089325A1
公开(公告)日：2017-03-30
申请号：US15375904
申请日：2016-12-12
申请人： ABB Schweiz AG
发明人： Adrian Timbus , Carsten Franke , Marija Zima
CPC分类号： F03D7/048 , F03D7/0292 , F03D7/043 , F03D7/045 , F03D9/257 , F03D80/50 , F05B2270/20 , F05B2270/332 , F05B2270/404 , G05B13/026 , G05B19/048 , G05B23/0283 , G05B2219/24001 , G05B2219/2619 , G05F1/66 , Y02E10/723
摘要： The present application is concerned with a flexible way of operating a wind farm with a plurality of degrading wind turbine components. According to the invention, maintenance scheduling and power production in the wind farm are handled concurrently in a single optimization step. Instead of a serial approach first scheduling maintenance activities and subsequently adapting the power production and/or wind turbine operation the two aspects are optimized together. The wind farm operation takes maintenance aspects into account by adapting life index or health status based on modeled mechanical and electrical stress. Accordingly, the wind farm owner may decide when and how much energy to produce accepting which level of stress to the turbine equipment. The proposed optimization of wind farm operation includes all aspects of transmission network operator settings, the topology of wind farms and the underlying collector grid, the short and long term wind conditions forecasts, the conditions of the turbines, the estimated remaining operational time under different usage patterns and times, as well as aspects of the electricity market.
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