公开(公告)号：US10989172B2

公开(公告)日：2021-04-27

申请号：US15509636

申请日：2015-09-10

Applicant: LM WP PATENT HOLDING A/S

Inventor： Peter Bæk ,  Michael Klitgaard ,  Claus Byskov

IPC: F03D17/00 ,  F03D7/04 ,  F03D1/06 ,  F03D7/02 ,  G01C3/06 ,  G01S11/02

Abstract: A method for the determination of the deflection of a wind turbine blade is provided. A distance between at least one root location towards a root end of the wind turbine blade and at least one tip location towards a tip end of the wind turbine blade is measured. A blade deflection profile is then calculated based on the measured distance between the root and tip locations and a known modal profile of the wind turbine blade.

公开(公告)号：US10774815B2

公开(公告)日：2020-09-15

申请号：US16078785

申请日：2017-02-21

Applicant: LM WP PATENT HOLDING A/S

Inventor： Shuai Zhang ,  Claus Byskov ,  Gert Frølund Pedersen

IPC: F03D17/00 ,  F03D7/02 ,  F03D1/06 ,  F03D13/35

Abstract: A wind turbine blade comprising a system for monitoring the deflection of a wind turbine blade is described. The system comprises a wireless range-measurement system, having at least one wireless communication device located towards the root end of the blade and at least one wireless communication device located towards the tip end of the blade, the communication devices comprising antennas polarized substantially perpendicular to the suction side of the blade and substantially parallel to the leading edge of the wind turbine blade.

公开(公告)号：US10330082B2

公开(公告)日：2019-06-25

申请号：US14421683

申请日：2013-08-14

Applicant: LM WP PATENT HOLDING A/S

Inventor： Claus Byskov ,  Peter Baek ,  Michael Klitgaard ,  Casper Skovby ,  Lars Fuglsang

IPC: F03D7/06 ,  G01S13/08 ,  G01S11/02 ,  F03D7/04 ,  F03D1/06 ,  F03D7/02 ,  F03D17/00

Abstract: A system for monitoring the deflection of a wind turbine blade is described. The system comprises a wireless range-measurement system, having at least one wireless communication device located towards the root end of the blade and at least one wireless communication device located towards the tip end of the blade. The root end device is provided on a bracket projecting from the external surface of the blade, to provide a communication path between the root end and tip end devices which is less susceptible to interference from multipath effects, etc. There is further provided a method to derive tilt and yaw moments from measured deflections. A control method for such a system is also described, wherein the signal gain of the communication path may be varied based at least in part upon the deflection characteristics of the wind turbine blade.

公开(公告)号：US09909570B2

公开(公告)日：2018-03-06

申请号：US14651692

申请日：2013-12-11

Applicant: LM WP PATENT HOLDING A/S

Inventor： Michael Klitgaard ,  Peter Baek ,  Claus Byskov

IPC: F01D25/00 ,  F04D29/00 ,  F03D17/00 ,  F03D7/02

CPC classification number: F03D17/00 ,  F03D7/022 ,  F05B2270/33 ,  F05B2270/802 ,  F05B2270/8041 ,  Y02E10/726

Abstract: A system and method for the verification and calibration of wind turbine sensor systems is provided. The system comprises an optical capture device provided on a wind turbine which is arranged to record the position of at least one light source provided at the wind turbine during operation of the wind turbine. The motion of the light source relative to the optical capture device can provide an indication of relative motion of a portion of the wind turbine during operation, which can then be used as an input to a calibration and/or a verification system for a sensor system of the wind turbine.

公开(公告)号：US20150240787A1

公开(公告)日：2015-08-27

申请号：US14421683

申请日：2013-08-14

Applicant: LM WP PATENT HOLDING A/S

Inventor： Claus Byskov ,  Peter Baek ,  Michael Klitgaard ,  Casper Skovby ,  Lars Fuglsang

IPC: F03D11/00 ,  F03D7/02 ,  F03D7/04 ,  F03D1/06

CPC classification number: F03D7/042 ,  F03D1/0675 ,  F03D7/0224 ,  F03D17/00 ,  F05B2270/17 ,  F05B2270/331 ,  F05B2270/821 ,  Y02E10/721 ,  Y10T29/49002

Abstract: A system for monitoring the deflection of a wind turbine blade is described. The system comprises a wireless range-measurement system, having at least one wireless communication device located towards the root end of the blade and at least one wireless communication device located towards the tip end of the blade. The root end device is provided on a bracket projecting from the external surface of the blade, to provide a communication path between the root end and tip end devices which is less susceptible to interference from multipath effects, etc. There is further provided a method to derive tilt and yaw moments from measured deflections. A control method for such a system is also described, wherein the signal gain of the communication path may be varied based at least in part upon the deflection characteristics of the wind turbine blade.

Abstract translation: 描述了用于监测风力涡轮机叶片的偏转的系统。 该系统包括无线范围测量系统，其具有朝向叶片的根端的至少一个无线通信设备和朝向叶片的尖端定位的至少一个无线通信设备。 根端装置设置在从叶片的外表面突出的支架上，以提供不受多路径效应等干扰的根端和末端装置之间的连通路径。还提供了一种方法， 从测量的偏转中导出倾斜和偏转力矩。 还描述了一种用于这种系统的控制方法，其中通信路径的信号增益可以至少部分地基于风力涡轮机叶片的偏转特性来改变。