Method of servicing wind power plant using azimuth angle
    1.
    发明授权
    Method of servicing wind power plant using azimuth angle 有权
    使用方位角维修风力发电厂的方法

    公开(公告)号:US09181925B2

    公开(公告)日:2015-11-10

    申请号:US13046892

    申请日:2011-03-14

    摘要: The invention concerns a method for the determination of an azimuth angle for servicing purposes (αw) of a wind power plant with a machinery housing that is rotatable on a tower through an azimuth angle (α) and a rotor that is rotatable on a machinery housing through a rotor angle (δ) such that a plurality of combinations of rotor angles (δ) and azimuth angles (α) is adjusted, that are determined at the rotor subject to the influence of a turbulent wind field, which is effecting torques, for the adjusted combinations of rotor angles (δ) and azimuth angles (α) and the associated azimuth angle (α), a torque envelope of the torque-azimuth angle associations is determined, surrounding areas (U(α)) with comparable sector sizes of the azimuth angle (α) are generated and associated magnitude values of the torque envelope are determined, a surrounding area (U(αw)) with magnitude-wise smaller torque envelope values than the neighboring surrounding areas is selected and the azimuth angle for servicing purposes (αw) is determined within the selected surrounding area (U(aw)).

    摘要翻译: 本发明涉及一种用于确定风力发电设备的维修目的(αw)的方法,所述风力发电设备具有可在塔架上通过方位角(α)旋转的机械壳体和可在机械壳体上旋转的转子 通过转子角度(δ),使得转子角度(δ)和方位角(α)的多个组合被调节,其在转子受到影响扭矩的湍流风场的影响下确定,用于 旋转角度(δ)和方位角(α)的调整组合和相关联的方位角(α)确定扭矩 - 方位角关联的扭矩包络,具有可比扇区大小的周围区域(U(α)) 产生方位角(α),并且确定扭矩包络的相关联的幅值,选择具有相邻周围区域的幅度更小的扭矩包络值的周围区域(U(αw)),并且方位角a 在选择的周围区域(U(aw))内确定用于维修目的(αw)的gle。

    Wind farm capable of staggered disconnection
    2.
    发明授权
    Wind farm capable of staggered disconnection 有权
    风力发电场能够交错断开

    公开(公告)号:US08335594B2

    公开(公告)日:2012-12-18

    申请号:US12227200

    申请日:2007-05-07

    IPC分类号: G05D11/00

    摘要: The invention relates to a method of operating a wind farm intended for connection to an electric power network, which wind farm includes at least three wind turbine generator systems. At least one actual value for a wind speed or a parameter associated with wind speed is determined for each wind turbine generator system which are divided at least temporarily into predetermined groups. A first disconnect value is assigned to one group of wind turbine generator systems and a second different disconnect value is assigned to a second group of wind turbine generator systems. Actual values are assigned to disconnect values, and compared thereto. When the actual value exceeds the disconnect value the associated group of wind turbine generator systems is automatically disconnected.

    摘要翻译: 本发明涉及一种操作用于连接到电力网络的风力发电场的方法,所述风电场包括至少三个风力发电机系统。 对于至少暂时划分成预定组的每个风力涡轮发电机系统,确定风速或与风速相关联的参数的至少一个实际值。 第一断开值被分配给一组风力涡轮发电机系统,并且第二不同的断开值被分配给第二组风力涡轮发电机系统。 实际值被分配给断开值,并与之进行比较。 当实际值超过断开值时,相关组的风力涡轮发电机系统将自动断开。

    Wind Farm Capable of Staggered Disconnection
    3.
    发明申请
    Wind Farm Capable of Staggered Disconnection 有权
    风力发电场能够断开交错

