摘要
在“碳达峰、碳中和”的目标驱动下,全球风能发展呈现快速增长趋势。随着机组度电成本的不断降低,风机大型化成为行业发展的必然趋势,风电叶片的大型化使其质量和载荷呈几何级数增加,对叶根与风机的连接能力提出了更高的要求。本文讨论了风电叶片叶根连接结构的发展现状与技术趋势,系统分析了预埋叶根连接结构在材料、设计、制造与测试时的问题,通过剖析叶片长度、载荷和质量的变化及耦合关系,阐述了叶根连接面临的挑战。从材料设计、结构设计、生产工艺、校核分析、测试验证多个角度详细阐述了叶根连接技术的发展现状,结合风电叶片的整体发展情况,展望了未来叶根连接技术的发展趋势,为大型叶片叶根连接技术的研究提供了重要参考。
Driven by the global goals of"Carbon Peak and Carbon Neutrality",the development of wind energy is experiencing rapid growth worldwide.As the levelized cost of energy continues to decrease,the trend toward larger wind turbines has become a significant direction for industry development.The increasing size of wind turbine blades leads to an exponential increase in their weight and loads,imposing higher demands on the connection performance between blade roots and turbines.This paper discusses the current state and technological trends of root connection systems in wind turbine blade.It systematically analyzes the challenges of embedded blade root connections throughout design,manufacturing,and operation phase.This study analyzes the variations in blade length,load,and weight,as well as their interdependencies,to identify the challenges encountered by root-to-hub connections.It presents a comprehensive analysis of the current state of blade root connection technology from multiple perspectives,including material design,structural design,manufacturing processes,verification analysis and testing validation.Considering the overall development situation of wind turbine blades,this study also projects future trends,offering valuable insights for research on large blade root connection technologies.
作者
李成良
张颜明
杨斌
张崇碧
张振
李占营
倪爱清
LI Chengliang;ZHANG Yanming;YANG Bin;ZHANG Chongbi;ZHANG Zhen;LI Zhanying;NI Aiqing(Sinoma Wind Power Blade Co.,Ltd.,Beijing 100083,China;School of Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070,China;State Key Laboratory of Advanced Technology for Material Synthesis and Processing,Wuhan University of Technology,Wuhan 430070,China)
出处
《复合材料学报》
北大核心
2026年第1期62-81,共20页
Acta Materiae Compositae Sinica
基金
国家重点研发计划(2022YFE0207000)
江苏省碳达峰碳中和科技创新专项资金(BE2022008)。
关键词
风电叶片
叶根连接
钻孔连接
预埋连接
结构设计
wind turbine blade
blade root connection
T bolt connection
root insert connection
structural design
