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：US20220224145A1

公开(公告)日：2022-07-14

申请号：US17611836

申请日：2020-05-15

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Morten Bagger SØGAARD ,  Niels Erik DANIELSEN ,  Alun JONES ,  Carsten Lindgaard JENSEN

IPC: H02J9/06 ,  H02J1/10 ,  F03D9/11 ,  F03D7/02

Abstract: The present invention relates to a wind turbine comprising an internal power supply grid for distributing power to a number of power consuming units of the wind turbine, the wind turbine further comprising a power backup system connected to the internal power supply grid for supplying power to said internal power supply grid during a grid fault, wherein the power backup system comprises a power storage module providing a total backup voltage that falls within a nominal voltage range of the internal power supply grid of the wind turbine.

公开(公告)号：US20170350373A1

公开(公告)日：2017-12-07

申请号：US15536302

申请日：2015-12-18

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Anders Niels HANSEN ,  Morten Bagger SØGAARD ,  Claus Grøn LYNGBY ,  Gert LADING

IPC: F03D80/30 ,  F03D1/06

CPC classification number: F03D80/30 ,  F03D1/0675 ,  F03D1/0691 ,  F05B2240/14 ,  F05B2240/221 ,  F05B2260/502 ,  Y02E10/721

Abstract: A lightning current transfer unit for a wind turbine, the wind turbine comprising a first part and a second part being rotatable relative to each other, wherein the lightning current transfer unit is arranged to provide electrical contact between the first and second parts, the lightning current transfer unit comprising: a first current transfer portion comprising a first slider and configured to be electrically coupled to a first electrically conducting slideway of the first part of the wind turbine, the first slider being rotatable relative to the first slideway; a second current transfer portion configured to be electrically coupled to an electrically conducting portion of the second part of the wind turbine; a first main spring biasing the first slider towards the first slideway; wherein the first slider comprises: a primary contact biased towards the first slideway by the first main spring; a secondary contact arranged to move relative to the primary contact; and a secondary spring arranged between the first main spring and the secondary contact such that the secondary spring biases the primary contact away from the first slideway and biases the secondary contact towards the first slideway.