公开(公告)号：US20180164183A1

公开(公告)日：2018-06-14

申请号：US15580397

申请日：2016-06-17

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Ib Svend OLESEN ,  Dan HILTON ,  Johnny NIELSEN ,  Kristian KIIB

IPC: G01M13/02 ,  G01L3/10 ,  G01L1/04 ,  G01B21/32 ,  F16H59/14 ,  F03D17/00 ,  F03D7/02

CPC classification number: G01M13/02 ,  F03D7/00 ,  F03D7/0224 ,  F03D17/00 ,  F05B2270/327 ,  F16H59/14 ,  F16H59/141 ,  F16H59/46 ,  G01B21/32 ,  G01L1/048 ,  G01L3/109 ,  G01L5/26 ,  Y02E10/722 ,  Y02E10/723

Abstract: A method of determining torsional deformation in a drivetrain e.g. of a wind turbine. To provide a reliable and simple deformation assessment, the method comprises the step of generating a first signal representing first rotational speed of a low speed shaft, generating a second signal representing the second rotational speed of a high speed shaft, and determining torsional deformation based on changes in the ratio between the first and second signals.

公开(公告)号：US20200271094A1

公开(公告)日：2020-08-27

申请号：US16068030

申请日：2017-01-10

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Lars GLAVIND ,  Kristian KIIB ,  Ib Svend OLESEN ,  Johnny NIELSEN

IPC: F03D7/04 ,  F03D80/80 ,  F03D17/00

Abstract: A yaw sensor for a wind turbine is described. The yaw sensor comprises a rotary switch, configured to be coupled to a yaw drive gearbox of a wind turbine nacelle, the rotary switch being operable to activate and deactivate an electrical contact in dependence on an amount of yaw rotation of the nacelle relative to a start position. The electrical contact is active at a plurality of first yaw rotation ranges with respect to the start position, and inactive at a plurality of second yaw rotation ranges with respect to the start position, the first and second yaw rotation ranges being interleaved, at least some of the first yaw rotation ranges having different lengths from each other and/or at least some of the second yaw rotation ranges having different lengths from each other. The electrical contact generates an electrical signal when active.

公开(公告)号：US20160131111A1

公开(公告)日：2016-05-12

申请号：US14893145

申请日：2014-05-21

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Ib Svend OLESEN

IPC: F03D7/04

CPC classification number: F03D1/0675 ,  F03D7/0228 ,  F03D17/00 ,  F05B2240/30 ,  F05B2260/72 ,  F05B2270/1033 ,  F05B2270/1095 ,  F05B2270/328 ,  F05B2270/804 ,  Y02E10/721 ,  Y02E10/723

Abstract: The present invention relates to a method and to a wind turbine for determining the tip angle of a blade of a wind turbine rotor during rotation of the rotor. The method comprising: (a) transmitting a light signal from a first blade of the wind turbine rotor towards a second blade of the rotor; (b) receiving the light signal at the second blade of the rotor; and (c) calculating the tip angle of the first or second blade based upon characteristics of the received light signal.

Abstract translation: 本发明涉及一种用于在转子旋转期间确定风力涡轮机转子的叶片的尖角的方法和风力涡轮机。 该方法包括：（a）将来自风力涡轮机转子的第一叶片的光信号传递到转子的第二叶片; （b）在转子的第二叶片处接收光信号; 和（c）基于所接收的光信号的特性来计算第一或第二叶片的尖端角度。

公开(公告)号：US20170342965A1

公开(公告)日：2017-11-30

申请号：US15536091

申请日：2015-12-16

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Ib Svend OLESEN

IPC: F03D17/00 ,  F03D1/06

CPC classification number: F03D17/00 ,  F03D1/06 ,  F05B2240/221 ,  F05B2240/60 ,  F05B2270/331 ,  F05B2270/807 ,  F05B2270/821 ,  Y02E10/721

Abstract: A method of determining the shape of at least part of a wind turbine blade during operation of the wind turbine, the method comprising measuring first and second values of acceleration at one or more locations on the blade, the first and second values of acceleration being in substantially mutually perpendicular directions, and determining a shape parameter of the blade based upon the relative magnitudes of the measured first and second values of acceleration at the one or more locations.

