CONTROL SYSTEM AND METHOD FOR WIND TURBINE HAVING MULTIPLE ROTORS

    公开(公告)号:EP3377757A1

    公开(公告)日:2018-09-26

    申请号:EP16801957.8

    申请日:2016-11-17

    Abstract: A wind turbine system comprising a plurality of wind turbine modules mounted to a support structure, wherein each of the wind turbine modules comprises a rotor including one or more variable-pitch blades, each defining a respective blade pitch angle and being controlled by a pitch control system, and a control system operable to control the blade pitch angles of the plurality of blades of the wind turbine modules. The control system is configured to identify the presence of a predetermined stop condition and, in dependence thereon, is operable to control the blade pitch angles of the respective blades to predetermined stop positions that reduce oscillation of the support structure. Aspects of the invention also relate to a method of controlling a wind turbine system, to a controller for implementing the method, and to a computer program product.

    ELECTRICAL SUPPLY INTO WIND TURBINE HUB
    94.
    发明公开
    ELECTRICAL SUPPLY INTO WIND TURBINE HUB 有权
    。UNG。。。。。。。。。。。。。。。。。

    公开(公告)号:EP2872774A1

    公开(公告)日:2015-05-20

    申请号:EP13731672.5

    申请日:2013-06-20

    Abstract: The invention provides a wind turbine including a nacelle, a rotor having at least one blade attached to a hub, and an electrical supply structure for supplying electrical power from the nacelle to the rotor. The rotor is rotatably connected to the nacelle about an axis of rotation. The supply structure comprises a switch which has a connected mode in which the nacelle and the rotor are electrically connected, and a disconnected mode in which the nacelle and the rotor are electrically disconnected. Furthermore, the switch is adapted to change from the disconnected mode to the connected mode when the rotor does not rotate.

    Abstract translation: 本发明提供了一种风力涡轮机,其包括机舱,转子,其包括附接到轮毂的至少一个叶片,以及用于将电力从机舱提供给转子的供电结构。 转子围绕旋转轴线可旋转地连接到机舱。 供电结构包括具有电气连接机舱和转子的连接方式的开关,以及机舱和转子电断开的断开模式。 此外,当转子不旋转时,开关适于从断开模式切换到连接模式。

    A HYDRAULIC PITCH SYSTEM FOR A WIND TURBINE
    95.
    发明公开
    A HYDRAULIC PITCH SYSTEM FOR A WIND TURBINE 有权
    水力发电机组

    公开(公告)号:EP2786015A1

    公开(公告)日:2014-10-08

    申请号:EP12794855.2

    申请日:2012-11-28

    Abstract: The present invention relates to a hydraulic pitch system for pitching a blade of a wind turbine having a hub by means of a hydraulic fluid. The system comprises at least one hydraulic cylinder for adjusting a pitch angle of the blade, the hydraulic cylinder comprising a pitch piston movable in the hydraulic cylinder, and a first port and a second port arranged on each side of the pitch piston, and an accumulator hydraulically connected to the cylinder. The system further comprises a pitch safety system adapted to maintain the blade in a predetermined pitch angle when a person is entering the hub of the wind turbine for service and/or maintenance, the pitch safety system comprising a first valve which by activation releases a pressure in the hydraulic pitch system by draining off the accumulator for the hydraulic fluid until the pressure has reached a predetermined pressure level.

    Abstract translation: 本发明涉及一种用于通过液压流体对具有轮毂的风力涡轮机叶片进行俯仰的液压俯仰系统。 该系统包括至少一个液压缸,用于调节叶片的俯仰角,液压缸包括可在液压缸中移动的俯仰活塞,以及布置在俯仰活塞两侧的第一端口和第二端口,以及蓄能器 液压连接到气缸。 该系统还包括桨距安全系统,其适于在人员进入风力涡轮机的轮毂以维持和/或维护时将叶片保持在预定的俯仰角,桨距安全系统包括通过激活释放压力的第一阀 在液压系统中通过排出用于液压流体的蓄能器,直到压力达到预定压力水平。

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