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公开(公告)号：US11952981B2
公开(公告)日：2024-04-09
申请号：US17703727
申请日：2022-03-24
发明人： Nils Noffke , Uli Krause , Tilko Nietsch
IPC分类号： F03D7/02 , F03D9/25 , F03D15/20 , H02P9/04 , H02P101/15
CPC分类号： F03D7/0276 , F03D9/25 , F03D15/20 , H02P9/04 , H02P2101/15
摘要： Provided is a method for controlling a wind power installation, the wind power installation having a generator for the generation of electric current, the generator having an air gap with a variable air gap thickness, the wind power installation being controlled in a part load range by means of a control regulation, the wind power installation being controlled in a manner which is dependent on the air gap thickness, the control regulation being selected or set in a manner which is dependent on the air gap width.
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公开(公告)号：US11649804B2
公开(公告)日：2023-05-16
申请号：US17340387
申请日：2021-06-07
发明人： Samuel Bryan Shartzer , Scott Charles Evans , Arunvenkataraman Subramanian , Dhiraj Arora , Samuel Davoust
CPC分类号： F03D7/045 , F03D7/046 , F03D7/048 , F03D9/257 , F03D17/00 , F05B2260/83 , F05B2270/32 , F05B2270/325 , F05B2270/327 , F05B2270/328 , F05B2270/335 , F05B2270/404 , F05B2270/803
摘要： A system and method are provided for controlling a wind turbine of a wind farm. Accordingly, a controller implements a first model to determine a modeled performance parameter for the first wind turbine. The modeled performance parameter is based, at least in part, on an operation of a designated grouping of wind turbines of the plurality of wind turbines, which is exclusive of the first wind turbine. The controller then determines a performance parameter differential for the first wind turbine at multiple sampling intervals. The performance parameter differential is indicative of a difference between the modeled performance parameter and a monitored performance parameter for the first wind turbine. A second model is implemented to determine a predicted performance parameter of the first wind turbine at each of a plurality of setpoint combinations based, at least in part, on the performance parameter differential the first wind turbine. A setpoint combination is then selected based on the predicted performance parameter and an operating state of the first wind turbine is changed based on the setpoint combination.
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公开(公告)号：US11569767B2
公开(公告)日：2023-01-31
申请号：US17042167
申请日：2018-03-29
发明人： Yukihiko Kiyohiro , Taiyo Onodera , Minoru Maedako
IPC分类号： H02P9/04 , H02P101/25
摘要： In an output control of a hybrid-type engine generator equipped with a load output demand detecting unit, a load output demand increase/decrease determination unit and an output control unit, a configuration is adopted whereby load output demand from (output required by) the load is detected, increase/decrease of the detected load output demand is determined, discharge power from the battery is added to generated power output of the engine generator unit when detected load output demand is determined to be increasing, and output of the engine generator unit is controlled so as to use some generated power output of the engine generator unit as charge power of the battery when detected load output demand is determined to be decreasing.
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公开(公告)号：US20230018979A1
公开(公告)日：2023-01-19
申请号：US17861200
申请日：2022-07-09
摘要： The present disclosure refers to a method for controlling the speed of a reciprocating load motor, wherein the motor speed is a function of two input variables, namely a user defined speed set-point and a load dependent input variable. According to the disclosure, the load dependent input variable is a function of the motor current. The disclosure also refers to a variable frequency drive for controlling the speed of a reciprocating load motor, wherein the drive is programmed to perform the presently described method.
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公开(公告)号：US11506174B2
公开(公告)日：2022-11-22
申请号：US16763224
申请日：2018-07-13
发明人： Mengting Yu , Pengfei Zhang , Guilin Zhou , Minghui Wang
摘要： A power control method and apparatus for a wind power generator. The power control method comprises: predicting, according to historical wind resource data, wind resource data within a predetermined future time period (S10); estimating, according to the remaining design lifetime of a wind power generator, the maximum design lifetime allowed to be consumed within the predetermined future time period (S20); determining, according to the predicted wind resource data and the estimated maximum design lifetime, optimal output powers of the wind power generator in respective wind velocity ranges within the predetermined future time period (S30); and controlling operation of the wind power generator according to the determined optimal output powers of the wind power generator in the respective wind velocity ranges within the predetermined future time period (S40).
