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：US20200293300A1

公开(公告)日：2020-09-17

申请号：US16651414

申请日：2018-09-03

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Asier BERRA ,  Kresten BERTELSEN ,  Carsten Krough NIELSEN

IPC: G06F8/65 ,  F03D7/04 ,  H02J3/00

Abstract: A method of estimating a parameter relating to an upgrade of a wind turbine software, the method comprising toggling the wind turbine alternatingly between two modes, where the upgrade is implemented in one but not the other. Data is collected during toggling and divided into pairs of data parts, one from each mode. The data from the two modes is ordered separately and a quantile-to-quantile comparison is made.

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.