公开(公告)号：EP2761263A1

公开(公告)日：2014-08-06

申请号：EP12762530.9

申请日：2012-09-19

Applicant: Vestas Wind Systems A/S

Inventor： HJORT, Thomas ,  GLAVIND, Lars

IPC: G01L1/24 ,  G01M5/00 ,  G01M11/08 ,  G01D5/353 ,  G01K11/32

CPC classification number: G01D5/3537 ,  G01D5/35303 ,  G01D5/35316 ,  G01D5/35341 ,  G01D5/35387 ,  G01K11/3206 ,  G01L1/246 ,  G01M5/0016 ,  G01M5/0091 ,  G01M11/083

Abstract: The present invention relates to an optical fiber for a fiber optic sensor, comprising a first optical grating adapted to operate over a first range of wavelengths; and at least one set of further gratings adapted to operate over a second range of wavelengths, each grating being adapted to operate over a portion of the second range; wherein, each grating within said set has an operating range that partially overlaps with at least one other such grating operating range. The invention also extends to a sensor system, and method, using such an optical fiber.

公开(公告)号：EP2376772A2

公开(公告)日：2011-10-19

申请号：EP09771492.7

申请日：2009-12-11

Applicant: Vestas Wind Systems A/S

Inventor： HJORT, Thomas

IPC: F03D1/00 ,  F03D11/04

CPC classification number: F03D1/00 ,  F03D13/20 ,  F03D80/80 ,  F05B2240/14 ,  Y02E10/726 ,  Y02E10/728

Abstract: According to the present invention is provided a wind turbine nacelle comprising wind turbine components. The nacelle also comprises a load carrying structure including a base member establishing a connection between the wind turbine rotor and tower, at least one tie member, and at least one strut member carrying one or more of said wind turbine components. The tie and strut members are connected at one end to each other and at the opposite ends to different positions on the base member for establishing one or more closed structures.

公开(公告)号：EP2635808B1

公开(公告)日：2016-01-13

申请号：EP11779337.2

申请日：2011-11-02

Applicant: Vestas Wind Systems A/S

Inventor： HJORT, Thomas

IPC: F03D11/00 ,  F03D9/00 ,  F03D7/00

CPC classification number: F03D7/00 ,  F03D9/25 ,  F03D17/00 ,  F03D80/00 ,  F05B2220/709 ,  F05B2270/80 ,  F05B2270/808 ,  Y02E10/721

Abstract: A system for a wind turbine comprises: one or more devices (12)(30) operatively mounted on a wind turbine (1) for generating an output signal during use; and a voltage source (22)(32) in electrical connection with the one or more devices (12)(30) for powering the one or more devices during use. The voltage source (22)(32) comprises at least one layer of a voltage generating material (24) in the form of a dielectric electroactive polymer capable of producing a voltage upon deformation. The at least one layer of voltage generating material is incorporated into a wind turbine component (5)(2) which is subject to deformation during operation of the wind turbine (1).

公开(公告)号：EP2666223A1

公开(公告)日：2013-11-27

申请号：EP12701432.2

申请日：2012-01-13

Applicant: Vestas Wind Systems A/S

Inventor： HJORT, Thomas

IPC: H02J3/48 ,  F03D9/00 ,  F03D7/02

CPC classification number: F03D9/255 ,  F03D7/0272 ,  F03D7/028 ,  F03D9/257 ,  F05B2240/96 ,  F05B2270/1033 ,  H02J3/386 ,  H02J3/48 ,  H02M7/493 ,  H02M2001/325 ,  H02M2001/327 ,  Y02E10/723 ,  Y02E10/763 ,  Y02P70/523

Abstract: A wind turbine is arranged to operate in a fully-functional converter mode and a faulty-converter mode. A plurality of converters are arranged to share electric current in the fully-functional converter mode. The converters are dimensioned not only to operate at nominal active current but to provide an over-current margin to enable reactive current to be produced on top of the nominal active current in the fully-functional converter mode. In the fully-functional converter mode the converters are caused to produce reactive current on top of the nominal active current. In response to a fault of one or more of the converters, operation is changed from the fully-functional converter mode to the faulty-converter mode. In the faulty-converter mode, one or more other converters of the converter system are caused to produce additional active current by using their over-current margin to compensate at least partly for a reduction of active-current production due to the fault of one of the converters, and to reduce the reactive-current production by the other converter correspondingly.

