公开(公告)号：US20160208781A1

公开(公告)日：2016-07-21

申请号：US14916618

申请日：2014-09-03

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Martin Ansbjerg KJÆR ,  Peter KOLDKJÆR ,  Mølgaard Hviid KNUDSEN ,  Maryam SOLEIMANZADEH ,  Martin Møller SØRENSEN ,  Ali ZAIB ,  Arvishwa Kumar SINGH ,  Poul Brandt CHRISTENSEN ,  Michael Houlind JENSEN

IPC: F03D7/02 ,  G05F1/66 ,  F03D9/00 ,  F03D7/04 ,  F03D1/06

CPC classification number: F03D7/028 ,  F03D1/06 ,  F03D7/0272 ,  F03D7/042 ,  F03D7/047 ,  F03D9/25 ,  F05B2270/332 ,  G05F1/66 ,  Y02E10/721 ,  Y02E10/723

Abstract: To efficiently nm a wind turbine in varying wind speeds, the wind turbine may be configured to switch between two different electrical configurations that offer different efficiencies depending on wind speed. For example, a star configuration may be preferred during low wind speeds while a delta configuration is preferred for high wind speeds. Before switching, the power output by the turbine's generator may be driven to zero. Doing so, however, removes load from the rotor blades which cause the rotor speed to increase. Instead, the rotor speed may be controlled such that the speed stays at or above the speed of the rotor immediately before the generator power is ramped down. Maintaining rotor speed at or slightly above the current speed while switching between electrical configurations may mitigate the torque change experienced by the turbine and reduce the likelihood of structural failure.

Abstract translation: 为了有效地在不同的风速下对风力涡轮机进行nm风轮机，风力涡轮机可以被配置为在取决于风速的不同效率的两种不同的电气配置之间切换。 例如，在低风速期间，星型配置可能是优选的，而对于高风速，优选配置三角形配置。 在切换之前，涡轮发电机输出的功率可能被驱动到零。 然而，这样做可以消除转子叶片的负载，导致转子速度增加。 相反，可以控制转子速度，使得在发电机功率下降之前，转速保持等于或高于转子的速度。 在转换电气配置之前，将转子速度保持在或稍高于当前速度，可以减轻涡轮机所经历的转矩变化并降低结构故障的可能性。

公开(公告)号：US20230151797A1

公开(公告)日：2023-05-18

申请号：US17920675

申请日：2021-04-22

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Thorkild Møller BERTELSEN ,  Morten Bagger SØGAARD ,  Jesper Lykkegaard NEUBAUER ,  Tiago Telmo PINTO DE OLIVEIRA ,  Peter FYNBO ,  Martin Møller SØRENSEN ,  Carsten Krogh NIELSEN ,  Asier BERRA ,  Anders Hjarnø JØRGENSEN

IPC: F03D7/02

CPC classification number: F03D7/0204 ,  F05B2260/902 ,  F05B2270/602

Abstract: The invention relates to a method for controlling a wind turbine system, more particular for a controlled sliding strategy to lower loads on the yaw system by controlling mechanical brakes and motor brakes in the yaw drive actuators. When the yaw system being in the non-yawing operational state, and the mechanical brake(s) being in an engaged state, and the yaw controller determines or receives a signal indicative of a yaw moment, and if the signal indicative of a yaw moment is above a signal threshold, then the yaw controller sends a braking signal to the yaw drive actuators to enter the motors into the brake state to apply a braking torque.

公开(公告)号：US20150354402A1

公开(公告)日：2015-12-10

申请号：US14763648

申请日：2013-02-14

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Saed EHSANI ,  Erik Carl Lehnskov MIRANDA ,  Ib Svend OLESEN ,  Martin Møller SØRENSEN

IPC: F01D21/00 ,  F01D21/14

CPC classification number: F01D21/003 ,  F01D21/14 ,  F03D17/00 ,  F05B2270/331 ,  F05B2270/332 ,  F05B2270/708

Abstract: To identify abnormal behavior in a turbine blade, a failure detection system generates a “fingerprint” for each blade on a turbine. The fingerprint may be a grouping a dynamic, physical characteristics of the blade such as its mass, strain ratio, damping ratio, and the like. While the turbine is operating, the failure detection system receives updated sensor information that is used to determine the current characteristics of the blade. If the current characteristics deviate from the characteristics in the blade's fingerprint, the failure detection system may compare the characteristics of the blade that deviates from the fingerprint to characteristics of another blade on the turbine. If the current characteristics of the blade are different from the characteristics of the other blade, the failure detection system may change the operational mode of the turbine such as disconnecting the turbine from the utility grid or stopping the rotor.

Abstract translation: 为了识别涡轮叶片中的异常行为，故障检测系统为涡轮机上的每个叶片生成“指纹”。 指纹可以是叶片的动态，物理特性，例如其质量，应变比，阻尼比等。 当涡轮机运行时，故障检测系统接收用于确定叶片的当前特性的更新的传感器信息。 如果当前的特性偏离了刀片指纹的特征，则故障检测系统可以将偏离指纹的刀片的特性与涡轮机上另一个刀片的特性进行比较。 如果叶片的当前特性与其他叶片的特性不同，则故障检测系统可改变涡轮机的操作模式，例如将涡轮机与公用电网断开连接或停止转子。

公开(公告)号：US20230059875A1

公开(公告)日：2023-02-23

申请号：US17794546

申请日：2021-01-19

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Arne BARON ,  Mu WEI ,  Nils PELZER ,  Ulf CLAUSEN ,  Henrik MØLLER ,  Kasper ZINCK ,  Kent TANGE ,  Martin Møller SØRENSEN ,  Rui WU

IPC: H02J3/16 ,  H02J3/14

Abstract: Aspects of the present invention relate to a method of controlling a renewable power plant comprising a plurality of renewable power generators electrically connected by a local network and configured to supply active power to a main network. The method comprises: in response to receiving a signal requesting substantially zero active power supply to the main network: categorizing a generator as power-supplying, and the remaining generators as power-consuming; operating the power-consuming generators to generate no active power and to have their auxiliary systems draw power from the local network; and operating the power-supplying generator to supply active power to the local network such that the plant supplies substantially zero active power to the main network.

公开(公告)号：US20220282708A1

公开(公告)日：2022-09-08

申请号：US17632482

申请日：2020-07-07

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： David STEELE ,  Keld HAMMERUM ,  Rolf Kiilerich ANDERSEN ,  Martin Møller SØRENSEN

IPC: F03D17/00 ,  F03D7/04 ,  F03D7/02

Abstract: A method of providing safety configuration parameters for a wind turbine is provided. The method comprises receiving a safety configuration file at a location of the wind turbine, and comparing a turbine ID associated with the safety configuration file to a turbine ID of the wind turbine stored at the location of the wind turbine. A tamper check is performed on the safety configuration file to determine if data in the safety configuration file has been modified. If the turbine ID associated with the safety configuration file matches the turbine ID of the wind turbine, and if the tamper check determines that the data has not been modified, a safety configuration parameter associated with a safety system of the wind turbine is extracted from the file and stored.