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    Method and sensor setup for determination of deflection and/or strain for failure detection
    5.
    发明授权
    Method and sensor setup for determination of deflection and/or strain for failure detection 有权
    用于确定故障检测的偏转和/或应变的方法和传感器设置

    公开(公告)号：US08075267B2

    公开(公告)日：2011-12-13

    申请号：US12283098

    申请日：2008-09-09

    申请人： Peder Bay Enevoldsen ,  Ib Frydendal

    发明人： Peder Bay Enevoldsen ,  Ib Frydendal

    IPC分类号： F01D5/00 ,  F01D25/00 ,  F04D29/00

    CPC分类号： G01B21/32 ,  F03D1/065 ,  F03D7/0224 ,  F03D17/00 ,  F05B2260/96 ,  F05B2270/331 ,  F05B2270/804 ,  F05B2270/821 ,  G01B7/16 ,  G01B11/16 ,  G01B17/04 ,  Y02E10/721 ,  Y02E10/723

    摘要： A method for determining the deflection and/or strain of an elongated member of a component is provided, in which a first point and a second point are assigned to the same side of an elongated member of the component, wherein the deflection and/or strain of the elongated member is determined by determining the distance between the second point and a third point, which is connected to the first point by an inflexible support, whereby the distance between the first point and the third point is considerably longer than the distance between the second point and the third point, and wherein the distance between the second point and the third point is determined in time steps and the frequency of the change of the distance is analyzed to detect frequency changes. Furthermore, an elongated member of a component subject to strain and comprises a sensor unit for determining the deflection and/or strain of the elongated member.

    摘要翻译： 提供了一种用于确定部件的细长构件的偏转和/或应变的方法，其中第一点和第二点被分配给部件的细长构件的同一侧，其中偏转和/或应变 通过确定第二点和第三点之间的距离来确定细长构件，该第三点与第一点之间由不灵活的支撑连接，由此第一点与第三点之间的距离比第 第二点和第三点，并且其中在时间步长中确定第二点和第三点之间的距离，并分析距离变化的频率以检测频率变化。 此外，受到应变的部件的细长构件并且包括用于确定细长构件的偏转和/或应变的传感器单元。

    Sensor setup for determination of deflection and/or strain
    6.
    发明申请
    Sensor setup for determination of deflection and/or strain 有权
    用于确定偏转和/或应变的传感器设置

    公开(公告)号：US20090068014A1

    公开(公告)日：2009-03-12

    申请号：US12283070

    申请日：2008-09-09

    申请人： Peder Bay Enevoldsen ,  Ib Frydendal

    发明人： Peder Bay Enevoldsen ,  Ib Frydendal

    IPC分类号： F03D11/00

    CPC分类号： G01B21/32 ,  F03D1/065 ,  F03D7/0224 ,  F03D17/00 ,  F05B2260/96 ,  F05B2270/331 ,  F05B2270/804 ,  F05B2270/821 ,  G01B7/16 ,  G01B11/16 ,  G01B17/04 ,  Y02E10/721 ,  Y02E10/723

    摘要： An elongated member of a wind turbine is disclosed which is potentially subject to strain and which comprises a sensor unit for determining the deflection and/or strain of the elongated member between a first point and a second point, which are assigned to the same side of the elongated member, and the sensor unit comprises a proximity sensor for determining the distance between the second point and a third point, the third point being connected to the first point by an inflexible support, the distance between the first point and the third point being considerably longer than the distance between the second point and the third point, wherein the sensor unit comprises a compressible and/or stretchable element located between the second point and the third point. Moreover, a wind turbine rotor blade and a tower of a wind turbine, each comprising a previously described elongated member, are disclosed.

    摘要翻译： 公开了一种风力涡轮机的细长构件，其可能受到应变，并且其包括用于确定第一点和第二点之间的细长构件的偏转和/或应变的传感器单元，其被分配到 所述细长构件和所述传感器单元包括用于确定所述第二点和第三点之间的距离的接近传感器，所述第三点通过不灵活的支撑件连接到所述第一点，所述第一点和所述第三点之间的距离为 比第二点和第三点之间的距离长得多，其中传感器单元包括位于第二点和第三点之间的可压缩和/或可拉伸元件。 此外，公开了风力涡轮机转子叶片和风力涡轮机的塔架，每个风力涡轮机的塔架包括前述的细长构件。

