FAST REACTING CONTROL SYSTEM FOR WIND TURBINE

    公开(公告)号:EP3356671A1

    公开(公告)日:2018-08-08

    申请号:EP16774620.5

    申请日:2016-09-27

    Abstract: The present disclosure relates to a control system for a wind turbine comprising more controllers and where at least some of the controllers operate at different sample frequencies. The control system comprises at least two controller units, a first controller (10) for determining an operational value (OV) of a sub-system and a second controller (20) for the sub-system. The second controller operates at a higher sample frequency than the first controller. It is disclosed that a faster reaction to a received demand value (V1), received for controlling the sub-system, can be obtained by setting the operational value (OV) of the sub-system as the sum of an internal operational value (V5) and a difference value (V4).

    PARTIAL-LOAD DE-RATING FOR WIND TURBINE CONTROL
    28.
    发明授权
    PARTIAL-LOAD DE-RATING FOR WIND TURBINE CONTROL 有权
    部分负荷受到束缚风电机组控制

    公开(公告)号:EP2885534B1

    公开(公告)日:2017-03-22

    申请号:EP12748156.2

    申请日:2012-08-14

    Abstract: Methods, controllers and computer program products for controlling a wind turbine. Under de-rated operating conditions in which the power requested from a wind turbine is less than the available power, a controller adjusts blade pitch of the wind turbine to reduce the rotor power coefficient. The captured wind power is thereby reduced to be approximately equal to the requested electrical power, which is less than either the available power or the rated power of the wind turbine generator. This reduction in captured power provides the controller with an additional degree of freedom that allows the controller to increase the electrical power output of the wind turbine in response to wind fluctuations without damaging the wind turbine. By allowing increases in power under de-rated conditions, the controller may reduce the amount of pitching necessary to prevent the turbine from exceeding its rated power output level.

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