公开(公告)号：WO2021104589A1

公开(公告)日：2021-06-03

申请号：PCT/DK2020/050325

申请日：2020-11-24

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： NICHOLS, James Alexander ,  NIELSEN, Anders Steen ,  GRUNNET, Jacob Deleuran

IPC: F03D7/04

Abstract: A method of controlling a wind turbine is provided, comprising identifying an out-of-vertical load acting in a first direction on the wind turbine. A direction of a wind load acting on the wind turbine is determined. If there is a degree of alignment between the direction of the wind load and the first direction, the wind turbine is controlled to reduce the wind load.

公开(公告)号：WO2021104586A1

公开(公告)日：2021-06-03

申请号：PCT/DK2020/050304

申请日：2020-11-06

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： SMITH, Jonathan

IPC: F03D1/06 ,  F03D80/00

Abstract: An insert (105) for a wind turbine blade root end connection, the insert (105) comprising a bushing (40) in a fibrous composite body (108), wherein the body (108) comprises: a plurality of elongate fibrous battens (150) arranged around the bushing (40), and a transition layer (102) located between the bushing (40) and the elongate fibrous battens (150) wherein one or more of the elongate fibrous battens (150) comprises a translucent portion positioned to allow inspection of the transition layer (102). A method of making an element (104, 105) for a wind turbine blade root end connection, the method comprising placing into a mould (250): a bushing (40) and a plurality of elongate fibrous battens (150) around the bushing (40), wherein one or more of the elongate fibrous battens (150) comprises a translucent portion; the method further comprising forming the element (104, 105) in said mould (250) using a resin infusion process including curing, wherein the formed element comprises a transition layer (102) located between the bushing (40) and the elongate fibrous battens (150); extracting said element (104, 105) from said mould (250); and inspecting said element (104, 105) for blemishes (190) by passing light through the translucent portion of the one or more fibrous battens (150).

公开(公告)号：WO2021078342A1

公开(公告)日：2021-04-29

申请号：PCT/DK2020/050268

申请日：2020-10-02

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： ANDERSEN, Mogens E. ,  FERNANDEZ GARCIA, Borja

IPC: F16C35/02 ,  F16C35/077 ,  F03D80/50 ,  F03D80/70 ,  B23P6/00

Abstract: The present invention provides a method of repairing a bearing bore defined by an inner surface of a bearing housing, for instance a bearing housing that is part of a wind turbine. The method includes applying a liquid resin to at least part of the inner surface of the bearing housing. The method includes mounting a bore insert in the bearing bore, where the bore insert includes an arcuate portion having an edge positioned along a line of required radius of the bearing bore, so that the liquid resin fills a gap between the inner surface of the bearing housing and the edge of the arcuate portion of the bore insert. The method includes removing the bore insert from the bearing bore after the liquid resin has solidified to repair the bearing bore to the required radius. Advantageously, the invention provides a relatively simple and inexpensive method for repairing a bearing bore that has suffered wear, that may be performed on-site and which obviates the need for potentially expensive component replacement of the bearing housing.

公开(公告)号：WO2021069040A1

公开(公告)日：2021-04-15

申请号：PCT/DK2020/050271

申请日：2020-10-07

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： BRILLIANT, Nathan A. ,  HANSEN, Anders Niels

IPC: F03D80/30 ,  F03D80/70

Abstract: The present invention provides a wind turbine comprising a lightning protection system for providing an electrical conduction path suitable for conducting lightning from the rotor to electrical ground. The lightning protection system comprises a shroud which is electrically coupled to a wind turbine bearing housing and a wind turbine hub and/or the front end of the main shaft. The shroud forms part of the electrical conduction path so to electrically couple a wind turbine rotor to the bearing housing via a short circuit path that bypasses the bearing arrangement.

公开(公告)号：WO2021063460A1

公开(公告)日：2021-04-08

申请号：PCT/DK2020/050249

申请日：2020-09-14

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： KIDMOSE, Jacob Quan ,  WEI, Mu ,  PATANKAR, Manas

IPC: F03D7/02 ,  F03D7/04

Abstract: A method for controlling a power output of a power generating unit (18, 21) is disclosed. An accumulated power output of the power generating unit (18, 21) during a predefined time interval is forecasted. An actual power output of the power generating unit (18, 21) is measured during the predefined time interval, and an actual accumulated power output is estimated for the predefined time interval on the basis of the measured actual power output of the power generating unit (18, 21). A difference between the forecasted accumulated power output and the estimated actual accumulated power output is derived. The power output of the power generating unit (18, 21) is boosted, in the case that the estimated actual accumulated power output is below the forecasted accumulated power output, and the difference between the forecasted accumulated power output and the estimated actual accumulated power output is larger than a predefined threshold value.

