Direct-drive wind turbines
    1.
    发明授权

    公开(公告)号:US09882443B2

    公开(公告)日:2018-01-30

    申请号:US14860613

    申请日:2015-09-21

    摘要: A direct-drive wind turbine comprises a wind turbine rotor and a generator mounted on a frame. The wind turbine rotor comprises a hub carrying blades and the generator comprises a generator stator comprising a track structure and a stator surface connected to the track structure, wherein the stator surface has coil windings, and carriages connected one after the other and adapted to run on the track structure, wherein the carriages carry an electrically magnetically active material facing the stator surface such that when the carriages run along the track structure a magnetic field is generated across an air gap provided between the carriages active materials and the stator coil windings, wherein one or more carriages are directly coupled to the wind turbine rotor by rigid connectors such that rotation of the wind turbine rotor causes displacement of the carriages along the track.

    Permanent magnet rotor
    3.
    发明授权

    公开(公告)号:US09742229B2

    公开(公告)日:2017-08-22

    申请号:US14411069

    申请日:2013-06-28

    摘要: A permanent magnet rotor comprises a rotor body configured for rotating around a central rotational axis and further comprises principal permanent magnets that are substantially rectangular in axial cross-section and are embedded in the rotor body and are arranged inclined with respect to the radial plane extending through the center of the principal magnets and such as to have a circumferential magnetic orientation. The principal magnets have an inner end and an outer end, the outer end being arranged in the proximity of the air gap of the outer circumference of the rotor, and outer bridges of magnetically conductive material being formed between the outer ends of the principal magnets and the outer circumference of the rotor. Auxiliary magnets are arranged near the outer ends of the principal magnets to magnetically saturate the outer bridges.

    Method for dampening oscillations in a wind turbine

    公开(公告)号:US09719493B2

    公开(公告)日:2017-08-01

    申请号:US14373022

    申请日:2013-01-28

    发明人: Isaac Pineda Amo

    IPC分类号: F03D7/04 F03D7/02

    摘要: A method is provided for dampening oscillations in a wind turbine, the wind turbine having a tower 1, a rotor 3 arranged on the tower 1 such as to be able to rotate about an X axis, and a plurality of blades 4 with adjustable pitch mounted on the rotor. The method includes monitoring the fore-aft oscillation of the tower 1 in the direction of the X axis, at the 2nd or a higher bending mode frequency; determining a compensating torque to be applied by the rotor 3 to the tower 1 of the wind turbine about a Y axis, which is horizontal and at right angles to the X axis, for at least partly dampening the oscillation at the 2nd or higher bending mode frequency; determining for each rotor blade 4 of the wind turbine an adjustment of the pitch angle suitable to generate the compensating torque about the Y axis; and adjusting the pitch angle β1, β2, β3 of at least one of the individual blades 4 to generate at least part of the compensating torque.

    Generator
    5.
    发明授权

    公开(公告)号:US09705371B2

    公开(公告)日:2017-07-11

    申请号:US13763474

    申请日:2013-02-08

    IPC分类号: H02K3/28 H02K3/18

    CPC分类号: H02K3/28 H02K3/18 Y02E10/725

    摘要: The present invention provides a generator comprising winding arrangements, each winding arrangement comprising at least an inner coil and an outer coil constituting a concentric structure of coils. The inner coil is constituted by an inner conductor and the outer coil is constituted by an outer conductor, the inner and outer conductors being connected in series. The inner conductor, which is wound around a tooth, has a smaller electrical resistance per unit length than the outer conductor.

    Rotating electric machine, in particular double-fed asynchronous machine with a power range of between 20 MVA and 500 MVA
    7.
    发明授权
    Rotating electric machine, in particular double-fed asynchronous machine with a power range of between 20 MVA and 500 MVA 有权
    旋转电机,特别是双馈异步电机,功率范围在20 MVA和500 MVA之间

    公开(公告)号:US09525328B2

    公开(公告)日:2016-12-20

    申请号:US14306746

    申请日:2014-06-17

    摘要: The invention proceeds from a rotating electric machine, in particular a double-fed induction machine in the power range between 20 MVA and 500 MVA, which comprises a rotor that rotates about a machine axis, is concentrically surrounded by a stator, and has a rotor plate body and a shaft, which rotor plate body bears a rotor winding that is arranged further outwards and is connected by means of connectors to slip rings that are arranged further inwards at the end of the shaft. A flexible and secure connection is achieved in that the connectors have mechanical connectors that run at right angles to the shaft to absorb forces arising owing to centrifugal acceleration, which mechanical connectors are connected on one side to a rotor winding head of the rotor winding and are supported on the other side on an auxiliary rim on the rotor plate body.

    摘要翻译: 本发明从旋转电机,特别是在20MVA至500MVA之间的功率范围内的双馈感应电机进行,其包括围绕机器轴旋转的转子,被定子同心地围绕,并具有转子 板体和轴,该转子板体承载转子绕组,该转子绕组进一步向外设置并且通过连接器连接到在轴端部进一步向内布置的滑环。 实现了灵活和牢固的连接,其中连接器具有与轴成直角运行的机械连接器,以吸收由于离心加速而产生的力,该机械连接器在一侧连接到转子绕组的转子绕组头,并且是 另一侧支撑在转子板体上的辅助轮辋上。

    Winding for a rotating electric machine and method for manufacturing same
    10.
    发明授权
    Winding for a rotating electric machine and method for manufacturing same 有权
    旋转电机的绕线及其制造方法

    公开(公告)号:US09331538B2

    公开(公告)日:2016-05-03

    申请号:US13622502

    申请日:2012-09-19

    IPC分类号: H02K11/00 H02K3/38

    CPC分类号: H02K3/38 Y10T29/49009

    摘要: A winding for a rotating electric machine includes conductive bars having straight parts and end windings and terminal portions of the end windings that are connected together. A protective cap is disposed on at least a portion of each respective connected end winding terminal portion. An electrical insulating material is disposed between each end winding terminal portion and respective protective cap and a seal is inside each protective cap.

    摘要翻译: 用于旋转电机的绕组包括具有连接在一起的直线部分和端部绕组和端部绕组的端子部分的导电棒。 保护帽设置在每个相应的连接端卷绕端子部分的至少一部分上。 电绝缘材料设置在每个端部绕组端子部分和相应的保护盖之间,密封件位于每个保护盖内。