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    • 9. 发明授权
    • Wind blade assembly and method for damping load or strain
    • 风叶组件及阻尼载荷或应变的方法
    • US07360996B2
    • 2008-04-22
    • US11295467
    • 2005-12-07
    • Howard D. Driver
    • Howard D. Driver
    • F03D9/02
    • F03D1/0658F03D7/02F05B2220/709F05B2260/75F05B2260/96Y02E10/721Y02E10/723Y10S416/50
    • The transducers are incorporated in or laminated to wind blades and electrically connected to a self-powered electrical circuit. The transducers in combination with the self-powered electrical circuit improve the wind blades' response to changing wind conditions by reducing loads, at least until the turbines pitch axis system can alter the lie of the blades. Thus, when there is a change in wind conditions, the resultant twisting or bending of the wind blade during the impact of the wind (gust) on the wind blade is used to extract energy from the transducers. This energy is then transferred to the electrical circuit which in turn sends a signal back to the transducers to actuate them so as to resist the imposed load.
    • 传感器并入或层叠到风叶片上并电连接到自供电电路。 传感器与自供电电路相结合,通过减少负载来改善风叶对变化的风况的响应,至少直到涡轮机俯仰轴系可以改变叶片的位置。 因此,当风力条件发生变化时,在风力冲击下(风阵风)在风力叶片上的风叶的扭转或弯曲被用于从换能器中提取能量。 然后将该能量传送到电路,该电路又将信号发送回换能器以致动它们以抵抗所施加的负载。