    Method and sensor setup for determination of deflection and/or strain for failure detection
    7.
    发明申请
    Method and sensor setup for determination of deflection and/or strain for failure detection 有权
    用于确定故障检测的偏转和/或应变的方法和传感器设置

    公开(公告)号：US20090067990A1

    公开(公告)日：2009-03-12

    申请号：US12283098

    申请日：2008-09-09

    申请人： Peder Bay Enevoldsen ,  Ib Frydendal

    发明人： Peder Bay Enevoldsen ,  Ib Frydendal

    IPC分类号： F03D11/00

    CPC分类号： G01B21/32 ,  F03D1/065 ,  F03D7/0224 ,  F03D17/00 ,  F05B2260/96 ,  F05B2270/331 ,  F05B2270/804 ,  F05B2270/821 ,  G01B7/16 ,  G01B11/16 ,  G01B17/04 ,  Y02E10/721 ,  Y02E10/723

    摘要： A method for determining the deflection and/or strain of an elongated member of a component is provided, in which a first point (16) and a second point (17) are assigned to the same side (11, 12) of an elongated member of the component, wherein the deflection and/or strain of the elongated member is determined by determining the distance between the second point (17) and a third point (18), which is connected to the first point (16) by an inflexible support (5), whereby the distance between the first point (16) and the third point (18) is considerably longer than the distance between the second point (17) and the third point (18), and wherein the distance between the second point (17) and the third point (18) is determined in time steps and the frequency of the change of the distance is analysed to detect frequency changes. Furthermore, an elongated member of a component is disclosed which is potentially subject to strain and which comprises a sensor unit for determining the deflection and/or strain of the elongated member between a first point (16) and a second point (17), which are assigned to the same side (11, 12) of the elongated member, the sensor unit comprises a proximity sensor (4) for determining the distance between the second point (17) and a third point (18), the third point (18) being connected to the first point (16) by an inflexible support (5), the distance between the first point (16) and the third point (18) being considerably longer than the distance between the second point (17) and the third point (18), the sensor unit further comprises a frequency detecting unit for detecting the frequency of the change of the distance.

    摘要翻译： 提供了一种用于确定部件的细长构件的偏转和/或应变的方法，其中将第一点（16）和第二点（17）分配给细长构件的相同侧（11,12） 其中所述细长构件的偏转和/或应变通过确定通过不灵活的支撑件连接到第一点（16）的第二点（17）和第三点（18）之间的距离来确定， （5），由此第一点（16）和第三点（18）之间的距离比第二点（17）和第三点（18）之间的距离长得多，并且其中第二点 （17）和第三点（18）在时间步长中确定，并且分析距离变化的频率以检测频率变化。 此外，公开了一种部件的细长构件，其可能受到应变，并且其包括用于确定第一点（16）和第二点（17）之间的细长构件的偏转和/或应变的传感器单元， 传感器单元包括用于确定第二点（17）和第三点（18）之间的距离的接近传感器（4），第三点（18） ）通过不弯曲的支撑（5）连接到第一点（16），第一点（16）和第三点（18）之间的距离比第二点（17）和第三点 点（18），传感器单元还包括用于检测距离变化的频率的频率检测单元。

    Sensor setup for determination of deflection and/or strain
    8.
    发明授权
    Sensor setup for determination of deflection and/or strain 有权
    用于确定偏转和/或应变的传感器设置

    公开(公告)号：US08123480B2

    公开(公告)日：2012-02-28

    申请号：US12283070

    申请日：2008-09-09

    申请人： Peder Bay Enevoldsen ,  Ib Frydendal

    发明人： Peder Bay Enevoldsen ,  Ib Frydendal

    IPC分类号： F03D11/00

    CPC分类号： G01B21/32 ,  F03D1/065 ,  F03D7/0224 ,  F03D17/00 ,  F05B2260/96 ,  F05B2270/331 ,  F05B2270/804 ,  F05B2270/821 ,  G01B7/16 ,  G01B11/16 ,  G01B17/04 ,  Y02E10/721 ,  Y02E10/723

    摘要： An elongated member of a wind turbine is disclosed which is potentially subject to strain and which comprises a sensor unit for determining the deflection and/or strain of the elongated member between a first point and a second point, which are assigned to the same side of the elongated member, and the sensor unit comprises a proximity sensor for determining the distance between the second point and a third point, the third point being connected to the first point by an inflexible support, the distance between the first point and the third point being considerably longer than the distance between the second point and the third point, wherein the sensor unit comprises a compressible and/or stretchable element located between the second point and the third point. Moreover, a wind turbine rotor blade and a tower of a wind turbine, each comprising a previously described elongated member, are disclosed.

