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公开(公告)号：US12210051B2
公开(公告)日：2025-01-28
申请号：US18024099
申请日：2021-08-19
Applicant: Siemens Gamesa Renewable Energy A/S
Inventor： Leif Nielsen
Abstract: A fault gas detection system for a liquid filled high voltage transformer, the transformer including a main tank and an expansion tank the tanks fluidic connected by an exchange conduit such that gas and/or a transformer liquid is able to exchange between the tanks, the gas detection system including: a chamber with a top cover, a predefined horizontal level-plane in the chamber defining a maximum liquid level of a transformer liquid in the chamber during use, a fluid-channel including a fluid-egress at a level equal to or higher than the top cover and a fluid-ingress lower than the level of the level-plane, a level sensor designed to measuring and/or indicating a liquid level. A respective transformer and a respective wind turbine system is also provided.
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公开(公告)号：US11898540B2
公开(公告)日：2024-02-13
申请号：US17565283
申请日：2021-12-29
Applicant: Wobben Properties GmbH
Inventor： Johannes Brombach
CPC classification number: F03D7/048 , H02J2300/28
Abstract: Provided is a method for feeding electrical power into an electrical supply network using a converter-controlled infeed apparatus. The apparatus feeds into a local network section of the electrical supply network at a network connection point. The network has further infeed apparatuses and consumers for consuming electrical power. The local section has a ratio of power able to be fed in using converters to a total power able to be fed in by all infeed apparatuses of at least 50%. A controller controls the infeed of the electrical power depending on a network state of the network. The controller has control behavior that depends on a network characteristic of the local section. The network characteristic is dependent on at least one property of the local section and at least one property of a further network section of the network or a determination that no further network section is present.
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公开(公告)号：US11835029B2
公开(公告)日：2023-12-05
申请号：US16971941
申请日：2019-09-16
Inventor： Boyu Yang , Hongyu Gao , Xinle Li
CPC classification number: F03D17/00 , F03D7/00 , G06T7/0002 , G06T7/70 , H04N23/54
Abstract: A tower clearance real-time monitoring system (100) and a method therefor. The tower clearance monitoring system (100) comprises an image capture device (101), a blade position processing device (102) and a core algorithm processing device (103). The image capture device (101) is used to capture an image of a wind turbine in an operating state, and the image comprises a blade portion and a tower portion; The blade position processing device (102) is used to determine whether the captured image represents valid data so as to send valid data to the core algorithm processing device (103). The core algorithm processing device (103) is used to use valid data to calculate a tower clearance value for a blade, and to send a calculation result to a wind turbine main control system (104) of a wind turbine.
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公开(公告)号：US11828268B2
公开(公告)日：2023-11-28
申请号：US17127702
申请日：2020-12-18
Applicant: Wobben Properties GmbH
Inventor： Hussam Daboul , Kai Enskonatus , Muhanad Mahmoud
IPC: F03D7/00 , F03D7/02 , H02P101/15
CPC classification number: F03D7/028 , F05B2270/32 , H02P2101/15
Abstract: The invention relates to a method for determining the energy production to be expected for a wind power installation for a forecast time period, which may be an expected annual energy production. The installation has installation components. In the method, at least one of the installation components is selected as a thermally relevant component and chronologically distributed wind speed values are specified for the forecast time period. An expected power output level of the installation is determined for one of the wind speed values. In the power output level determining step, a component temperature which is assigned to this wind speed value is taken into account by the at least one thermally relevant component. The expected power output level of the installation, which is determined for the wind speed value, is used to determine the energy production of the installation which is to be expected for the forecast time period.
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公开(公告)号：US20230120987A1
公开(公告)日：2023-04-20
申请号：US17915172
申请日：2021-03-03
Applicant: Siemens Gamesa Renewable Energy A/S
Inventor： Bert Gollnick , Vinay Kumar Manjunatha
Abstract: A method and system of controlling operation of wind turbines is provided, the method including (a) receiving a parameter value which is based on at least one sensor signal, (b) determining a difference between the received parameter value and a predetermined value, (c) comparing the difference with a threshold value, and (d) if the difference is below the threshold value, operating the wind turbines in a first mode of operation, (e) if the difference is not below the threshold value, incrementing an alert counter, comparing the alert counter with an alert threshold value, operating the wind turbines in a second mode of operation if the alert counter is smaller than the alert threshold value or if the alert counter exceeds the second threshold value and the difference is decreasing, triggering an alarm if the alert counter exceeds the alert threshold value and the difference is not decreasing.
