专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US10364798B2 Control system for wind turbines for reducing disturbances in an electrical grid 有权
公开(公告)号：US10364798B2
公开(公告)日：2019-07-30
申请号：US15518992
申请日：2015-10-08
申请人： VESTAS WIND SYSTEMS A/S
发明人： Martin Ansbjerg Kjær , Fabio Caponetti , Ian Couchman , Jesper Sandberg Thomsen , Thomas Krüger , Jorge Martinez Garcia
IPC分类号： F03D7/02 , F03D7/04 , H02K7/18 , H02P9/04
摘要： The invention relates to a method for wind turbine generators for reducing electrical disturbances in the form of power variations which are caused by damping controllers arranged the compensate structural oscillations by inducing shaft torque variations. The shaft torque variations are generated by imposing corresponding variations in a generator set-point, e.g. a power or torque set-point. Variations in the generator set-point cause undesired variations in the power injected to the grid by one or more wind turbine generators. According to an embodiment of the invention the electrical disturbances may be reduced by limiting a damping controller's control action. The amount of limitation or restriction of the damping controller may be determined on basis on electrical disturbance information determined from power measured e.g. at a location on the grid.

2. 发明授权

US09709033B2 Method for controlling a wind turbine during shutdown 有权
公开(公告)号：US09709033B2
公开(公告)日：2017-07-18
申请号：US14395849
申请日：2013-04-22
申请人： Vestas Wind Systems A/S
发明人： Keld Hammerum , Thomas Krüger
IPC分类号： F03D7/02
CPC分类号： F03D7/0224 , F03D7/0264 , Y02E10/723
摘要： A method for controlling an individually pitched wind turbine during shutdown is disclosed, the wind turbine comprising at least three wind turbine blades (1a, 1b, 1c). In response to a shutdown command for stopping operation of the wind turbine, a blade parameter of each of the wind turbine blades (1a, 1b, 1c), e.g. pitch angle, bending moment or blade acceleration, is determined. The blade parameters of the wind turbine blades (1a, 1b, 1c) are compared, and a shutdown strategy for the wind turbine is selected from a group of two or more predefined shutdown strategies, based on the comparing step. Finally, the wind turbine blades (1a, 1b, 1c) are moved towards a feathered position in accordance with the selected shutdown strategy.

3. 发明授权

US10590912B2 Counteracting tower oscillations of an idling wind turbine 有权
公开(公告)号：US10590912B2
公开(公告)日：2020-03-17
申请号：US15103126
申请日：2014-12-03
申请人： VESTAS WIND SYSTEMS A/S
发明人： Fabio Caponetti , Martin Brødsgaard , Thomas Krüger
IPC分类号： F03D7/02 , F03D9/25
摘要： The invention presents a method for operating a horizontal axis wind turbine, the wind turbine comprising a tower and a rotor with at least one rotor blade, the rotor being connected to the tower, and being adapted to drive a generator connected to a utility grid, wherein a pitch angle of each rotor blade is adjustable, the method comprising detecting, when the wind turbine is in an idling power producing situation in relation to the utility grid, a tower oscillation, and controlling, when the wind turbine is in the idling power producing situation, the pitch angle of the at least one rotor blade so as to produce aerodynamic forces counteracting the detected tower oscillation.

4. 发明申请

US20150132129A1 METHOD OF OPERATING A WIND TURBINE AS WELL AS A SYSTEM SUITABLE THEREFORE 有权
标题翻译：风力涡轮机的运行方式可以作为适合的系统
公开(公告)号：US20150132129A1
公开(公告)日：2015-05-14
申请号：US14406409
申请日：2013-06-07
申请人： VESTAS WIND SYSTEMS A/S
发明人： Martin Atzler , Per Brath , Thomas Krüger , Ali Zaib
IPC分类号： F03D7/04 , F03D7/02
CPC分类号： F03D7/044 , F03D7/0224 , F03D7/024 , F03D7/0296 , F03D7/043 , F05B2260/966 , F05B2270/331 , Y02E10/723
摘要： A method of operating a wind turbine is provided. The wind turbine comprises a turbine rotor with at least two blades, each blade having a variable pitch angle. The method comprises determining mechanical loads on the blades, determining an asymmetric load moment experienced by the turbine rotor based on the mechanical loads on the blades, determining high order harmonics from the asymmetric load moment, and determining an individual pitch control signal for each of the blades for varying the pitch angle of each blade to compensate for the asymmetric load moment. The individual pitch control signal for each blade is determined at least based on the high order harmonics.
摘要翻译：提供了一种操作风力涡轮机的方法。风力涡轮机包括具有至少两个叶片的涡轮转子，每个叶片具有可变的俯仰角。该方法包括确定叶片上的机械载荷，基于叶片上的机械负载确定涡轮转子经历的不对称载荷力矩，从非对称载荷力矩确定高次谐波，以及确定每个用于改变每个叶片的俯仰角以补偿不对称载荷力矩的叶片。至少基于高阶谐波确定每个叶片的各个俯仰控制信号。

