漂浮式风力机混合振动控制  

HYBRID VIBRATION CONTROL OF FLOATING WIND TURBINES

作　　者：金鑫[1] 林益帆 谢双义[1] 何娇 王宁[1] Jin Xin;Lin Yifan;Xie Shuangyi;He Jiao;Wang Ning(College of Mechanical Engineering,Chongqing University,Chongqing 400044,China)

机构地区：[1]重庆大学机械工程学院,重庆400044

出　　处：《太阳能学报》2020年第11期261-266,共6页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(51975066)。

摘　　要：针对漂浮式海上风力发电机结构振动过大的问题,以5 MW半潜式海上风力发电机为研究对象,搭建整机的多体动力学模型,并基于最小二乘法的系统辨识原理对风力机系统进行辨识,在此基础上设计基于H∞成型控制器的混合质量阻尼器(HMD)控制系统,最后对风力机模型在5种工况下进行仿真,仿真结果表明:相比于被动控制,该文所设计的混合控制系统对各评价指标的抑制效果更明显,同时,在H∞回路控制器的设计过程中,增益系数和反馈系数的选择对控制器鲁棒稳定裕度、控制力、评价指标的抑制率都会产生影响,因此在满足控制器设计要求的前提下,应对这些参数进行合理选择。This paper focuses on the structure vibration of floating offshore wind turbine,and the 5 MW barge type offshore wind turbine is the research object.The wind turbine system is identificated according to the principle of system identification based on least square method,and the hybrid mass damper(HMD)control system is designed based on H∞controller.At last,the wind turbine model is simulated under five conditions.The simulation results show that the HMD inhibitory effect to evaluation indexes is more obvious compared to the passive control.Meanwhile,the gain coefficient and the feedback coefficient on the controller robust stability,the control force,and the inhibitory effect to evaluation indexes will have an impact.Therefore,in order to meet the design requirements of controller,these parameters should be selected reasonably.

关 键 词：漂浮式风力机 振动控制 动力学模型 成型控制器 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]