WIND ENERGY INSTALLATION WITH AN AUTONOMOUS ENERGY SUPPLY FOR A BLADE ADJUSTMENT DEVICE
    71.
    发明申请
    WIND ENERGY INSTALLATION WITH AN AUTONOMOUS ENERGY SUPPLY FOR A BLADE ADJUSTMENT DEVICE 有权
    用于叶片调节装置的自动能源供应的风能安装

    公开(公告)号:US20090243296A1

    公开(公告)日:2009-10-01

    申请号:US12304725

    申请日:2007-06-12

    IPC分类号: H02P9/04

    摘要: Wind energy installation with a generator (13) which is driven by a rotor (2) with adjustable rotor blades (21), for producing electrical energy, wherein a pitch adjustment device (3) is provided for adjusting the blades, which pitch adjustment device comprises an emergency circuit (5) with an energy store (50) for actuating a blade actuating motor (55). The invention provides for a shunt branch (60) with a current-balancing device (6, 6′) to be provided in parallel with the energy store (50), wherein the current-balancing device (6, 6′) is designed so as to control the current shunt branch (60) depending on a feedback current from the blade actuating motor (55). The invention provides a current balancing circuit (6), with which the feedback current occurring in the overrunning state is dissipated in controlled fashion via a shunt branch and therefore the electrical energy store (50) is protected from a damaging feedback current. The invention therefore achieves a situation in which a damaging rise in the voltage of the electrical energy store (50) and a rise in the motor speed of the blade actuating motor (55) are prevented during overrunning operation. The invention relates to a corresponding method.

    摘要翻译: 具有发电机(13)的风能装置,其由具有可调节的转子叶片(21)的转子(2)驱动,用于产生电能,其中设置有用于调节叶片的俯仰调节装置(3),该俯仰调节装置 包括具有用于致动叶片致动马达(55)的能量储存器(50)的紧急电路(5)。 本发明提供了一种具有电流平衡装置(6,6')的分流支路(60),与电能存储器(50)并联设置,其中电流平衡装置(6,6')设计成 以根据来自刀片驱动马达(55)的反馈电流来控制电流分流支路(60)。 本发明提供了一种电流平衡电路(6),通过该电流平衡电路(6),以超控状态发生的反馈电流通过分流支路以受控的方式消散,因此电能存储器(50)被保护免受有害的反馈电流的影响。 因此,本发明实现了在超跑操作期间防止电能存储器(50)的电压的破坏性升高和叶片驱动马达(55)的电机速度的上升的情况。 本发明涉及一种相应的方法。

    METHOD FOR THE OPERATION OF A WIND ENERGY PLANT
    72.
    发明申请
    METHOD FOR THE OPERATION OF A WIND ENERGY PLANT 有权
    风力发电厂运行方法

    公开(公告)号:US20090115191A1

    公开(公告)日:2009-05-07

    申请号:US12259703

    申请日:2008-10-28

    IPC分类号: H02P9/04

    摘要: The invention relates to a method for the operation of a wind energy plant (10), wherein the wind energy plant (10) has a rotor (11) with a rotor axis and at least one rotor blade (15, 15′) arranged on the rotor (11), wherein the rotor blade (15, 15′) is adjustable or adjusted around a rotor blade axis with a predetermined rotor blade pitch angle. Further, at least one rotor blade (15, 15′) is rotated into an idle position, the rotation of the rotor blade (15, 15′) is braked after a first predetermined rotational position of the rotor blade (15, 15′) is reached and the stand-still position of the rotor blade (15, 15′) reached as a result of the braking procedure is captured. Furthermore, the invention relates to a wind energy plant (10) with a rotor (11) and at least one angle-adjustable rotor blade (15, 15′) arranged on the rotor (11).

