基于流固耦合方法的漂浮塔柱式风力电站减振器设计  

Damper design of the floating tower wind turbine based on fluid-solid coupling method

作　　者：郭涛 朱磊 伍立说 兰剑 GUO Tao, ZHU Lei, WU Li-shuo, LAN Jian(CCCC National Engineering Research Center of Dredging Technology and Equipment Co., Ltd., Shanghai 201208, China)

机构地区：[1]中交疏浚技术装备国家工程研究中心有限公司,上海201208

出　　处：《中国港湾建设》2018年第4期47-52,共6页China Harbour Engineering

摘　　要：假设漂浮式风力发电站Hywind用于我国海域内,对其在涌浪、浮力及内部减振器共同作用下的扭转响应进行了理论分析。针对电站塔柱的具体结构和涌浪形式,按调频减振的原理设计了三款减振器。经过模型简化后,使用分离求解双向耦合的数值模拟方法对减振器抑制Hywind电站塔柱在涌浪作用下发生的周期性受迫扭转振动的特性进行求解。数值结果用于指导减振器的参数优化,优化后的三种减振器的抑振力幅值接近了理论设计值,其中联合减振器结合了其余两者的优势,在相同的空间中安装1.82%的减振质量可以抑制17%的扭振幅度,具有进一步研究和推广价值。Assuming a Hywind offshore floating wind turbine station used in China seas, we theoretically analyzed its torsional response under surge impact, water buoyancy, and damper suppression. Under restrictions of the station structure and the surge form, we designed three types of damper with the mechanism of tuning damping. After the simplified model, we used a partitioned solving and two-way coupling method to simulate the forced periodic torsional vibration of the Hywind station tower, which is interacted with surge impact. The numerical results are used for directing optimization, and the suppressing force amplitudes of the optimized dampers are closed to the theoretical values. The combined damper combines the advantages of the other two dampers; it depresses torsional amplitude of the turbine tower by 17% with 1.82% damping mass in the same space. It has further research and promotion value.

关 键 词：调频减振器 振动抑制 流固耦合 数值模拟 

分 类 号：TM614[电气工程—电力系统及自动化]