公开(公告)号：US10662807B2

公开(公告)日：2020-05-26

申请号：US15399289

申请日：2017-01-05

申请人： LM WP PATENT HOLDING A/S

发明人： Casper Skovby

IPC分类号： F01D25/00 ,  G01M5/00

摘要： Method and blade monitoring system for monitoring bending moment of a wind turbine blade. The method comprises obtaining a first sensor set signal indicative of a first bending moment at a first sensor position different from the tip end along the longitudinal axis of the wind turbine blade, and estimating a bending moment at a first estimation position along the longitudinal axis based on the first sensor set signal, wherein the first sensor position is different from the first estimation position along the longitudinal axis. The blade monitoring system comprises a processing unit and an interface connected to the processing unit, the processing unit being configured for performing the method.

公开(公告)号：US10330082B2

公开(公告)日：2019-06-25

申请号：US14421683

申请日：2013-08-14

申请人： LM WP PATENT HOLDING A/S

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

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

摘要： 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：US10316817B2

公开(公告)日：2019-06-11

申请号：US15307174

申请日：2015-04-28

申请人： LM WP PATENT HOLDING A/S

发明人： Michael Klitgaard ,  Christian Frank Andersen ,  Morten Ravn ,  Casper Skovby ,  Simon Berg Bojesen ,  Peter Baek

IPC分类号： F03D1/06 ,  B29D99/00 ,  B29C70/34 ,  B29C70/44 ,  B29C70/54 ,  B29L31/08

摘要： A manufacturing method is described for a wind turbine blade, where layers of fiber material are laid up in a mold to form a portion of the blade structure. The fiber layers are infused with a resin which is subsequently cured to form the hardened blade structure. Some of the layers of fiber material are arranged so that a portion of the layers are kept resin-free during the infusion and curing steps, so that the fiber layer extends freely out from the external surface of the blade, preferably at the blade trailing edge, to provide a flexible blade trailing edge to reduce blade operational noise.

公开(公告)号：US20150240787A1

公开(公告)日：2015-08-27

申请号：US14421683

申请日：2013-08-14

申请人： LM WP PATENT HOLDING A/S

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

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

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

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20140334928A1

公开(公告)日：2014-11-13

申请号：US14365375

申请日：2012-12-05

申请人： LM WP PATENT HOLDING A/S

发明人： Peter Baek ,  Christian Frank Andersen ,  Mark Olaf Slot ,  Casper Skovby ,  Simon Berg Bojesen ,  Morten Ravn ,  Michael Klitgaard

IPC分类号： F03D7/02 ,  F03D7/04

CPC分类号： F03D7/0232 ,  F03D7/0296 ,  F03D7/043 ,  F03D7/045 ,  F05B2240/31 ,  Y02E10/721 ,  Y02E10/723 ,  Y02P70/523

摘要： A control method for a wind turbine, in particular for a wind turbine blade is described. The control method makes use of the blade mode shapes, or natural vibration shapes, of the blade to detect the excitement level of the blade natural vibrations, and controls active lift devices on the blade in an effort to reduce the excitement levels, to reduce loading in the blade and the overall wind turbine structure. There is also provided a method of designing a wind turbine blade for use in such a method.

摘要翻译： 描述了风力涡轮机的控制方法，特别是风力涡轮机叶片的控制方法。 控制方法利用叶片的叶片模式形状或天然振动形状来检测叶片自然振动的兴奋程度，并且控制叶片上的主动提升装置，以减少兴奋水平，减少载荷 在叶片和整体风力涡轮机结构中。 还提供了一种设计用于这种方法的风力涡轮机叶片的方法。