    摘要翻译: 本发明涉及一种用于操作风力发电设备(10)的方法,其中风能设备(10)具有转子(11),转子轴线和至少一个转子叶片(15,15')布置在 转子(11),其中转子叶片(15,15')以预定的转子叶片桨距角围绕转子叶片轴线可调节或调节。 此外,至少一个转子叶片(15,15')旋转到空转位置,转子叶片(15,15')的旋转在转子叶片(15,15')的第一预定旋转位置之后被制动, 并且捕获由于制动过程而到达转子叶片(15,15')的静止位置。 此外,本发明涉及一种具有转子(11)的风力发电设备(10)和设置在转子(11)上的至少一个角度可调的转子叶片(15,15')。

    Wind energy installation with an extended rotation speed range
    73.
    发明申请
    Wind energy installation with an extended rotation speed range 有权
    风能安装具有延长的转速范围

    公开(公告)号:US20090021014A1

    公开(公告)日:2009-01-22

    申请号:US12170924

    申请日:2008-07-10

    IPC分类号: H02P9/48

    摘要: A wind energy installation includes a wind rotor, a double-fed asynchronous generator driven by the wind rotor, a converter provided with a first part on the generator side connected to a rotor and a second part on the network side connected to a stator of the generator, and a control device providing converter regulation. A mode selector can be switched between a normal operating mode and a reduced voltage operating mode, in which the excitation of the generator is reduced compared to the normal operating mode. The under-excitation produces an additional reactive current, thus reducing the rotor voltage. The rotor voltage can be limited even when the load is high and the network frequency or voltage is incorrect. The usable rotation speed range of the wind energy installation can be extended to provide a more powerful generator with a higher rating, without changing the converter.

    摘要翻译: 风力设备包括风力转子,由风力转子驱动的双馈异步发电机,转子,其设置在发电机侧的与转子连接的第一部分,以及网络侧的与第二部分连接的第二部分 发电机和提供转换器调节的控制装置。 可以在正常操作模式和降低电压工作模式之间切换模式选择器,在正常操作模式和减小电压操作模式中,与正常操作模式相比,发生器的激励减小。 欠激励产生额外的无功电流,从而降低转子电压。 即使负载高,网络频率或电压不正确,也可以限制转子电压。 可以延长风力设备的可用转速范围,以提供更高功率的发电机,而不需要改变转换器。

    Tower for a wind power station
    74.
    发明申请
    Tower for a wind power station 有权
    风力发电站塔

    公开(公告)号:US20060267348A1

    公开(公告)日:2006-11-30

    申请号:US10569164

    申请日:2004-08-25

    IPC分类号: F03D9/00 H02P9/04

    摘要: Disclosed is a tower for a wind power station comprising a machine pod disposed on the tower and a rotor mounted on the machine pod so as to be rotatable about an essentially horizontal axis. Said rotor is provided with at least one blade. The tower is composed of a tubular upper section that is connected to a lower section which is embodied as a lattice tower in a transition zone. The lattice tower encompasses at least three corner posts. The upper tower section forms at least one sixth of the entire tower. The cross section of the lower tower section below the transition zone is greater than the cross section of the upper tower section while the transition zone is configured such that the cross section of the lower tower section is adjusted to the cross section of the upper tower section so as to optimize power flux.

    摘要翻译: 公开了一种用于风力发电站的塔架,包括设置在塔架上的机器舱和安装在机器舱上的转子,以便能够围绕基本上水平的轴线旋转。 所述转子设置有至少一个叶片。 该塔由管状的上部部分组成,该管状上部连接到在过渡区域中实施为格子塔的下部。 格子塔至少包括三个角柱。 上塔架部分形成整个塔架的至少六分之一。 在过渡区域下方的下塔架部分的横截面大于上塔架部分的横截面,而过渡区域被构造成使得下塔架部分的横截面被调整为上塔架部分的横截面 从而优化功率通量。

    Wind energy installation with a heating device
    75.
    发明授权
    Wind energy installation with a heating device 有权
    风力发电装置采用加热装置

    公开(公告)号:US08390140B2

    公开(公告)日:2013-03-05

    申请号:US12742566

    申请日:2008-11-12

    IPC分类号: F03D9/00

    摘要: A wind energy installation connected to a network. The installation includes a tower and a pod having a wind rotor and a generator driven by the wind rotor. The installation further includes a converter configured to output electrical power, a control device provided with a temperature sensor and a heating device, and a preheating module. The preheating module includes a thermal switch configured to monitor a temperature of at least one component of the wind energy installation and a monitoring unit having an output device. The monitoring unit operates the heating device until the thermal switch reaches a threshold, whereupon the output device transmits an enable signal to start the wind energy installation. Operational reliability of the wind energy installation in low ambient temperatures can be thus improved.