    公开(公告)号:US20090102195A1

    公开(公告)日:2009-04-23

    申请号:US12227200

    申请日:2007-05-07

    IPC分类号: H02P9/04

    摘要: The invention relates to a method of operating a wind farm intended for connection to an electric power network, which wind farm includes at least two wind turbine generator systems (WEA1, WEA2, WEA3, WEA4, WEA5). At least one actual value (vt1(WEA1), . . . , vt3(WEA5)) for a wind speed or a parameter associated with wind speed is determined for each of the at least two wind turbine generator systems (WEA1, WEA2, . . . , WEA5), and the at least two wind turbine generator systems (WEA1, WEA2, WEA3, WEA4, WEA5) are divided at least temporarily into at least two predeterminable groups (G1, G2, G3). At least one first disconnect value (At1(G1), At2(G1), At3(G1)) is assigned to each wind turbine generator system of the first group (G1), and at least one second disconnect value (At1(G2), At2(G2), At3(G2)), which is different from the at least one first disconnect value (At1(G1), At2(G1), At3(G1)), is assigned to each wind turbine generator system of the second group (G2). The at least one actual value (vt1(WEA1), . . . , vt3(WEA5)) is assigned one of the disconnect values (At1(G1), . . . , At3(G3)), and the actual values (vt1(WEA1), . . . , vt3(WEA3)) are compared with the assigned disconnect values (At1(G1), . . . , At3(G3)), and, when a disconnect value (At1(G1), . . . , At3(G3)) is exceeded by the assigned actual value (vt1(WEA1), . . . , vt3(WEA3)), the wind turbine generator system or group of wind turbine generator systems (G1, G2, G3) which is assigned to the disconnect value (At1(G1), . . . , At3(G3)) is automatically disconnected.

    摘要翻译: 本发明涉及一种操作用于连接到电力网络的风力发电场的方法,该风电场包括至少两个风力涡轮发电机系统(WEA1,WEA2,WEA3,WEA4,WEA5)。 对于至少两个风力涡轮发电机系统(WEA1,WEA2,...中的每一个)确定用于风速的风速或与风速相关联的参数的至少一个实际值(vt1(WEA1),...,vt3(WEA5))。 至少两个风力涡轮发电机系统(WEA1,WEA2,WEA3,WEA4,WEA5)至少暂时分成至少两个可预定组(G1,G2,G3)。 至少一个第一断开值(At1(G1),At2(G1),At3(G1))被分配给第一组(G1)的每个风力涡轮发电机系统,并且至少一个第二断开值(At1(G2) ,与至少一个第一断开值(At1(G1),At2(G1),At3(G1))不同的At2(G2),At3(G2))被分配给每个风力涡轮发电机系统 第二组(G2)。 分配至少一个实际值(vt1(WEA1),...,vt3(WEA5))中的一个断开值(At1(G1),...,At3(G3))和实际值(vt1 (WEA1),...,vt3(WEA3))与指定的断开值(At1(G1),...,At3(G3))进行比较,当断开值(At1(G1) 风力发电机组或风力发电机系统组(G1,G2,G3),超过了分配的实际值(vt1(WEA1),...,vt3(WEA3)),At3(G3) 被分配到断开值(At1(G1),...,At3(G3))被自动断开。

    Wind energy plant with dynamic power distribution between the pitch system and supplementary electrical load
    4.
    发明授权
    Wind energy plant with dynamic power distribution between the pitch system and supplementary electrical load 有权
    风力发电厂在间距系统和辅助电力负载之间具有动态功率分配

    公开(公告)号:US08922040B2

    公开(公告)日:2014-12-30

    申请号:US13574572

    申请日:2011-01-21

    IPC分类号: F03D9/00 F03D11/00 F03D7/02

    摘要: A wind energy plant comprising a rotor having blades and a generator driven by said rotor for generating electric energy. The pitch of the blades can be adjusted and a pitch system for adjusting the pitch angle of the blades is provided, which is supplied by a hub power source. An additional electric load is provided on the hub. A pitch power control device is provided which dynamically distributes the power of the hub power source between the pitch system and the additional electric load and further acts on the pitch system such that its power consumption during high-load operation is reduced. Thus, the power consumption of the pitch system during high-load operation can be reduced and additional power provided for operating the additional load. Even large additional loads, such as a blade heater, can be operated in this way, without having to boost the hub power source.

