WIND TURBINE CONTROL USING CONSTRAINT SCHEDULING

    公开(公告)号:US20210207585A1

    公开(公告)日:2021-07-08

    申请号:US17142139

    申请日:2021-01-05

    Abstract: The invention provides a method for controlling a wind turbine, including predicting behaviour of one or more wind turbine components such as a wind turbine tower over a prediction horizon using a wind turbine model that describes dynamics of the one or more wind turbine components or states. The method includes determining behavioural constraints associated with operation of the wind turbine, wherein the behavioural constraints are based on operational parameters of the wind turbine such as operating conditions, e.g. wind speed. The method includes using the predicted behaviour of the one or more wind turbine components in a cost function, and optimising the cost function subject to the determined behavioural constraints to determine at least one control output, such as blade pitch control or generator speed control, for controlling operation of the wind turbine.

    FAST REACTING CONTROL SYSTEM FOR WIND TURBINE

    公开(公告)号:US20180283354A1

    公开(公告)日:2018-10-04

    申请号:US15759150

    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).

    WIND TURBINE CONTROL USING PREDICTED STEADY-STATE DEFLECTION

    公开(公告)号:US20220307472A1

    公开(公告)日:2022-09-29

    申请号:US17609677

    申请日:2020-05-05

    Abstract: Controlling a wind turbine including measuring a wind speed for a location upwind of a wind turbine. Using the measured wind speed, a changed steady-state deflection of a structure of the wind turbine is predicted. The predicted changed steady-state deflection corresponds to a time when wind from the location is incident on the wind turbine. Oscillations of the structure are damped relative to the changed steady-state deflection. By damping the oscillations relative to the changed steady-state deflection, movements of the structure may be minimized when there is no predicted change in steady-state deflection, while permitting more rapid movements during transitions from one steady-state deflection to the predicted steady-state deflection, allowing more of the available power to be captured by the wind turbine.

    METHOD OF CONTROLLING A WIND POWER PLANT

    公开(公告)号:US20220285945A1

    公开(公告)日:2022-09-08

    申请号:US17763132

    申请日:2020-08-26

    Abstract: A method of controlling a wind power plant including an energy storage device, the wind power plant being connected to a power grid and comprising one or more wind turbine generators that produce electrical power for delivery to the power grid, the method comprising: processing grid data related to the power grid to determine a probability forecast for a future state of the grid; and controlling charging and discharging of the energy storage device in accordance with the probability forecast.

    POWER BOOST OF A WIND TURBINE USING MODEL PREDICTIVE CONTROL

    公开(公告)号:US20180266392A1

    公开(公告)日:2018-09-20

    申请号:US15764454

    申请日:2016-10-04

    Abstract: The present disclosure relates to a control of a wind turbine in connection with power boosting or fast increase of active power production. A boost command is received (63) and based on the current operational state and the boost level a predicted control trajectory is calculated using a model predictive control (MPC) routine (64). The wind turbine is controlled using the calculated control trajectory during the power boost (65).

    CONTROLLING A WIND TURBINE USING CONTROL OUTPUTS AT CERTAIN TIME STAGES OVER A PREDICTION HORIZON

    公开(公告)号:US20200378359A1

    公开(公告)日:2020-12-03

    申请号:US16889013

    申请日:2020-06-01

    Abstract: The invention provides a method for controlling a wind turbine. The method predicts behaviour of the wind turbine components for the time stages over a prediction horizon using a wind turbine model describing dynamics of the wind turbine, where the time stages include a first set of time stages from an initial time stage and a second set of time stages subsequent to the first set. The method determines control outputs, e.g. individual blade pitch, for time stages based on the predicted behaviour. The method then transmits a control signal to implement only the control outputs for each of the second set of time stages so as to control the wind turbine. Advantageously, the invention reduces both average and peak computational loads relative to standard predictive control algorithms.

    CONTROL OF A WIND TURBINE TAKING FATIGUE MEASURE INTO ACCOUNT

    公开(公告)号:US20180142674A1

    公开(公告)日:2018-05-24

    申请号:US15574456

    申请日:2016-05-24

    Abstract: The present invention relates to control of wind turbines where a fatigue load measure is taken into account. Control of a wind turbine is described where a control trajectory is calculated based on a fatigue load measure, the fatigue load measure being determined from a predicted operational trajectory. In embodiments the predicted operational trajectories are calculated by using a model predictive control (MPC) routine, and the fatigue load measure includes a rainflow count algorithm.

    METHOD OF CONTROLLING A WIND POWER PLANT

    公开(公告)号:US20220393466A1

    公开(公告)日:2022-12-08

    申请号:US17763146

    申请日:2020-08-26

    Abstract: A method of controlling a wind power plant including an energy storage device, the wind power plant being connected to a power grid and comprising one or more wind turbine generators that produce electrical power for delivery to the power grid, the method comprising: processing input data related to one or more inputs to the wind power plant to determine a probability forecast for each input; and controlling charging and discharging of the energy storage device in accordance with each probability forecast and a prescribed probability of violating one or more grid requirements.

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