Abstract translation: 风力涡轮机布置成在全功能转换器模式和故障转换器模式下操作。 多个转换器布置成在全功能转换器模式下共享电流。 转换器的尺寸不仅在额定有功电流下工作，而且提供过流裕度，以在全功能转换器模式下在标称有功电流之上产生无功电流。 在全功能转换器模式下，使转换器在额定有功电流之上产生无功电流。 响应于一个或多个转换器的故障，操作从全功能转换器模式改变到故障转换器模式。 在故障转换器模式中，转换器系统的一个或多个其他转换器通过使用其过流裕度来产生额外的有效电流，以至少部分地补偿由于以下之一的故障导致的有功电流产生的减少 转换器，并相应地减少另一个转换器的无功电流产生。

公开(公告)号：EP2643663A1

公开(公告)日：2013-10-02

申请号：EP11790557.0

申请日：2011-11-23

Applicant: Vestas Wind Systems A/S

Inventor： GLAVIND, Lars ,  HJORT, Thomas ,  OLESEN, Ib Svend

IPC: G01D5/26 ,  H04B10/18 ,  F03D7/04

CPC classification number: G01J1/0425 ,  F03D9/25 ,  F03D17/00 ,  F03D80/00 ,  G01D5/35303 ,  G01D5/35316 ,  G01D5/35345 ,  G01M5/0016 ,  G01M5/0033 ,  G01M5/0091 ,  G01M11/083 ,  H02K9/24 ,  H02K11/25 ,  Y02E10/725

Abstract: A sensor system for measuring an operating parameter of a wind turbine component is described. The fiber optic sensor system comprises a light source for outputting light in a predetermined range of wavelengths, and an optical fiber comprising a long Fiber Bragg Grating, extending continuously over a length of the optical fiber to provide a continuous measurement region in the optical fiber. The optical fiber is coupled to the wind turbine component such that the continuous measurement region is located at a region of the wind turbine component to be sensed, and such that the grating period at each location in the continuous measurement period is dependent upon the value of the operating parameter at that location. A light detector receives light from the optical fiber, and provides an output signal to the controller indicating the intensity of the received light; based on the detected light, a value for the operating parameter is determined.

Abstract translation: 描述了用于测量风力涡轮机部件的操作参数的传感器系统。 光纤传感器系统包括用于输出预定波长范围的光的光源，以及包括在光纤长度上连续延伸的长光纤布拉格光栅的光纤，以在光纤中提供连续的测量区域。 光纤耦合到风力涡轮机部件，使得连续测量区域位于要感测的风力涡轮机部件的区域，并且使得连续测量周期中每个位置处的光栅周期取决于 该位置的操作参数。 光检测器从光纤接收光，并向控制器提供指示接收光的强度的输出信号; 基于检测到的光，确定操作参数的值。

公开(公告)号：EP2564163A2

公开(公告)日：2013-03-06

申请号：EP11720025.3

申请日：2011-04-28

Applicant: Vestas Wind Systems A/S

Inventor： HJORT, Thomas ,  GLAVIND, Lars

IPC: G01D3/08 ,  G01D5/353 ,  G01D18/00

CPC classification number: G01K11/3206 ,  G01D5/35316 ,  G01K1/14

Abstract: A sensor system and method for a power electronics module is discussed. The system comprises a optical fibre 318 mounted inside the module housing 302 and connected to an external sensor system 320 (not shown). The optical fibre 318 is arranged so that it lies proximate to one or more semiconductor dies 308 within the housing, and can sense their temperature. The fibre can be connected to the die 308 by glue, mechanical connection, or can in other examples by provided in the underlying support structure such as a DCB (direct copper bonded ceramic structure) or base plate 304. The fibre can contain an optical grating, such as an FBG or LPG, or can operate based on interferometry, to detect temperature or strain.