公开(公告)号：US20160186722A1

公开(公告)日：2016-06-30

申请号：US14908879

申请日：2014-07-04

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Ib Svend OLESEN

IPC: F03D7/02 ,  F03D7/04 ,  F03D1/06

CPC classification number: F03D7/0232 ,  F03D1/0675 ,  F03D7/0224 ,  F03D7/048 ,  F03D17/00 ,  F05B2260/821 ,  F05B2270/331 ,  F05B2270/332 ,  F05B2270/804 ,  F05B2270/807 ,  F05B2270/808 ,  Y02E10/721 ,  Y02E10/723

Abstract: Improvements Relating to Wind Turbines A wind turbine apparatus and a method of operating said wind turbine to maintain the load on the rotor blade below a predetermined threshold level is provided. The method comprises: measuring load at a root end of the rotor blade; measuring an acceleration at a location on the rotor blade outboard from the root end, the acceleration being caused by transient loads acting on the rotor blade; and controlling the wind turbine based upon the measured load and the measured acceleration to maintain the load on the rotor blade below a predetermined threshold level.

Abstract translation: 涉及风力发电机的改进提供了风力涡轮机装置和操作所述风力涡轮机以将转子叶片上的负载维持在预定阈值水平以下的方法。 该方法包括：测量转子叶片根部端的负载; 测量从根部外侧的转子叶片上的位置处的加速度，加速度是由作用在转子叶片上的瞬时负载引起的; 以及基于测量的负载和所测量的加速度来控制风力涡轮机，以将转子叶片上的负载维持在预定阈值水平以下。

公开(公告)号：US20190085822A1

公开(公告)日：2019-03-21

申请号：US15536084

申请日：2015-12-16

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Ib Svend OLESEN

IPC: F03D7/02 ,  F03D17/00 ,  F03D1/06 ,  G01D5/34

Abstract: A method of determining a twist angle of a wind turbine blade, the method comprising providing first and second transmitters on the wind turbine blade, the first transmitter being spaced apart from a receiver by a first distance, and the second transmitter being spaced 5 apart from the receiver by a second distance, the transmitters being arranged such that twisting of the blade causes an increase in one of the first or second distances and a decrease in the other of the first or second distances; transmitting a blinking signal from each of the first and second transmitters towards the receiver, the blinking signals having a blinking frequency; varying the blinking frequency of the blinking signals; monitoring the 10 amplitude of the blinking signal received by the receiver as the blinking frequency is varied; determining a particular blinking frequency that results in an increased amplitude of the blinking signal received by the receiver; and using the determined particular blinking frequency to calculate the blade twist angle.

公开(公告)号：US20160053747A1

公开(公告)日：2016-02-25

申请号：US14783904

申请日：2014-04-10

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Ib Svend OLESEN

IPC: F03D11/00 ,  F03D7/04

CPC classification number: F03D11/0025 ,  F03D7/042 ,  F03D17/00 ,  F03D80/30 ,  F03D80/40 ,  F05B2260/20 ,  Y02E10/72

Abstract: Improvements Relating to Wind Turbine Sensors A sensor apparatus for a wind turbine is described. The apparatus comprises a sensor and a heating system. The heating system comprises an optical fibre arranged to transmit electromagnetic radiation from a light source to the sensor. The sensor is irradiated by the electromagnetic radiation thereby heating the sensor and preventing or reducing ice accretion.

