Over-rating control in wind turbines and wind power plants
    2.
    发明授权
    Over-rating control in wind turbines and wind power plants 有权
    风力发电机组和风力发电厂的过度评估控制

    公开(公告)号:US09018782B2

    公开(公告)日:2015-04-28

    申请号:US13876068

    申请日:2011-09-30

    Abstract: Wind turbines of a wind power plant may be selectively over-rated by measuring the difference between the nominal and actual power plant outputs and deriving an over-rating request signal based on that difference which is sent to each turbine. The same value may be sent to each turbine. Alternatively, each turbine may be given its own over-rating amount based on an optimization of the turbine. Over-rating may also be used when external economic factors such as energy costs are sufficiently high to out-weigh any potential harmful effect of over-rating. The fatigue lifetime of turbines and their critical components may also be taken into account when deciding whether and to what extent to implement an over-rating command.

    Abstract translation: 风力发电厂的风力涡轮机可以通过测量标称电力和实际发电厂输出之间的差异来选择性地过度评估,并且基于发送到每个涡轮机的差异导出过高额定值请求信号。 相同的值可以发送到每个涡轮机。 或者,基于涡轮机的优化,每个涡轮机可以被给予其自己的超额定量。 当外部经济因素如能源成本足够高以超出任何潜在的超额评估有害影响时,也可能会使用过高评级。 在决定是否以及在多大程度上实施过度评估命令时,也可以考虑涡轮机及其关键部件的疲劳寿命。

    Method and apparatus for protecting wind turbines from fatigue damage
    3.
    发明授权
    Method and apparatus for protecting wind turbines from fatigue damage 有权
    保护风力涡轮机免受疲劳损伤的方法和装置

    公开(公告)号:US08928164B2

    公开(公告)日:2015-01-06

    申请号:US13518776

    申请日:2010-12-22

    Abstract: A wind turbine has a Lidar device to sense wind conditions upstream of the wind turbine including wind speed, direction and turbulence. Signals from the Lidar are processed to detect an event which could give rise to low cycle fatigue loading on one or more components of the wind turbine. On detection the system controller takes the necessary evasive action depending on the nature and severity of the extreme condition detected. This may include a significant reduction in power generated through reduction in rotor speed or torque, complete shutdown of the generator and yawing of the nacelle and rotor in response to a change in wind direction.

    Abstract translation: 风力涡轮机具有用于感测风力涡轮机上游的风况的激光雷达装置,包括风速,方向和湍流。 来自激光雷达的信号被处理以检测可能导致风力涡轮机的一个或多个部件上的低循环疲劳载荷的事件。 在检测时,系统控制器根据检测到的极端条件的性质和严重程度采取必要的回避措施。 这可能包括通过降低转子速度或转矩而产生的功率的显着降低,发电机的完全关闭和响应于风向变化的机舱和转子的偏转。

    Control system
    5.
    发明申请
    Control system 失效
    控制系统

    公开(公告)号:US20050131620A1

    公开(公告)日:2005-06-16

    申请号:US10502904

    申请日:2003-01-31

    Applicant: Robert Bowyer

    Inventor: Robert Bowyer

    Abstract: There is described a method for controlling a system, for example a Diesel engine, that is subject to transient changes of target outputs. The target outputs specify outputs required from the system. “Steady state” information is used to give optimum inputs for the system when the target outputs are substantially constant. A model of the system is used to predict the outputs of the system in response to candidate new values for the inputs of the system. The method combines the steady state information with the predicted response of the system to determine inputs to the system which will cause the system outputs to match the target outputs as closely as possible. For each candidate (in one embodiment), the method calculates the difference between the steady state inputs and a candidate, and the difference between the target outputs and the predicted outputs that would result from the adoption of that candidate, to determine an optimum candidate which is then used to update the inputs to the system.

