Power-conversion installation including a hydraulic machine provided with a runner
    93.
    发明授权
    Power-conversion installation including a hydraulic machine provided with a runner 有权
    电力转换安装包括设有转轮的液压机

    公开(公告)号:US09523343B2

    公开(公告)日:2016-12-20

    申请号:US14113206

    申请日:2012-04-20

    IPC分类号: F03B3/02 F03B3/12

    摘要: The invention relates to a Francis runner (200) for a hydraulic machine, comprising: a wheel (1), which is rotationally symmetrical about an axis of rotation (Z) of the runner (200); a crown (12); and a plurality of inwardly curved vanes (21), each of which has a peripheral edge (212). The peripheral edge (212) of at least one of the vanes is curved, the concavity thereof facing toward the outside of the runner (200). The maximum value of the distance measured between any point on the peripheral edge (202) and a straight line passing through a first connection point between the peripheral edge (212) and the wheel (1), and through a second connection point between the peripheral edge (212) and the crown (12), is at an intermediate point on the peripheral edge (212). The radius (Rn) from the intermediate point (N) is strictly smaller than the radius (Ra) from the first connection point (A). The radius (Rn) from the intermediate point (N) is strictly smaller than the radius (Rc) from the second connection point (C).

    摘要翻译: 本发明涉及一种用于液压机的弗朗西斯流道(200),包括:轮子(1),其围绕流道(200)的旋转轴线(Z)旋转对称; 冠(12); 和多个向内弯曲的叶片(21),每个叶片具有周边边缘(212)。 至少一个叶片的外围边缘(212)是弯曲的,其凹面面向流道(200)的外侧。 在周边边缘(202)上的任何点与通过周缘(212)和轮(1)之间的第一连接点的直线之间的距离和通过外围边缘(202)之间的第二连接点测量的距离的最大值 边缘(212)和表冠(12)位于周边边缘(212)的中间点。 来自中间点(N)的半径(Rn)比来自第一连接点(A)的半径(Ra)小。 来自中间点(N)的半径(Rn)比来自第二连接点(C)的半径(Rc)严格小。

    End winding corona protection
    94.
    发明授权
    End winding corona protection 有权
    端绕电晕保护

    公开(公告)号:US09331540B2

    公开(公告)日:2016-05-03

    申请号:US14315627

    申请日:2014-06-26

    IPC分类号: H02K3/40

    CPC分类号: H02K3/40 H02K2213/03

    摘要: An end winding corona protection including a winding of a rotating electric machine, having a conductor and a groundwall insulation surrounding the conductor, an end winding corona protection arranged on the outer surface of the groundwall insulation, the end winding corona protection comprising a first layer characterized in that the surface resistance of the first layer is in the range of 10 Ohm to 80 Ohm, and in that the end winding corona protection further comprises a second layer arranged on the outer surface of the first layer, wherein the second layer is made of semiconductive material, and wherein third layer is arranged on the outer surface of the second layer and made of medium resistive material.

    摘要翻译: 一种端绕绕电晕保护,包括旋转电机的绕组,具有围绕导体的导体和接地壁绝缘体,布置在接地壁绝缘体的外表面上的端部缠绕电晕保护,端部绕组电晕保护包括第一层, 因为第一层的表面电阻在10欧姆至80欧姆的范围内,并且因为端部绕组电晕保护还包括布置在第一层的外表面上的第二层,其中第二层由 半导体材料,并且其中第三层布置在第二层的外表面上并由中等电阻材料制成。

    Propeller for a hydraulic machine, hydraulic machine equipped with such a propeller, and a method for assembling such a propeller
    95.
    发明授权
    Propeller for a hydraulic machine, hydraulic machine equipped with such a propeller, and a method for assembling such a propeller 有权
    用于液压机的螺旋桨,配有这种螺旋桨的液压机,以及组装这种螺旋桨的方法

    公开(公告)号:US09291145B2

    公开(公告)日:2016-03-22

    申请号:US13485677

    申请日:2012-05-31

    摘要: A propeller for a hydraulic machine includes a hub extending along an axis of rotation of the propeller and vanes extending from the hub and wherein the propeller is formed of several sectors each including a body having a vane attached thereto and wherein the sectors are assembled together by at least one shrunk-on ring which is placed around the bodies. Each sector also includes a side wall and a projection attached to the side wall and which protrudes toward an inside of the hub perpendicularly to the axis (X-X) and wherein at least one washer is connected to the projections inside the hub.

    摘要翻译: 用于液压机械的推进器包括沿着螺旋桨的旋转轴线延伸的轮毂和从轮毂延伸的叶片,并且其中螺旋桨由几个扇形构成,每个扇形体包括具有连接到其上的叶片的主体,并且其中扇区通过 至少一个放置在身体周围的收缩环。 每个扇区还包括侧壁和附接到侧壁并且垂直于轴线(X-X)朝向毂的内部突出的突起,并且其中至少一个垫圈连接到轮毂内的突起。

    TOWERS
    96.
    发明申请
    TOWERS 有权

    公开(公告)号:US20160032608A1

    公开(公告)日:2016-02-04

    申请号:US14776667

    申请日:2014-03-20

    摘要: Methods and arrangements for controlling the tension of tensioning cables in precompressed towers are disclosed. The towers may comprise a tower section (5), a pair of flanges (15, 15′), a plurality of tensioning cables (10A-10D)and at least one tensioner (30AB, 30CD). The pair of flanges may be arranged around an upper and a lower part of the tower section. The at least one tensioner may be arranged between two of the plurality of tensioning cables (10A-10D). The tensioner may pull the tensioning cables in response to a load signal to increase the tension.

