Individual pitch control for wind turbines

    公开(公告)号:US11519386B2

    公开(公告)日:2022-12-06

    申请号:US16647267

    申请日:2018-09-11

    Abstract: A method of controlling pitch of individual blades in a wind turbine is described, together with a suitable controller. Wind speed is determined as a function of azimuthal angle. Wind speed is then predicted for individual blades over a prediction horizon using this determination of wind speed as a function of azimuthal angle. The predicted wind speed for each individual blade is used in a performance function, which is optimized to control individual blade pitches.

    Model predictive control in local systems

    公开(公告)号:US11293404B2

    公开(公告)日:2022-04-05

    申请号:US16770869

    申请日:2018-12-03

    Abstract: A main computing system maintains and optimizes a predictive control model for an energy system, wherein the main computing system receives state information for the energy system, optimizes the predictive control model, and generates control rules for control of the energy system. The one or more local computing systems, each have a local memory for storing control rules for controlling the associated local state. The main computing system receives local state information and updates control rules, wherein the updated control rules comprise a subset of the control rules generated by the main computing system selected to be appropriate to the local state information received at the main computing system.

    CONTROLLING NOISE EMISSIONS FROM INDIVIDUAL BLADES OF A WIND TURBINE

    公开(公告)号:US20220243700A1

    公开(公告)日:2022-08-04

    申请号:US17618555

    申请日:2020-06-17

    Abstract: The present invention provides a method and controller for controlling noise emissions from individual blades (18) of a wind turbine (10), the method (60) comprising defining (720) a wind turbine model (321) describing dynamics of the wind turbine (10), the wind turbine model (321) including a description of intensity and direction of noise emissions from each individual blade (18) as a function of azimuthal angle (312); and applying (730) a model-based control algorithm (32) using the wind turbine model (321) to determine at least one control output (331), and using (740) the at least one control output (331) to control noise emissions from each individual blade (18).

    Determining icing condition using mechanical wind sensor

    公开(公告)号:US11384738B2

    公开(公告)日:2022-07-12

    申请号:US16957096

    申请日:2018-12-11

    Abstract: Embodiments herein describe a method and associated controller for a wind turbine. The method comprises determining one or more characteristics of a sensor signal received from a mechanical sensor of the wind turbine; determining, based on the one or more characteristics of the sensor signal, an icing condition of the wind turbine; and controlling operation of one or more wind turbine systems based on the determined icing condition.

    Multi-rotor turbine arranged for coordinated rotational speeds

    公开(公告)号:US10690116B2

    公开(公告)日:2020-06-23

    申请号:US15775449

    申请日:2016-11-18

    Abstract: A wind turbine system is described comprising a plurality of wind turbine modules, each including a rotor, mounted to a support structure including a tower. In use, each rotor has an associated rotating unbalance that defines an unbalance vector. The wind turbine system includes control means configured to coordinate the rotational speeds of the plurality of rotors to attenuate oscillations of the support structure caused by the rotating unbalance of the rotors. Also described is a method of controlling such a wind turbine system. The method comprises coordinating the rotational speeds of the plurality of rotors to attenuate oscillations of the support structure caused by the rotating unbalance of the rotors.

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