    摘要翻译： 公开了一种风力涡轮机的细长构件，其可能受到应变，并且其包括用于确定第一点和第二点之间的细长构件的偏转和/或应变的传感器单元，其被分配到 所述细长构件和所述传感器单元包括用于确定所述第二点和第三点之间的距离的接近传感器，所述第三点通过不灵活的支撑件连接到所述第一点，所述第一点和所述第三点之间的距离为 比第二点和第三点之间的距离长得多，其中传感器单元包括位于第二点和第三点之间的可压缩和/或可拉伸元件。 此外，公开了风力涡轮机转子叶片和风力涡轮机的塔架，每个风力涡轮机的塔架包括前述的细长构件。

    METHOD AND ARRANGEMENT FOR DETECTING A BLADE PITCH ANGLE UNBALANCE OF A ROTOR BLADE SYSTEM OF A WIND TURBINE
    9.
    发明申请
    METHOD AND ARRANGEMENT FOR DETECTING A BLADE PITCH ANGLE UNBALANCE OF A ROTOR BLADE SYSTEM OF A WIND TURBINE 审中-公开
    用于检测风轮转子叶片系统的叶片角度不平衡的方法和装置

    公开(公告)号：US20120230820A1

    公开(公告)日：2012-09-13

    申请号：US13401094

    申请日：2012-02-21

    申请人： Ib Frydendal ,  Johnny Rieper

    发明人： Ib Frydendal ,  Johnny Rieper

    IPC分类号： F03D11/00

    CPC分类号： F03D7/0224 ,  F03D7/0204 ,  F05B2260/70 ,  F05B2270/326 ,  F05B2270/331 ,  Y02E10/721 ,  Y02E10/723

    摘要： A method is provided for detecting a blade pitch angle unbalance of a rotor blade system of a wind turbine, the rotor blade system rotating around a rotor rotation axis. The method includes yawing the rotor rotation axis about a yawing axis transverse to the rotor rotation axis. The method also includes obtaining a load signal indicative of a load due to the yawing. The method further includes analyzing the load signal regarding a frequency component of the load signal, and detecting the blade pitch angle unbalance based on the analyzed load signal.

    摘要翻译： 提供一种用于检测风力涡轮机的转子叶片系统的叶片俯仰角不平衡的方法，所述转子叶片系统围绕转子旋转轴线旋转。 该方法包括绕转子旋转轴线偏转转子旋转轴线。 该方法还包括获得指示由于偏航引起的负载的负载信号。 该方法还包括分析关于负载信号的频率分量的负载信号，以及基于所分析的负载信号来检测叶片俯仰角不平衡。

    DETERMINING AN EQUIVALENT MECHANICAL LOAD
    10.
    发明申请
    DETERMINING AN EQUIVALENT MECHANICAL LOAD 有权
    确定等效机械载荷

    公开(公告)号：US20120035864A1

    公开(公告)日：2012-02-09

    申请号：US13263893

    申请日：2009-06-29

    申请人： Ib Frydendal

    发明人： Ib Frydendal

    IPC分类号： G06F19/00 ,  G01L1/22

    CPC分类号： G05B23/0221

    摘要： A method for determining an equivalent mechanical load of a component includes a dynamic mechanical loading. A first measurement value of the mechanical load of the component is measured and compared to a first reference value. Further, at least one count value representing the number of load half-cycles of the component is updated based upon the result of comparing, wherein the load half-cycles correspond to a predetermined range of mechanical loads and occur within a time period prior to the measurement of the first measurement value. A first equivalent mechanical load of the component is determined based on the first updated count value. It is further described a program element and a computer-readable medium having stored a program for controlling the described equivalent mechanical load determining method.

    摘要翻译： 用于确定组件的等效机械负载的方法包括动态机械负载。 测量部件的机械载荷的第一测量值并将其与第一参考值进行比较。 此外，基于比较的结果，更新表示部件的负载半周期数的至少一个计数值，其中负载半周期对应于机械负载的预定范围，并且在 测量第一个测量值。 基于第一更新计数值确定部件的第一等效机械负载。 进一步描述了程序元件和计算机可读介质，其存储有用于控制所述等效机械负载确定方法的程序。