    摘要翻译: 连接到网络的风力发电设备。 该装置包括具有风力转子和由风力转子驱动的发电机的塔和荚。 该装置还包括配置成输出电力的转换器,设置有温度传感器和加热装置的控制装置以及预热模块。 预热模块包括被配置为监测风能装置的至少一个部件的温度的热开关和具有输出装置的监视单元。 监控单元操作加热装置直到热开关达到阈值,于是输出装置发送使能信号以启动风能装置。 因此,可以提高风能设备在低环境温度下的运行可靠性。

    Wind park with voltage regulation of the wind energy systems and operating method
    76.
    发明授权
    Wind park with voltage regulation of the wind energy systems and operating method 有权
    风电场风电系统的调压和运行方式

    公开(公告)号:US08373291B2

    公开(公告)日:2013-02-12

    申请号:US12679206

    申请日:2008-09-04

    IPC分类号: F03D9/00

    CPC分类号: H02J3/386 Y02E10/763

    摘要: A wind park and operating method thereof. The wind park includes at least two wind energy systems each comprising a generator and converter for generating electrical energy and a control system, a park master designed for active and idle power control that transmits a control signal for idle power via a communications network to the wind energy systems, and a connection network feeding generated electrical energy into a grid. The wind energy system can include an idle power regulator and a supplementary regulator, the control signals of each of which are linked together. Thus, a combination of idle power and voltage regulation is achieved that combines the advantages of each. Accordingly, the wind park can have high dynamic and stability notwithstanding erratic changes in the grid.

    摘要翻译: 风力发电场及其运行方法。 风力发电场包括至少两个风能系统,每个风能系统包括用于产生电能的发电机和转换器以及控制系统,设计用于主动和空闲功率控制的驻车主控器,其通过通信网向空中发送用于空闲电力的控制信号 能量系统和连接网络将产生的电能馈送到电网中。 风能系统可以包括空闲功率调节器和辅助调节器,其中每个控制信号被连接在一起。 因此,实现了空闲功率和电压调节的组合,其结合了每个的优点。 因此,尽管电网发生不稳定的变化,但风力发电场仍具有较高的动态和稳定性。

    Drive circuit and method for inverters of wind energy installations
    77.
    发明授权
    Drive circuit and method for inverters of wind energy installations 有权
    风力发电设备逆变器的驱动电路及方法

    公开(公告)号:US08368239B2

    公开(公告)日:2013-02-05

    申请号:US12487924

    申请日:2009-06-19

    IPC分类号: F03P9/04

    摘要: A converter for a wind energy installation and a method. The converter includes an inverter which drives a generator via a plurality of phases and an intermediate circuit having an intermediate-circuit voltage between an upper and a lower intermediate-circuit potential. The generator is driven with phase potentials at a variable frequency. A shift value is calculated between an extreme phase potential and one of the intermediate-circuit potentials, a separation value is determined between a middle phase potential and the closest intermediate-circuit potential, and an additional voltage is generated using the separation value as amplitude. The phase potentials are shifted through the shift value and the additional voltage is added to the middle phase potential. Accordingly, the switching elements in the converter do not need to be clocked in every second half-cycle resulting in reduced switching losses and increased current load capacity of the converter.

    摘要翻译: 风力发电装置的转换器和方法。 该转换器包括经由多个相位驱动发电机的逆变器和具有中间电路电压在中间电路上下电位之间的中间电路。 发电机以可变频率的相电位驱动。 在极值相位电位和中间电位电位之间计算偏移值,在中间相位电位和最接近的中间电路电位之间确定分离值,并且使用分离值作为振幅产生附加电压。 相位电位通过移位值移动,并将附加电压加到中间相位电位。 因此,转换器中的开关元件不需要在每个第二半周期中被计时,导致转换器的开关损耗减小和电流负载能力的增加。