    Abstract translation: 描述了用于控制受目标输出的瞬时变化的系统(例如柴油发动机)的方法。 目标输出指定系统所需的输出。 当目标输出基本恒定时,“稳态”信息用于为系统提供最佳输入。 该系统的模型用于响应于系统输入的候选新值来预测系统的输出。 该方法将稳态信息与系统的预测响应相结合,以确定系统的输入,这将使系统输出尽可能接近目标输出。 对于每个候选者(在一个实施例中),该方法计算稳定状态输入与候选者之间的差异,以及目标输出与通过该候选者所产生的预测输出之间的差异,以确定最佳候选 然后用于更新系统的输入。

    Wind turbine having a control method and controller for performing predictive control of a wind turbine generator
    6.
    发明授权
    Wind turbine having a control method and controller for performing predictive control of a wind turbine generator 有权
    具有用于执行风力涡轮发电机的预测控制的控制方法和控制器的风力涡轮机

    公开(公告)号:US09217416B2

    公开(公告)日:2015-12-22

    申请号:US13517966

    申请日:2010-05-31

    Abstract: The application describes a wind turbine having a control method and controller for performing predictive control of a wind turbine generator. Based on the measured instantaneous wind speed, it is known to provide control signals to a wind turbine in order to control the pitch of the wind turbine rotor blades and the speed of the generator. However, it is difficult using instantaneous wind speed measurements to achieve smooth control, due to finite response speeds of the associated electro-mechanical systems, as well as the constantly changing control system inputs. The predictive control system described in the application assumes a model of generator speed based on the values of the incident wind speed v(t) and the values of a control signal u(t) output to the wind turbine in a feed forward loop. Here, the control signal can be for one or more of controlling either the power setting of the generator, or the pitch angle of the rotor blades. The predictive controller uses a rolling time series of values for v(t) and u(t) and based on a predicted response of the generator speed w(t) optimizes the time series control signal u(t). The predicted response of the generator speed w(t) is based on model, that can be refined in real time as the wind turbine operates.

    Abstract translation: 本申请描述了具有用于执行风力涡轮发电机的预测控制的控制方法和控制器的风力涡轮机。 基于所测量的瞬时风速,已知向风力涡轮机提供控制信号,以便控制风力涡轮机转子叶片的桨距和发电机的速度。 然而,由于相关的机电系统的有限响应速度以及不断变化的控制系统输入,使用瞬时风速测量来实现平滑的控制是困难的。 该应用中描述的预测控制系统基于入射风速v(t)的值和在前馈回路中输出到风力涡轮机的控制信号u(t)的值来假定发电机速度的模型。 这里,控制信号可以用于控制发电机的功率设定或转子叶片的俯仰角的一个或多个。 预测控制器使用v(t)和u(t)的滚动时间序列值,并且基于发电机速度w(t)的预测响应优化时间序列控制信号u(t)。 发电机转速w(t)的预测响应是基于模型,可随着风力发电机的运行而实时改进。

    REMOTE SENSING SYSTEM FOR WIND TURBINES
    8.
    发明申请
    REMOTE SENSING SYSTEM FOR WIND TURBINES 有权
    用于风力涡轮机的远程感测系统

    公开(公告)号:US20140217729A1

    公开(公告)日:2014-08-07

    申请号:US14129592

    申请日:2012-06-29

    Abstract: Embodiments of the invention generally relate to using remote sensing equipment such as a Light Detection and Ranging (LIDAR) device to detect wind characteristics for use by wind turbines of a wind park. A wind park controller may received raw wind data from the remote sensing device and determine one or more turbines that can use the raw wind data. The raw wind data may be converted to customized data for each of the one or more wind turbines. Upon being provided the customized wind data, the one or more wind turbines may adjust one or more operational characteristics to improve power production or avoid damage to turbine components.

    Abstract translation: 本发明的实施例一般涉及使用诸如光检测和测距(LIDAR)装置的遥感设备来检测风力特征以供风力发电场的风力涡轮机使用。 风力发电场控制器可以从遥感装置接收原始风数据,并且确定可以使用原始风数据的一个或多个涡轮机。 原始风数据可以被转换为一个或多个风力涡轮机中的每一个的定制数据。 在提供定制的风力数据时,一个或多个风力涡轮机可以调整一个或多个操作特性以改善功率生产或避免损坏涡轮机部件。

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