5. 发明申请

US20150086360A1 METHOD FOR CONTROLLING A WIND TURBINE DURING SHUTDOWN 有权
标题翻译：风力发电机组控制方法
公开(公告)号：US20150086360A1
公开(公告)日：2015-03-26
申请号：US14395849
申请日：2013-04-22
申请人： Vestas Wind Systems A/S
发明人： Keld Hammerum , Thomas Krüger
IPC分类号： F03D7/02
CPC分类号： F03D7/0224 , F03D7/0264 , Y02E10/723
摘要： A method for controlling an individually pitched wind turbine during shutdown is disclosed, the wind turbine comprising at least three wind turbine blades (1a, 1b, 1c). In response to a shutdown command for stopping operation of the wind turbine, a blade parameter of each of the wind turbine blades (1a, 1b, 1c), e.g. pitch angle, bending moment or blade acceleration, is determined. The blade parameters of the wind turbine blades (1a, 1b, 1c) are compared, and a shutdown strategy for the wind turbine is selected from a group of two or more predefined shutdown strategies, based on the comparing step. Finally, the wind turbine blades (1a, 1b, 1c) are moved towards a feathered position in accordance with the selected shutdown strategy.
摘要翻译：公开了一种用于在关闭期间控制单独倾斜的风力涡轮机的方法，所述风力涡轮机包括至少三个风力涡轮机叶片（1a，1b，1c）。响应于用于停止风力涡轮机的操作的关闭命令，每个风力涡轮机叶片（1a，1b，1c）的叶片参数，例如，桨距角，弯矩或叶片加速度。比较风力涡轮机叶片（1a，1b，1c）的叶片参数，并且基于比较步骤从一组两个或更多个预定义的关闭策略中选择风力涡轮机的关闭策略。最后，风力涡轮机叶片（1a，1b，1c）根据所选择的关闭策略朝着顺桨位置移动。

6. 发明授权

US10907612B2 Control of a wind turbine using real-time gain calculation 有权
公开(公告)号：US10907612B2
公开(公告)日：2021-02-02
申请号：US16088419
申请日：2017-03-30
申请人： VESTAS WIND SYSTEMS A/S
发明人： Jacob Deleuran Grunnet , Thomas Krüger , Ali Zaib , Jesper Sandberg Thomsen
IPC分类号： F03D9/00 , H02P9/04 , F03D7/04 , F03D7/02
摘要： A wind turbine control system comprising at least one control module configured to output a control signal for a control mechanism of a wind turbine, and a gain calculator for calculating a gain parameter associated with the control module, wherein the gain parameter is calculated based on a computerized real-time blade model using a determined wind turbine operating point as an input. The blade model may be a blade element momentum model. In another aspect, the invention may be expressed as a method of controlling a control mechanism of a wind turbine.