    摘要翻译: 公开了用于控制预压缩塔中张紧电缆张力的方法和装置。 塔可以包括塔架部分(5),一对凸缘(15,15'),多个张紧绳索(10A-10D)和至少一个张紧器(30AB,30CD)。 一对凸缘可以围绕塔架的上部和下部布置。 所述至少一个张紧器可以布置在所述多个张紧绳索(10A-10D)中的两个之间。 张紧器可以响应于负载信号拉动张紧电缆以增加张力。

    Rotating electrical machine
    98.
    发明授权
    Rotating electrical machine 有权
    旋转电机

    公开(公告)号:US09130432B2

    公开(公告)日:2015-09-08

    申请号:US13569259

    申请日:2012-08-08

    IPC分类号: H02K3/51

    CPC分类号: H02K3/51

    摘要: A rotating electric machine includes a rotor, having a rotor laminate stack extending in the direction of a machine axis and having a rotor winding, the rotor winding forming a winding head at each of the ends of the rotor laminate stack, said winding head being fastened to a winding head rim, which is arranged concentrically within the winding head and adjoins the rotor laminate stack in the axial direction, in order to intercept centrifugal forces by means of bolts passing radially through the winding head, and a fastening designed to safely absorb axial expansions of the winding head. Simple and secure fastening is achieved by virtue of the bolts being fastened to the winding head rim in each case on a T-shaped hammer profile, which extends in the axial direction and is mounted in axially movable fashion in an associated axial T-shaped slot in the winding head rim.

    摘要翻译: 旋转电机包括:转子,其具有沿机器轴线方向延伸的转子叠片叠层,并且具有转子绕组,所述转子绕组在所述转子叠片堆叠的每个端部处形成绕组头,所述绕组头被紧固 到卷绕头部边缘,其同心地布置在卷绕头部内并且沿着轴向方向邻接转子叠片叠片,以便通过径向穿过卷绕头的螺栓拦截离心力,以及设计成安全地吸收轴向的紧固件 卷绕头的扩展。 通过在每种情况下将螺栓紧固到卷绕头部边缘上的螺栓实现简单且牢固的紧固件,该T形锤轮廓在轴向方向上延伸,并且以轴向移动的方式安装在相关联的轴向T形槽 在卷绕头边缘。

    System for providing electrical power to a wind turbine component
    99.
    发明授权
    System for providing electrical power to a wind turbine component 有权
    用于向风力涡轮机部件提供电力的系统

    公开(公告)号:US09124143B2

    公开(公告)日:2015-09-01

    申请号:US14222990

    申请日:2014-03-24

    摘要: Systems for providing electrical power to one or more wind turbine electrical components is provided comprising an electrical grid and an auxiliary power source for providing electrical power, and one or more wind turbines. Each of the wind turbines includes a wind turbine generator, one or more electrical components, a main voltage transformer for connecting the wind turbine generator to the grid and a switchgear arranged between the main voltage transformer and a point of connection to the grid. One or more switches for alternately connecting either said electrical grid or said auxiliary power source to the switchgears of the wind turbines are provided. The switchgears comprise a switchgear voltage transformer, the switchgear voltage transformer includes primary and secondary windings, the primary windings receiving power from the electrical grid or auxiliary power source, and the secondary windings delivering electrical power to the wind turbine electrical components.

    摘要翻译: 提供了用于向一个或多个风力涡轮机电气部件提供电力的系统,包括用于提供电力的电网和辅助电源以及一个或多个风力涡轮机。 每个风力涡轮机包括风力涡轮发电机,一个或多个电气部件,用于将风力涡轮发电机连接到电网的主电压变压器以及布置在主电压变压器和与电网的连接点之间的开关设备。 提供了用于将所述电网或所述辅助电源交替连接到风力涡轮机的开关装置的一个或多个开关。 开关装置包括开关设备电压变压器,开关设备电压互感器包括初级和次级绕组,初级绕组从电网或辅助电源接收电力,以及将次级绕组传递给风力涡轮机电气部件的电力。

    Method for avoiding voltage instability in an electrical grid of an offshore wind park
    100.
    发明授权
    Method for avoiding voltage instability in an electrical grid of an offshore wind park 有权
    避免海上风电场电网电压不稳定的方法

    公开(公告)号:US09124134B2

    公开(公告)日:2015-09-01

    申请号:US14375771

    申请日:2013-02-14

    摘要: Method for avoiding voltage instability in an electrical grid of an offshore wind park, the offshore wind park electrical grid being connected at a first end of a high voltage alternating current (HVAC) transmission and the main land electrical grid being connected at a second end of the HVAC transmission, each of the wind turbines being connected to the wind park electrical grid, the method comprises determining a main land phase angle at or near the second end of the HVAC transmission; measuring an individual wind turbine phase angle at one or more wind turbines; determining the difference between each of the measured individual wind turbine phase angles and the main land phase angle; and determining whether the difference between one of the measured individual wind turbine phase angle and the main land phase angle exceeds a threshold phase angle difference.

    摘要翻译: 一种用于避免海上风电场的电网不稳定的方法,所述海上风电场电网在高压交流(HVAC)传输的第一端连接,并且所述主接地电网在第二端 HVAC传输,每个风力涡轮机连接到风力发电场电网,所述方法包括确定HVAC变速器的第二端处或附近的主地面相位角; 测量一个或多个风力涡轮机上的单个风力涡轮机相位角; 确定每个测量的单个风力涡轮机相位角和主地面相位角之间的差; 并且确定所测量的各个风力涡轮机相位角中的一个与所述主平台相位角之间的差是否超过阈值相位角差。