公开(公告)号：US11885309B2

公开(公告)日：2024-01-30

申请号：US17294789

申请日：2019-11-06

Applicant: Vestas Wind Systems A/S

Inventor： Erik Eduard Kostandyan ,  Poul T. Tietze ,  Sandra Ann Hoffecker ,  Carsten Krogh Nielsen

IPC: F03D80/60

CPC classification number: F03D80/60 ,  F05B2260/20

Abstract: A wind turbine cooling system comprising a cooling circuit arranged to convey a cooling fluid to and from a heat source, a cooling device arranged to cool the cooling fluid, a 5 pump arranged to circulate the cooling fluid in the cooling circuit, and a cooling fluid tank arranged in fluid connection with the cooling circuit and having a first fluid port adjacent a top of the tank and a second fluid port adjacent a bottom of the tank, wherein the second fluid port is arranged to communicate with the cooling circuit, wherein the pump has an outlet arranged in fluid connection with the cooling circuit and in fluid 10 connection with the tank, and wherein a fluid path between the pump outlet and the tank includes a flow restriction device.

公开(公告)号：US20220128042A1

公开(公告)日：2022-04-28

申请号：US17294789

申请日：2019-11-06

Applicant: Vestas Wind Systems A/S

Inventor： Erik Eduard Kostandyan ,  Poul T. Tietze ,  Sandra Ann Hoffecker ,  Carsten Krogh Nielsen

IPC: F03D80/60

Abstract: A wind turbine cooling system comprising a cooling circuit arranged to convey a cooling fluid to and from a heat source, a cooling device arranged to cool the cooling fluid, a 5 pump arranged to circulate the cooling fluid in the cooling circuit, and a cooling fluid tank arranged in fluid connection with the cooling circuit and having a first fluid port adjacent a top of the tank and a second fluid port adjacent a bottom of the tank, wherein the second fluid port is arranged to communicate with the cooling circuit, wherein the pump has an outlet arranged in fluid connection with the cooling circuit and in fluid 10 connection with the tank, and wherein a fluid path between the pump outlet and the tank includes a flow restriction device.

公开(公告)号：US12123396B2

公开(公告)日：2024-10-22

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 ,  F03D7/0244 ,  F03D7/0248 ,  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：US10883475B2

公开(公告)日：2021-01-05

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 ,  G06N20/00 ,  F03D17/00 ,  G06F30/20 ,  G01R21/133 ,  G06F111/10

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：US12297805B2

公开(公告)日：2025-05-13

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 ,  F03D7/04 ,  F03D80/50

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：US20150292486A1

公开(公告)日：2015-10-15

申请号：US14366617

申请日：2012-12-19

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Yu Zhou ,  Pey Yen Siew ,  Anil Sabannavar ,  Carsten Krogh Nielsen

IPC: F03D11/00

CPC classification number: F03D80/40 ,  F05B2260/80 ,  F05B2270/323 ,  F05B2270/335 ,  Y02E10/72

Abstract: A wind turbine blade ice accretion detector 65 is configured to receive an indication of power generated by a wind turbine 67 and an indication of a plurality of environmental conditions of the wind turbine 69. It is also configured to receive an indication of an error relating to the operation of the wind turbine 71. These indications are processed by the detector 65 to provide an indication of ice accretion of a wind turbine blade. In addition to or as an alternative, the wind turbine blade ice accretion detector 65 is configured to receive an indication of power generated by a wind turbine 67 in a plurality of different time periods and an indication of a plurality of environmental conditions of the wind turbine 69 in the plurality of different time periods; and to process these to provide an indication of ice accretion of a wind turbine blade.

Abstract translation: 风力涡轮机叶片积冰检测器65被配置为接收由风力涡轮机67产生的功率的指示和风力涡轮机69的多个环境条件的指示。其还被配置为接收与风力涡轮机67相关的错误的指示 风力涡轮机71的操作。这些指示由检测器65处理以提供风力涡轮机叶片的积冰的指示。 除了或作为替代方案，风力涡轮机叶片积冰检测器65被配置为接收在多个不同时间段中由风力涡轮机67产生的功率的指示，以及风力涡轮机的多个环境条件的指示 69在多个不同的时间段中; 并且处理它们以提供风力涡轮机叶片的积冰的指示。

公开(公告)号：US12012937B2

公开(公告)日：2024-06-18

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 ,  F03D17/00 ,  F03D80/40

CPC classification number: F03D7/048 ,  F03D17/00 ,  F03D80/40 ,  F05B2270/32 ,  F05B2270/325

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：US10989173B2

公开(公告)日：2021-04-27

申请号：US15772793

申请日：2016-11-18

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Dan Beltoft ,  Sven Jesper Knudsen ,  Carsten Krogh Nielsen

IPC: F03D17/00 ,  F03D7/04

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.

公开(公告)号：US10794366B2

公开(公告)日：2020-10-06

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 ,  F03D7/04 ,  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.