7. 发明授权

US10619623B2 Selective wind turbine damping using active damping system 有权
公开(公告)号：US10619623B2
公开(公告)日：2020-04-14
申请号：US15102955
申请日：2014-12-05
申请人： VESTAS WIND SYSTEMS A/S
发明人： Fabio Caponetti , Thomas Krüger , Ian Couchman , Ilias Konstantinos Ariston , Martin BrØdsgaard , Jacob Deleuran Grunnet , Jesper Sandberg Thomsen , Peter Mortensen Sigfred
IPC分类号： F03D7/04 , F03D7/02 , F03D9/25
CPC分类号： F03D7/0296 , F03D7/024 , F03D7/0224 , F03D7/0272 , F03D7/043 , F03D9/25 , F05B2220/706 , F05B2240/2211 , F05B2260/821 , F05B2260/964 , F05B2270/334 , Y02E10/723 , Y02E10/725
摘要： The present invention refers to a method for operating a wind turbine, the wind turbine particularly comprising a tower and a rotor with rotor blades. The pitch angles of the rotor blades are adjusted to generate a force on the rotor and the tower. The force is adjusted to counteract and damp an oscillation. The adjustment is enabled by an activation decision unit, if the activation decision unit decides that certain parameters characterising the oscillation or loads of the tower indicate a requirement and/or if the activation decision unit determines that the generated force is sufficient to counteract an oscillation of the tower. In various embodiments the parameters characterising the oscillation or loads of the tower comprise current oscillations and their amplitude, an estimate of loads incurred in the turbine structure, an estimate whether damping in the near future might become necessary, an indication whether a different oscillation damping algorithm than individual blade pitch control is currently performing, and an indication whether a wind speed is above a certain portion of a rated wind speed.

8. 发明授权

US09835137B2 Compensation for asymmetric load moment experienced by wind turbine rotor 有权
公开(公告)号：US09835137B2
公开(公告)日：2017-12-05
申请号：US14406409
申请日：2013-06-07
申请人： VESTAS WIND SYSTEMS A/S
发明人： Martin Atzler , Per Brath , Thomas Krüger , Ali Zaib
IPC分类号： F03D7/04 , F03D7/02
CPC分类号： F03D7/044 , F03D7/0224 , F03D7/024 , F03D7/0296 , F03D7/043 , F05B2260/966 , F05B2270/331 , Y02E10/723
摘要： A method of operating a wind turbine is provided. The wind turbine comprises a turbine rotor with at least two blades, each blade having a variable pitch angle. The method comprises determining mechanical loads on the blades, determining an asymmetric load moment experienced by the turbine rotor based on the mechanical loads on the blades, determining high order harmonics from the asymmetric load moment, and determining an individual pitch control signal for each of the blades for varying the pitch angle of each blade to compensate for the asymmetric load moment. The individual pitch control signal for each blade is determined at least based on the high order harmonics.

9. 发明授权

US10975845B2 Control of a wind turbine using real-time blade model 有权
公开(公告)号：US10975845B2
公开(公告)日：2021-04-13
申请号：US16088739
申请日：2017-03-30
申请人： VESTAS WIND SYSTEMS A/S
发明人： Jacob Deleuran Grunnet , Thomas Krüger
IPC分类号： F03D7/04 , F03D7/02
摘要： A wind turbine control system comprising a controller of a control mechanism of a wind turbine, wherein the controller implements a computerized real-time blade model to calculate operational parameters of the controller, and wherein the computerized real-time blade model receives as inputs a determined wind turbine operating point and a rotor-plane wind speed value that is estimated in real-time. In another aspect, the embodiments of the invention provide a method of controlling a control mechanism of a wind turbine. Advantageously, the invention provides a more flexible and responsive control system that is able to adapt to changing wind conditions even if those wind conditions are beyond what is usually predicted.

10. 发明授权

US10662924B2 Rotor blade control for high winds 有权
公开(公告)号：US10662924B2
公开(公告)日：2020-05-26
申请号：US15037902
申请日：2014-11-19
申请人： VESTAS WIND SYSTEMS A/S
发明人： Fabio Caponetti , Ian Couchman , Thomas Krüger , Ali Zaib , Carsten Nørlund Thomsen
IPC分类号： F03D9/00 , H02P9/04 , F03D7/02 , F03D9/25 , H02J11/00 , H02K7/18
摘要： The invention relates to a control apparatus and method for controlling the rotor blades of a wind turbine, and in particular to controlling the rotor blades during an extreme wind event. An extended mode of operation of the wind turbine rotor beyond the cut-out wind speed is provided. In the extended mode of operation, the pitch of the wind turbine blades is actively controlled so that the rotor and the generator idle at a designated rotational speed. The rotational speed may be relatively high, say 15 to 20% of the nominal speed, compared with minimal speeds experienced by purely feathered wind turbine blades, and may be further controlled as a function of the incident wind speed. Output power control in the extended mode may be zero but is preferably a low, but non-zero value. The output power so produced may then be used as an auxiliary power source for controlling the wind turbine in situations where the utility grid fails.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式