基于MTMD的漂浮式风力机侧向振动控制  

LATERAL VIBRATION CONTROL OF FLOATING WIND TURBINES BASED ON MTMD

作　　者：金鑫[1] 王宁[1] 周雷[1] Jin Xin;Wang Ning;Zhou Lei(College of Mechanical and Vehicle Engineering,Chongqing University,Chongqing 400044,China)

机构地区：[1]重庆大学机械与运载工程学院,重庆400044

出　　处：《太阳能学报》2021年第9期344-348,共5页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(51975066);重庆大学教学改革研究项目(2017Y30,2017Y32)。

摘　　要：风力机在前后方向具有较强的气动阻尼,因此塔筒前后振动和叶片拍打振动会受到一定程度的抑制,然而塔筒侧向受到的空气动力阻尼相对较小,这可能导致风电机组侧向振动较大。为了解决这一问题,设计一种多重调谐质量阻尼器(MTMD)系统,用于控制单柱型(Spar)海上漂浮式风力机的侧向结构振动,构建与MTMD系统耦合的风力机简化模型,并在此基础上对阻尼器参数进行优化,最后在风浪联合工况下进行仿真分析。结果表明,所提出的MTMD系统对浮式风力机的结构响应有很大的抑制作用。Considering the strong aerodynamic damping characteristics of wind turbines,the tower fore-aft vibration and blade flapwise vibration are generally restrained.However,the tower lateral vibration is subjected to negligible aerodynamic damping,which may lead to large amplitudes disabling the wind turbine system.To solve this problem,a multiple tuned mass dampers(MTMD)system is designed in this paper to control the lateral structural vibration of spar-type offshore floating wind turbines.A simplified model of wind turbine coupled with MTMD system is constructed,and the parameters of dampers are optimized.Finally,simulations are performed for a combined wind-wave load case.Simulations shown the considerable mitigation effects of the proposed MTMD system on structural responses of the floating wind turbine in the edgewise direction.

关 键 词：海上风电机组 结构动力学 振动控制 多重调谐质量阻尼器 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]