Abstract translation: 关于风力涡轮机传感器的改进描述了用于风力涡轮机的传感器装置。 该装置包括传感器和加热系统。 加热系统包括光纤，其被布置成将电磁辐射从光源传输到传感器。 传感器被电磁辐射照射，从而加热传感器并防止或减少积冰。

公开(公告)号：US20190048848A1

公开(公告)日：2019-02-14

申请号：US16076648

申请日：2017-02-10

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Lars GLAVIND ,  Ib Svend OLESEN ,  Morten THØGERSEN ,  Kristian KIIB ,  Johnny NIELSEN

IPC: F03D7/02

Abstract: A yaw sensor for a wind turbine comprises a plurality of rotary switches, each configured to be coupled to a yaw drive gearbox of a wind turbine nacelle, the rotary switches each being operable to activate and deactivate respective associated electrical contacts in dependence on an amount of yaw rotation of the nacelle relative to a start position.Each electrical contact is active at a plurality of first yaw rotation ranges with respect to the start position, and inactive at a plurality of second yaw rotation ranges with respect to the start position, the first and second yaw rotation ranges being interleaved.

公开(公告)号：US20170370350A1

公开(公告)日：2017-12-28

申请号：US15539574

申请日：2015-12-16

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Ib Svend OLESEN ,  Avanindra GUPTA

IPC: F03D80/40 ,  F03D17/00

CPC classification number: F03D80/40 ,  F03D17/00 ,  F05B2260/80 ,  F05B2270/101 ,  F05B2270/304 ,  F05B2270/331 ,  F05B2270/708 ,  F05B2270/807 ,  F05B2270/808 ,  Y02E10/726

Abstract: The present invention provides a method of operating a wind turbine. The wind turbine comprises at least one rotatable blade. The method comprises the steps of providing a load sensor configured to generate a load signal representing loading on the blade, generating a first load signal when the blade is in a first position, and generating a second load signal when the blade is in a second position. Additionally, the method comprises steps of detecting a rotational speed of the blade, calculating a weight force on the blade based on the first and the second load signal, and calculating a centrifugal force on the blade based on the first and the second load signal. Subsequently, the weight force is compared with a predetermined weight force, and the centrifugal force is compared with a predetermined centrifugal force at the detected rotational speed. Finally, a risk of ice throw is determined based on the comparisons of the weight force and the centrifugal force with the predetermined forces.

公开(公告)号：US20150354402A1

公开(公告)日：2015-12-10

申请号：US14763648

申请日：2013-02-14

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Saed EHSANI ,  Erik Carl Lehnskov MIRANDA ,  Ib Svend OLESEN ,  Martin Møller SØRENSEN

IPC: F01D21/00 ,  F01D21/14

CPC classification number: F01D21/003 ,  F01D21/14 ,  F03D17/00 ,  F05B2270/331 ,  F05B2270/332 ,  F05B2270/708

Abstract: To identify abnormal behavior in a turbine blade, a failure detection system generates a “fingerprint” for each blade on a turbine. The fingerprint may be a grouping a dynamic, physical characteristics of the blade such as its mass, strain ratio, damping ratio, and the like. While the turbine is operating, the failure detection system receives updated sensor information that is used to determine the current characteristics of the blade. If the current characteristics deviate from the characteristics in the blade's fingerprint, the failure detection system may compare the characteristics of the blade that deviates from the fingerprint to characteristics of another blade on the turbine. If the current characteristics of the blade are different from the characteristics of the other blade, the failure detection system may change the operational mode of the turbine such as disconnecting the turbine from the utility grid or stopping the rotor.

Abstract translation: 为了识别涡轮叶片中的异常行为，故障检测系统为涡轮机上的每个叶片生成“指纹”。 指纹可以是叶片的动态，物理特性，例如其质量，应变比，阻尼比等。 当涡轮机运行时，故障检测系统接收用于确定叶片的当前特性的更新的传感器信息。 如果当前的特性偏离了刀片指纹的特征，则故障检测系统可以将偏离指纹的刀片的特性与涡轮机上另一个刀片的特性进行比较。 如果叶片的当前特性与其他叶片的特性不同，则故障检测系统可改变涡轮机的操作模式，例如将涡轮机与公用电网断开连接或停止转子。