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Patent Agency Ranking
6.发明授权公开(公告)号：US11585320B2
公开(公告)日：2023-02-21
申请号：US16642345
申请日：2018-08-27
Applicant: Wobben Properties GmbH
Inventor： Roberto Rosso , Jair Cassoli , Sönke Engelken , Amgad Eldeib
IPC: F03D7/00 , F03D7/02 , H02P101/15 , H02P103/20 , H02P21/22
Abstract: A method for controlling a multiphase separately excited synchronous generator in a wind turbine is provided. The generator has a stator and an armature having an excitation input, connected to an excitation controller, for inputting an excitation current or an excitation voltage. The stator has a stator output, connected to a rectifier, for delivering stator currents. The rectifier is controllable to control the stator currents by detecting a speed of the armature or rotor, determining a setpoint power to be delivered by the generator or the turbine based on the speed, determining an excitation current or voltage based on the detected speed and determined setpoint power, inputting the excitation current or voltage by excitation controller at the excitation input, determining the stator currents as setpoint stator currents based on the speed and the setpoint power, and controlling the rectifier to set the stator currents to the setpoint stator currents.
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公开(公告)号：US11572122B2
公开(公告)日：2023-02-07
申请号：US16328059
申请日：2017-08-24
Applicant: INSTITUT POLYTECHNIQUE DE GRENOBLE
Inventor： John-Jairo Martinez-Molina
IPC: H02P6/08 , H02P21/18 , B62J45/20 , B62M6/50 , B62M6/55 , H02P23/20 , F03D7/00 , G06F17/10 , H02P29/00 , F03D7/04 , G06F17/11
Abstract: Some embodiments are directed to a method for estimating a periodic or substantially periodic force present in a mechanical or electromechanical system, the method comprising: estimating, by a processing device, one or more harmonic frequencies of an acceleration signal representing an acceleration in the system, the substantially periodic force contributing to said acceleration; and estimating, by the processing device, the force on the basis of a dynamic model of the system, the dynamic model being defined by said one or more estimated harmonic frequencies.
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公开(公告)号：US11536251B2
公开(公告)日：2022-12-27
申请号：US17416968
申请日：2019-12-11
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Mu Wei , Karthik Krishnan Jamuna , Jacob Quan Kidmose , Søren Sønderbo Andersen , Søren Kappelgaard
Abstract: The invention relates to a method for determining power set points of a power plant comprising a plurality of power generating units with at least one wind turbine generator. The determination of the power set points are based on a prioritization of the power generating units, where the power generating units are prioritized with respect to individual power levels or fatigue levels obtained for the power generating units. The prioritization is adjusted so that the adjusted prioritization depends both on the power and fatigue levels.
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公开(公告)号：US11428208B2
公开(公告)日：2022-08-30
申请号：US16995432
申请日：2020-08-17
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Chris Spruce , Chakradhar Byreddy , Kelvin Hales , Judith Turner
Abstract: Generating a control schedule for a wind turbine, the control schedule indicating how the turbine maximum power level varies over time. Generating the control schedule includes determining a value indicative of the current remaining fatigue lifetime of the turbine, or one or more turbine components, based on measured wind turbine site and/or operating data; applying an optimisation function that varies an initial control schedule to determine an optimised control schedule by varying the trade off between energy capture and fatigue life consumed by the turbine or the one or more turbine components until an optimised control schedule is determined.
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公开(公告)号：US11339762B2
公开(公告)日：2022-05-24
申请号：US16349507
申请日：2018-05-09
Inventor： Xianyou Wu , Shuowen Xiao
Abstract: A method and an apparatus for controlling wind turbine power. The method includes: determining a compensation value for target active power based on a power difference between a net grid-connected power and the target active power; determining a setpoint value of active power based on the target active power and the compensation value; and performing a current-varying control and a pitch control based on the setpoint value of active power.
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