Active structural control of a floating wind turbine with a stroke-limited hybrid mass damper
Active structural control of a floating wind turbine with a stroke-limited hybrid mass damper
复制标题
带有行程限制混合质量阻尼器的浮动风力发电机的主动结构控制
DOI：
10.1016/j.jsv.2017.08.050
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发表时间：
2017-12
影响因子：
4.7
通讯作者：
Erming He
中科院分区：
文献类型：
--
作者：
Yaqi Hu;Erming He
浮式风力发电机组由于其浮式基础的额外自由度，比固定底部风力发电机组承受更大的结构荷载。采用结构主动控制方法改善浮式风力发电机组的结构响应是一种很有前途的方法。本文研究了一种驳船式浮式风力机的振动主动控制策略，即在风力机机舱内设置限制行程的混合质量阻尼器（HMD）。首先，基于欧拉-拉格朗日方程，提出了考虑HMD与行程限制器间隙的浮式风力机接触非线性建模方法，建立了整个系统的主动控制模型；对主动控制模型的结构参数进行了验证，并提出了识别风浪扰动的等效荷载系数法。然后，设计了一种状态反馈线性二次型调节器（LQR）控制器来降低风力机的振动和负荷，并结合两种优化方法对权重系数进行了优化，同时考虑了HMD行程和主动控制功耗作为约束。最后，对所设计的控制器进行了五种典型风浪条件下的高保真仿真。结果表明，主动HMD控制策略是可以实现的，在所设计的控制器可以在行程限制和功耗约束下进一步降低风力机的振动和负载。在实际海上浮式风电场中，TMD抑制效果的“V”型分布与Weibull分布不一致，主动HMD控制可以克服被动TMD的这一缺点。
Floating wind turbines are subjected to more severe structural loads than fixed-bottom wind turbines due to additional degrees of freedom (DOFs) of their floating foundations. It's a promising way of using active structural control method to improve the structural responses of floating wind turbines. This paper investigates an active vibration control strategy for a barge-type floating wind turbine by setting a stroke-limited hybrid mass damper (HMD) in the turbine's nacelle. Firstly, a contact nonlinear modeling method for the floating wind turbine with clearance between the HMD and the stroke limiters is presented based on Euler-Lagrange's equations and an active control model of the whole system is established. The structural parameters are validated for the active control model and an equivalent load coefficient method is presented for identifying the wind and wave disturbances. Then, a state-feedback linear quadratic regulator (LQR) controller is designed to reduce vibration and loads of the wind turbine, and two optimization methods are combined to optimize the weighting coefficients when considering the stroke of the HMD and the active control power consumption as constraints. Finally, the designed controllers are implemented in high fidelity simulations under five typical wind and wave conditions. The results show that active HMD control strategy is shown to be achievable and the designed controllers could further reduce more vibration and loads of the wind turbine under the constraints of stroke limitation and power consumption. “V”-shaped distribution of the TMD suppression effect is inconsistent with the Weibull distribution in practical offshore floating wind farms, and the active HMD control could overcome this shortcoming of the passive TMD.
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影响因子：
3.2
作者：
S. Christiansen;T. Bak;T. Knudsen
通讯作者：
S. Christiansen;T. Bak;T. Knudsen
DOI：
10.2514/6.2012-376
发表时间：
2012-01
期刊：
--
影响因子：
--
作者：
G. Stewart;M. Lackner
通讯作者：
G. Stewart;M. Lackner
影响因子：
5.5
作者：
G. Stewart;M. Lackner
通讯作者：
G. Stewart;M. Lackner
影响因子：
--
作者：
N. Luo;L. Pacheco;Y. Vidal;Hui Li
通讯作者：
N. Luo;L. Pacheco;Y. Vidal;Hui Li
影响因子：
3.5
作者：
Dinh Van-Nguyen;B. Basu;Satish Nagarajaiah
通讯作者：
Dinh Van-Nguyen;B. Basu;Satish Nagarajaiah