    ROTOR BLADE ATTACHMENT
    78.
    发明申请
    ROTOR BLADE ATTACHMENT 有权
    转子叶片附件

    公开(公告)号:US20120148404A1

    公开(公告)日:2012-06-14

    申请号:US13361055

    申请日:2012-01-30

    IPC分类号: F03D11/00

    摘要: A rotor blade attachment, in particular of a wind power plant, for the connection of a rotor blade with an attachment device, including a transverse pin and a connecting device, which can be brought together to establish an operative connection, wherein the connecting device defines a longitudinal axis. The rotor blade attachment is characterized in that the transverse pin in the direction of the longitudinal axis of the connecting device has a higher bending stiffness than transversally to the longitudinal axis. An alternative rotor blade attachment is characterized in that the transverse pins are arranged in at least two rows, wherein at least a first row is arranged closer to the blade-root-side end of the rotor blade than at least a second row.

    摘要翻译: 转子叶片附件,特别是风力发电设备,用于将转子叶片与包括横向销和连接装置的连接装置连接在一起以建立操作连接,其中连接装置限定 纵轴。 转子叶片附件的特征在于,在连接装置的纵向轴线方向上的横向销具有比纵向轴线横向更高的弯曲刚度。 替代的转子叶片附件的特征在于横向销布置成至少两排,其中至少第一排布置成比至少第二排更接近转子叶片的叶片根侧端。

    Connection of components of a wind turbine
    79.
    发明授权
    Connection of components of a wind turbine 有权
    连接风力发电机组件

    公开(公告)号:US08167575B2

    公开(公告)日:2012-05-01

    申请号:US12055005

    申请日:2008-03-25

    IPC分类号: F04D29/044

    摘要: The invention relates to a connection between components of a wind turbine. More specifically, the present invention relates to components for a wind turbine having a diameter of more than 0.5 m, preferably more than 1.0 m, and more preferably more than 1.5 m. The wind turbine includes two components that are connected together, whereby each component has a contact surface. The surface of the contact surface of a first component is softer than the surface of the contact surface of a second component. Further, the surface of the contact surface of the second component is annealed.

    摘要翻译: 本发明涉及风力涡轮机的部件之间的连接。 更具体地说,本发明涉及直径大于0.5m,优选大于1.0m,更优选大于1.5m的风力涡轮机部件。 风力涡轮机包括连接在一起的两个部件,由此每个部件具有接触表面。 第一部件的接触表面的表面比第二部件的接触表面的表面更软。 此外,第二部件的接触表面的表面被退火。

    Method for the operation of a wind energy plant
    80.
    发明授权
    Method for the operation of a wind energy plant 有权
    风力发电厂运行方法

    公开(公告)号:US08157523B2

    公开(公告)日:2012-04-17

    申请号:US12259703

    申请日:2008-10-28

    IPC分类号: B64C11/30

    摘要: The invention relates to a method for the operation of a wind energy plant (10), wherein the wind energy plant (10) has a rotor (11) with a rotor axis and at least one rotor blade (15, 15′) arranged on the rotor (11), wherein the rotor blade (15, 15′) is adjustable or adjusted around a rotor blade axis with a predetermined rotor blade pitch angle. Further, at least one rotor blade (15, 15′) is rotated into an idle position, the rotation of the rotor blade (15, 15′) is braked after a first predetermined rotational position of the rotor blade (15, 15′) is reached and the stand-still position of the rotor blade (15, 15′) reached as a result of the braking procedure is captured. Furthermore, the invention relates to a wind energy plant (10) with a rotor (11) and at least one angle-adjustable rotor blade (15, 15′) arranged on the rotor (11).

    摘要翻译: 本发明涉及一种用于操作风力发电设备(10)的方法,其中风能设备(10)具有转子(11),转子轴线和至少一个转子叶片(15,15')布置在 转子(11),其中转子叶片(15,15')以预定的转子叶片桨距角围绕转子叶片轴线可调节或调节。 此外,至少一个转子叶片(15,15')旋转到空转位置,转子叶片(15,15')的旋转在转子叶片(15,15')的第一预定旋转位置之后被制动, 并且捕获由于制动过程而到达转子叶片(15,15')的静止位置。 此外,本发明涉及一种具有转子(11)的风力发电设备(10)和设置在转子(11)上的至少一个角度可调的转子叶片(15,15')。