    摘要翻译: 一种风力发电设备,包括具有叶片的转子和由所述转子驱动的用于产生电能的发电机。 可以调节叶片的间距,并且提供用于调节叶片的俯仰角的俯仰系统,其由轮毂动力源提供。 在轮毂上提供额外的电负载。 提供一种俯仰功率控制装置,其在俯仰系统和附加电力负载之间动态地分配轮毂电源的功率,并进一步作用在俯仰系统上,使得其在高负荷运行期间的功率消耗降低。 因此,可以降低高负载运行期间的俯仰系统的功率消耗,并为附加负载运行提供附加功率。 甚至可以以这种方式操作诸如叶片加热器的大量附加负载,而不必增加集线器电源。

    WIND ENERGY PLANT HAVING A BLADE HEATER
    5.
    发明申请
    WIND ENERGY PLANT HAVING A BLADE HEATER 有权
    具有叶片加热器的风力发电厂

    公开(公告)号:US20130026757A1

    公开(公告)日:2013-01-31

    申请号:US13574572

    申请日:2011-01-21

    IPC分类号: H02P9/04

    摘要: A wind energy plant comprising a rotor having blades and a generator driven by said rotor for generating electric energy. The pitch of the blades can be adjusted and a pitch system for adjusting the pitch angle of the blades is provided, which is supplied by a hub power source. An additional electric load is provided on the hub. A pitch power control device is provided which dynamically distributes the power of the hub power source between the pitch system and the additional electric load and further acts on the pitch system such that the power consumption thereof during high-load operation is reduced. Thus, the power consumption of the pitch system during high-load operation can be reduced and additional power provided for operating the additional load. Even high-performance additional loads, such as a blade heater, can be operated in this way, without having to boost the hub power source.

    摘要翻译: 一种风力发电设备,包括具有叶片的转子和由所述转子驱动的用于产生电能的发电机。 可以调节叶片的间距,并且提供用于调节叶片的俯仰角的俯仰系统,其由轮毂动力源提供。 在轮毂上提供额外的电负载。 提供了一种俯仰功率控制装置,其在俯仰系统和附加电力负载之间动态地分配轮毂电源的功率,并进一步作用在俯仰系统上,使得其在高负荷运行期间的功率消耗降低。 因此,可以降低高负载运行期间的俯仰系统的功率消耗,并为附加负载运行提供附加功率。 即使是高性能的附加负载,例如叶片加热器,也可以以这种方式进行操作,而无需增加集线器电源。

    Method and system for operating a wind energy installation
    6.
    发明授权
    Method and system for operating a wind energy installation 有权
    运行风力发电设备的方法和系统

    公开(公告)号:US08247913B2

    公开(公告)日:2012-08-21

    申请号:US12428255

    申请日:2009-04-22

    IPC分类号: H02P9/04

    摘要: A method for operating a wind energy installation and a system for implementing the method. An oblique incident flow value, which represents the difference between the wind direction and the direction of a rotor axis of the wind energy installation, and a load value, which represents the load state of the wind energy installation, are determined. A total load value is determined based on the load value and the oblique incident flow value. The rotor rotation speed is reduced when the total load value is above a first limit value. The wind energy installation is shut down when, in addition, a second limit value is exceeded. The method makes it possible to react objectively to oblique incident flows and can reduce a load on a wind energy installation without causing large yield losses.

    摘要翻译: 一种用于操作风能装置的方法和用于实施该方法的系统。 确定表示风能装置的风向与转子轴方向的差的倾斜入射流量值和表示风能装置的负载状态的负荷值。 根据负载值和斜入射流量值确定总负载值。 当总负载值高于第一极限值时,转子转速降低。 此外,当超过第二极限值时,风能装置关闭。 该方法可以客观地反应斜入射流,并且可以减少风能装置的负荷,而不会造成大的产量损失。