附加阻尼控制下风电机组机网耦合载荷建模及分析  

MODELING AND ANALYSIS ON MACHINE-GRID COUPLING LOADS OF WTGS WITH ADDITIONAL DAMPING CONTROL

作　　者：杨超[1] 李东翰 胡姚刚 贾勇 李辉[2] 刘静 Yang Chao;Li Donghan;Hu Yaogang;Jia Yong;Li Hui;Liu Jing(Chongqing Engineering Research Center of Energy Internet,Chongqing University of Technology,Chongqing 400054,China;State Key Laboratory of Power Transmission Equipment&System Security and New Technology(Chongqing University),Chongqing 400044,China;CSIC Haizhuang Windpower Co.,Ltd.,Chongqing 401122,China)

机构地区：[1]重庆市能源互联网工程技术研究中心(重庆理工大学),重庆400054 [2]重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆400044 [3]中国船舶重工集团海装风电股份有限公司,重庆401122

出　　处：《太阳能学报》2024年第2期102-108,共7页Acta Energiae Solaris Sinica

基　　金：重庆市基础科学与前沿技术研究专项基金(cstc2020jcyj-msxmX0395);重庆市教委科学技术研究项目(KJQN201901104);国家自然科学基金(51675354)。

摘　　要：针对附加阻尼控制下风电机组机械载荷问题,开展风电机组机网耦合载荷建模及载荷特性分析研究。采用FAST与Matlab/Simulink软件联合方法,建立综合考虑机组机械特性和电气特性的并网风电机组机网耦合载荷模型。采用所建模型开展附加阻尼控制对机组机械载荷影响的仿真分析,并复现附加阻尼控制下风电机组机械系统与电力系统的机网共振现象。结果表明,所建模型能够表征附加阻尼控制下风电机组机械系统与电力系统的耦合互作用,系统低频振荡会导致机组关键结构出现明显振动载荷,且系统振荡频率与机组机械结构固有振动频率接近时两者共振会急剧加大机组振动载荷。In terms of mechanical loads of the wind turbine generator system(WTGS)with the additional damping control(ADC),modeling and analysis on mechanical loads are carried out for the WTGS considering machine-grid coupling.FAST associated with Matlab/Simulink is used to establish the mechanical-grid coupled model for the loads of the grid-connected WTGS,which takes into account both mechanical and electrical characteristics.Impacts of ADC on mechanical loads of the WTGS with ADC are simulated and investigated through the established model.And the resonance phenomenon between the WTGS mechanical system and the power system is recurred through the model.Results show that,the established model can effectively reflect the coupling interaction between the power system and the mechanical system in the WTGS under ADC,and the low-frequency oscillations of the power system lead to remarkable vibration loads in key WTGS structures,and when the natural vibration frequency of mechanical structures and the power system oscillation frequency approach to each other there is a sharp increase in vibration loads of a WTGS due to their resonance.

关 键 词：风力发电 风电机组 结构载荷 阻尼控制 机网耦合 

分 类 号：TK81[动力工程及工程热物理—流体机械及工程]