公开(公告)号：EP2394051A2

公开(公告)日：2011-12-14

申请号：EP09801704.9

申请日：2009-12-22

Applicant: Vestas Wind Systems A/S

Inventor： LARSEN, Gerner ,  HJORT, Thomas

IPC: F03D1/00

CPC classification number: F03D11/0058 ,  F03D80/82 ,  F05B2240/14 ,  F05B2250/30 ,  Y02E10/722 ,  Y02E10/726

Abstract: A wind turbine comprising a nacelle (1) is disclosed. The nacelle (1) accommodates at least a generator (3) and power electronics electrically interconnected between the generator (3) and a power grid. At least one power electronic component (10, 11, 12) is removably arranged in the nacelle (1) in a region positioned between a floor level of the nacelle (1) and a lower limiting surface, e.g. a bottom wall, of the nacelle (1). The space available in the interior parts of the nacelle (1) is thereby utilised to a greater extent than in prior art wind turbines, and replacement of a power electronic component (10, 11, 12) can be performed using ordinary lifting equipment. Furthermore, the risk of injury to maintenance personnel is reduced.

公开(公告)号：EP2761263B1

公开(公告)日：2019-01-09

申请号：EP12762530.9

申请日：2012-09-19

Applicant: Vestas Wind Systems A/S

Inventor： HJORT, Thomas ,  GLAVIND, Lars

IPC: G01L1/24 ,  G01M5/00 ,  G01M11/08 ,  G01D5/353 ,  G01K11/32

公开(公告)号：EP2666223B1

公开(公告)日：2018-09-12

申请号：EP12701432.2

申请日：2012-01-13

Applicant: Vestas Wind Systems A/S

Inventor： HJORT, Thomas

IPC: H02J3/48 ,  F03D9/00 ,  F03D7/02

CPC classification number: F03D9/255 ,  F03D7/0272 ,  F03D7/028 ,  F03D9/257 ,  F05B2240/96 ,  F05B2270/1033 ,  H02J3/386 ,  H02J3/48 ,  H02M7/493 ,  H02M2001/325 ,  H02M2001/327 ,  Y02E10/723 ,  Y02E10/725 ,  Y02E10/763 ,  Y02P70/523

Abstract: A wind turbine is arranged to operate in a fully-functional converter mode and a faulty-converter mode. A plurality of converters are arranged to share electric current in the fully-functional converter mode. The converters are dimensioned not only to operate at nominal active current but to provide an over-current margin to enable reactive current to be produced on top of the nominal active current in the fully-functional converter mode. In the fully-functional converter mode the converters are caused to produce reactive current on top of the nominal active current. In response to a fault of one or more of the converters, operation is changed from the fully-functional converter mode to the faulty-converter mode. In the faulty-converter mode, one or more other converters of the converter system are caused to produce additional active current by using their over-current margin to compensate at least partly for a reduction of active-current production due to the fault of one of the converters, and to reduce the reactive-current production by the other converter correspondingly.

公开(公告)号：EP2643663B1

公开(公告)日：2015-03-04

申请号：EP11790557.0

申请日：2011-11-23

Applicant: Vestas Wind Systems A/S

Inventor： GLAVIND, Lars ,  HJORT, Thomas ,  OLESEN, Ib Svend

IPC: F03D9/00 ,  G01J1/04 ,  F03D11/00 ,  G01M5/00 ,  G01D5/353 ,  G01M11/08 ,  H02K9/24 ,  H02K11/00

CPC classification number: G01J1/0425 ,  F03D9/25 ,  F03D17/00 ,  F03D80/00 ,  G01D5/35303 ,  G01D5/35316 ,  G01D5/35345 ,  G01M5/0016 ,  G01M5/0033 ,  G01M5/0091 ,  G01M11/083 ,  H02K9/24 ,  H02K11/25 ,  Y02E10/725

Abstract: A sensor system for measuring an operating parameter of a wind turbine component is described. The fiber optic sensor system comprises a light source for outputting light in a predetermined range of wavelengths, and an optical fiber comprising a long Fiber Bragg Grating, extending continuously over a length of the optical fiber to provide a continuous measurement region in the optical fiber. The optical fiber is coupled to the wind turbine component such that the continuous measurement region is located at a region of the wind turbine component to be sensed, and such that the grating period at each location in the continuous measurement period is dependent upon the value of the operating parameter at that location. A light detector receives light from the optical fiber, and provides an output signal to the controller indicating the intensity of the received light; based on the detected light, a value for the operating parameter is determined.