抑制海上浮式风力机振动的TMD限位策略研究

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摘要调谐质量阻尼器（TMD）能有效抑制海上浮式风力机的振动响应。风浪作用下，TMD将产生较大的振幅，和风机结构发生碰撞，严重影响风机结构安全，故必须对TMD进行限位设计。针对此问题，在Barge式风力机机舱中配置TMD，提出了3种TMD限位策略：阻尼限位策略、刚度限位策略及联合限位策略。采用拉格朗日方程，建立TMD行程受限的海上浮式风力机3自由度动力学模型，研究了不同限位策略下TMD的抑振效果。结果表明：采用联合限位策略，可以避免单一限位策略的缺陷，此时，TMD最大行程为7.85m，对塔顶纵向位移和平台纵摇角标准差的抑制率分别为40.01%和61.78%。

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	杨佳佳
	贺尔铭
	姚文旭
	熊波

关键词 ：海上浮式风力机, TMD, 拉格朗日方程, 振动模型, 振动控制, 限位策略

Abstract：The tuned mass damper (TMD) could effectively reduce the vibration responses of floating offshore wind turbines. In wind-wave loads, the TMD would appear a large amplitude and collide with wind turbines, which perhaps affect the safety of the wind turbine structure. Therefore, a TMD limiter should be designed to solve these problems. A TMD was installed in the nacelle of the barge floating wind turbine, and three kinds of TMD limited position strategies, which are the damping limited position, stiffness limited position and joint limited position, were presented. Considering the TMD stroke constraint, a three-degree-of-freedom coupled model of the wind turbine and TMD was established using the Lagrange’s equations. Subsequently, the vibration suppression effects of the nacelle TMD were studied in different limited position strategies. The results show that the joint limited position strategy could avoid the defects of the other strategies, the maximum TMD stroke is 7.85m; the suppression rates of the standard deviation for the tower top longitudinal displacement and platform pitch angle are 40.01% and 61.78%, respectively.

Key words： floating offshore wind turbines TMD Lagrange’s equations dynamic model vibration control limited position strategy

收稿日期: 2019-05-08 出版日期: 2020-07-28

引用本文:

杨佳佳，贺尔铭，姚文旭，熊波. 抑制海上浮式风力机振动的TMD限位策略研究[J]. 振动与冲击, 2020, 39(15): 18-24.
YANG Jiajia, HE Erming, YAO Wenxu, XIONG Bo. TMD limited position strategy for vibration suppression of floating offshore wind turbines. JOURNAL OF VIBRATION AND SHOCK, 2020, 39(15): 18-24.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2020/V39/I15/18

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