公开(公告)号：WO2021052693A1

公开(公告)日：2021-03-25

申请号：PCT/EP2020/072957

申请日：2020-08-17

Applicant: ZF FRIEDRICHSHAFEN AG ,  ZF WIND POWER ANTWERPEN N.V. ,  VESTAS WIND SYSTEMS A/S

Inventor： STRASSER, Dirk ,  WEIST, Dietmar ,  STOYANOV, Deyan ,  SPERLICH, Ralf

IPC: F16H57/029 ,  F03D15/00 ,  F03D80/80 ,  F16H57/04 ,  H01B17/58

Abstract: Die Erfindung betrifft eine Anordnung mit einem Getriebe, einem Durchführungsrohr (103) und einem Fixiermittel (101); wobei das Durchführungsrohr (103) mittels des Fixiermittels (101) in dem Getriebe fixiert ist. Das Fixiermittel (101) ist gegenüber dem Durchführungsrohr (103) elektrisch isolierend ausgeführt.

公开(公告)号：WO2021023354A1

公开(公告)日：2021-02-11

申请号：PCT/DK2020/050225

申请日：2020-08-04

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： BADGER, Paul ,  SPANDLEY, Luke

IPC: F03D80/40 ,  F03D1/06

Abstract: A first aspect of the invention provides a wind turbine blade comprising an electro-5 thermal heating element, the electro-thermal heating element comprising a sheet of electrically resistive material which is folded so as to provide a plurality of heat zones, each heat zone comprising one or more layers of the sheet, wherein at least two of the heat zones have a different number of layers of the sheet.

公开(公告)号：WO2021023349A1

公开(公告)日：2021-02-11

申请号：PCT/DK2020/050206

申请日：2020-07-07

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： PINTO FRUTUOSO, Ines ,  NIELSEN, Johnny ,  VAN SCHELVE, Jens

IPC: F03D17/00

Abstract: A method for determining a relative position of wind sensors on a wind turbine comprising: obtaining wind data from each of at least two wind sensors installed on a wind turbine at a location where airflow is affected by a rotor of the wind turbine, the obtaining occurring while the rotor is rotating, identifying oscillations in the wind data from each of the wind sensors, determining a phase or amplitude difference between the oscillations, and determining a relative position of the wind sensors based on the phase or amplitude difference.

公开(公告)号：WO2021004591A1

公开(公告)日：2021-01-14

申请号：PCT/DK2020/050182

申请日：2020-06-23

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： BJØRN, Hans Kristian ,  NYVAD, Jesper ,  VEJBY, Anders

IPC: F03D7/02 ,  F03D80/60

Abstract: The invention relates to a method for utilizing a cooling system of a wind turbine. The method includes obtaining a temperature (T) which correlates with a nacelle temperature or a nacelle component temperature, obtaining a wind speed (v), determining a temperature threshold (Tth) of a power de-rating function 5 dependent on the wind speed, where the power de-rating function provides power references (Pref_i) as a function of the temperature and where the power references for temperatures above the temperature threshold are reduced compared to power references for temperatures below the temperature threshold, and determining a power reference (Pref) for the wind turbine based on the power 10 de-rating function and the temperature (T).

公开(公告)号：WO2021001002A1

公开(公告)日：2021-01-07

申请号：PCT/DK2020/050179

申请日：2020-06-19

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： NIELSEN, Per Hagen

IPC: G01R27/16 ,  H02J3/38

Abstract: A method for estimating components of a grid impedance, Z, of a power grid (1) being coupled to a power generating unit at a point of interconnection (4) is disclosed. A voltage, V meas , across the point of interconnection (4); an active current, I P , and/or an active power, P, delivered by the power generating unit to the power grid (1); and a reactive current, I Q , and/or a reactive power, Q, delivered by the power generating unit to the power grid (1) are determined. A parameter estimation vector is estimated using a recursive adaptive filter algorithm, and on the basis of V meas , I P , P, I Q and/or Q. A model representation of the power grid (1) is created on the basis of the parameter estimation vector, and a system DC gain vector for the power grid (1) is calculated, using the model representation. Finally, the grid impedance, Z, and/or a resistance, R, of the grid impedance, Z, and/or a reactance, X, of the grid impedance, Z, is derived from the system DC gain vector.