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公开(公告)号：US11349323B2
公开(公告)日：2022-05-31
申请号：US15555323
申请日：2016-03-03
IPC分类号： F02N11/08 , H02P9/04 , H02J7/00 , H02J7/14 , B60L1/00 , B60W10/26 , B60L58/10 , A01D34/68 , H01M4/58 , H01M10/0525 , H01M10/46 , A01D101/00
摘要： An engine includes at least one piston, a rotatable crankshaft, a starter motor, a lithium-ion battery, and a charging system. The rotatable crankshaft is coupled to the at least one piston. The starter motor is configured to selectively initiate rotation of the crankshaft. The lithium-ion battery is in electrical communication with the starter motor and has at least one cell. The charging system is powered by motion of at least one component of the engine. The charging system provides energy to the lithium-ion battery to charge the lithium-ion battery. The engine has a starting condition, a running condition, and a stopping condition. The charging system continuously applies a voltage potential to the at least one cell while the engine is in a running condition.
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公开(公告)号：US11309815B2
公开(公告)日：2022-04-19
申请号：US17274017
申请日：2019-07-29
申请人： INDAR ELECTRIC S.L.
IPC分类号： H02P9/04 , F02D29/06 , H02P9/10 , H02P9/00 , H02P103/20
摘要： The invention related to a control method for operating a synchronous machine, the machine comprising an exciter connected to a synchronous generator and a controller (40) for controlling the machine field excitation. The method comprises the steps of predefining a stable operation torque derivative range within which a stable operation of the machine occurs, performing a torque measuring or calculating for the machine, calculating the derivative of said torque, determining whether the calculated torque derivative is within the predefined stable operation torque derivative range for the machine, and, if the torque derivative is not within the predefined stable operation torque derivative range, modifying the machine field excitation to bring the torque derivative within the predefined stable operation torque derivative range.
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公开(公告)号：US11293403B2
公开(公告)日：2022-04-05
申请号：US16378808
申请日：2019-04-09
摘要： A method for preventing catastrophic damage in a drivetrain of a wind turbine includes receiving, via a controller, a speed measurement of the generator of the drivetrain. The method also includes determining an electrical torque of a generator of the drivetrain of the wind turbine. The method further includes estimating, via the controller, a mechanical torque of the rotor as a function of at least one of the electrical torque and the speed measurement of the generator. Further, the method includes comparing, via the controller, the estimated mechanical torque to an implausible torque threshold, wherein torque values above the implausible torque threshold speed values greater that the implausible speed threshold. Moreover, the method includes implementing, via the controller, a control action for the wind turbine when the estimated mechanical torque exceeds the implausible torque threshold.
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公开(公告)号：US20220073199A1
公开(公告)日：2022-03-10
申请号：US17329312
申请日：2021-05-25
发明人： Randy M. Vondrell , Matthew Ryan Polakowski , Kurt David Murrow , Glenn Crabtree , Darek Tomasz Zatorski
IPC分类号： B64C29/00 , B64C27/28 , H02J50/10 , A61L9/12 , H02J7/00 , B64C21/06 , B64D27/14 , B64D27/24 , H02P9/04
摘要： A propulsion system of an aircraft has at least one unducted fan and at least one ducted fan, the at least one unducted fan and the at least one ducted fan being powered by an electric power source and rotatable between a vertical thrust position and a forward thrust position, and a controller configured to distribute electrical power between the at least one unducted fan and the at least one ducted fan. During a first mode when the at least one unducted fan and the at least one ducted fan are in the vertical thrust position, the controller is configured to distribute the electrical power between the plurality of unducted fans and the plurality of ducted fans such that the at least one unducted fan is a primary source of thrust.
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公开(公告)号：US11215126B2
公开(公告)日：2022-01-04
申请号：US17124173
申请日：2020-12-16
申请人： Kohler Co.
IPC分类号： F02D19/06 , H02P9/04 , F02D29/06 , H02P101/25
摘要： A control circuit for a dual fuel generator includes a primary fuel valve to control the supply of a primary fuel, a secondary fuel valve to control the supply of a secondary fuel, a primary fuel pressure switch to detect the primary fuel, a secondary fuel pressure switch to detect the secondary fuel, and a controller. The controller is configured to receive a primary signal for availability of the primary fuel from the primary fuel pressure switch and a secondary signal for availability of the secondary fuel from the secondary and operate the primary fuel valve and the secondary fuel valve in response to the primary signal and the secondary signal. When the secondary fuel valve is open so that the secondary fuel is provided to the dual fuel generator, the control circuit is configured to ground the primary signal by connecting the primary fuel pressure switch to ground.
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