公开(公告)号：US20180335019A1

公开(公告)日：2018-11-22

申请号：US15776115

申请日：2016-11-09

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Sven Jesper KNUDSEN ,  Carsten Krogh NIELSEN

IPC: F03D7/04 ,  F03D17/00 ,  G06N99/00 ,  G06F17/50 ,  G01R21/133

CPC classification number: F03D7/046 ,  F03D7/048 ,  F03D17/00 ,  F05B2260/821 ,  F05B2260/83 ,  F05B2260/845 ,  F05B2270/32 ,  F05B2270/335 ,  F05B2270/70 ,  G01R21/1331 ,  G06F17/5009 ,  G06F2217/16 ,  G06N99/005 ,  Y02E10/723

Abstract: Monitoring and assessing power performance changes of one or more wind turbines of a wind farm. For each wind turbine to be monitored, a group of reference wind turbines is defined. During a training period a transfer function is generated for each monitored wind turbine. The transfer function establishes a relationship between locally measured wind speeds at each of the reference wind turbines and the power performance data for the monitored wind turbine obtained during the training period. During one or more subsequent test periods, measured power performance data for the monitored wind turbines is compared to predicted power performance data. The predicted power performance data is obtained by means of the locally measured wind speeds at the corresponding reference wind turbines during the test period(s) and the previously generated transfer function for the monitored wind turbine. This allows even small and/or gradual power performance degradation to be detected.

公开(公告)号：US20230014873A1

公开(公告)日：2023-01-19

申请号：US17786430

申请日：2020-12-11

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Keld THOMSEN ,  Claus T.S. ANDREASEN ,  Carsten Krogh NIELSEN ,  Sanath Kumar SATHISH

IPC: F03D17/00 ,  F03D7/02

Abstract: The invention relates to a method for monitoring yawing fault events of a yaw system of a wind turbine. The yaw system comprises one or more actuators for driving the yaw system and a holding system to resist yaw rotation. The yaw system is arranged to provide yaw rotation in response to a yaw control signal. According to the method, the monitored yaw angle is compared with the yaw control signal, and based on the comparison, a correlation between a monitored change in the yaw angle and the yaw control signal is determined. A yawing fault event is determined dependent on the determined correlation.

公开(公告)号：US20160258424A1

公开(公告)日：2016-09-08

申请号：US15029554

申请日：2014-10-13

Applicant: Vestas Wind Systems A/S

Inventor： Carsten Krogh NIELSEN

IPC: F03D80/80 ,  F03D80/40 ,  F03D1/06 ,  H01R39/46 ,  H01R39/64

Abstract: An electrical connector (30) is described for providing power between a nacelle (14) and a hub (16) of a wind turbine (10). The electrical connector includes a first electrical connector part (32) for connection to one of the nacelle or the hub, and a second electrical connector (34) part for connection to the other of the nacelle or the hub. The electrical connector further includes an actuator (46) for moving the first or second electrical connector parts in a first direction between an extended position in which the first and second connector parts are in contact and form an electrical connection between the nacelle and the hub, and a retracted position in which the first and second electrical connector parts are spaced apart and do not form an electrical connection. The first and/or second electrical connector parts include one or more magnets (84) arranged to secure the first and second parts together when the respective parts are in contact.

Abstract translation: 描述了一种用于在风力涡轮机（10）的机舱（14）和轮毂（16）之间提供动力的电连接器（30）。 电连接器包括用于连接到机舱或轮毂之一的第一电连接器部分（32）和用于连接到机舱或轮毂中的另一个的第二电连接器（34）部分。 电连接器还包括致动器（46），用于在第一和第二连接器部分接触的延伸位置之间沿第一方向移动第一或第二电连接器部件并在机舱和轮毂之间形成电连接， 以及缩回位置，其中第一和第二电连接器部分间隔开并且不形成电连接。 第一和/或第二电连接器部件包括布置成当相应部件接触时将第一和第二部件固定在一起的一个或多个磁体（84）。

公开(公告)号：US20220003210A1

公开(公告)日：2022-01-06

申请号：US17288859

申请日：2019-10-22

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Kresten BERTELSEN ,  Asier BERRA ,  Carsten Krogh NIELSEN

IPC: F03D7/04 ,  F03D80/40

Abstract: Techniques for determining the presence of ice at a wind farm with a number of wind turbines. The controller receives a current ambient temperature of the wind farm. The controller also receives a measured current wind speed from wind speed sensors of the wind turbines. The controller also receives an estimated current wind speed of each of the wind turbines that is based on measured performance parameters of the associated wind turbine. The controller determines a current wind speed difference between the measured current wind speed and the estimated current wind speed for each of the wind turbines, and determines a current delta distribution based on the current wind speed differences. The controller also determines whether an ice event has occurred, the determination being in dependence on the current ambient temperature and in dependence on the current delta distribution, and then outputs an outcome of the ice event determination.

公开(公告)号：US20190063406A1

公开(公告)日：2019-02-28

申请号：US15771842

申请日：2016-11-10

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Carsten Krogh NIELSEN ,  Sven Jesper KNUDSEN

IPC: F03D17/00 ,  F03D9/25

Abstract: A method for monitoring and assessing power performance changes of one or more wind turbines of a wind farm, the method comprising the steps of: for each wind turbine to be monitored, defining a group of reference wind turbines, the group of reference wind turbines comprising two or more wind turbines, operating the wind turbines of the wind farm, while obtaining locally measured wind speeds at each of the wind turbines, during a training period, obtaining the power performance data in relation to the locally measured wind speed for each of the monitored wind turbines, during the training period, for each of the monitored wind turbines, generating a wind speed transfer function establishing a relationship between the locally measured wind speeds at each of the reference wind turbines and the locally measured wind speed at the monitored wind turbine, operating the wind turbines of the wind farm, while obtaining locally measured wind speeds, at least at the reference wind turbines during one or more test periods following the training period, estimate the wind speed for the monitored wind turbines during the test periods based on the measured wind speeds at the reference wind turbines, and the transfer function generated during the training period for the monitored wind turbine, obtain, power performance data for each of the monitored wind turbines in relation to the estimated wind speed, asses power performance by comparing the power performance data obtained during the test periods with the power performance data obtained during the training period.

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：US20180320667A1

公开(公告)日：2018-11-08

申请号：US15772793

申请日：2016-11-10

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Dan BELTOFT ,  Sven Jesper KNUDSEN ,  Carsten Krogh NIELSEN

IPC: F03D17/00 ,  F03D7/04

CPC classification number: F03D17/00 ,  F03D7/046 ,  F03D7/048 ,  F05B2230/80 ,  F05B2260/821 ,  F05B2260/83 ,  F05B2270/32 ,  F05B2270/335 ,  F05B2270/504 ,  Y02E10/723

Abstract: Assessing performance impact of a power upgrade of one or more wind turbines of a wind farm that includes a group of target wind turbines and a group of reference wind turbines. For each of the target wind turbines, a transfer function is generated, establishing a relationship between the locally measured wind speed at the target wind turbine and locally measured wind speeds at each of the reference wind turbines. A power upgrade is performed on each of the target wind turbines, and subsequently power performance data is obtained for the reference wind turbines and the target wind turbines, within one or more wind speed intervals. For the target wind turbines, the wind speed intervals are based on estimated wind speeds, based on locally measured wind speeds at the reference wind turbines and the transfer functions.