可再生能源2023，Vol.41Issue(12)：1619-1625,7.
多场耦合下风电机组偏航系统疲劳载荷分析
The analysis on fatigue load for wind turbine yaw system under multi field coupling
摘要
Abstract
A fatigue load analysis method for wind turbine yaw system under multi field coupling is proposed to address the issue of fatigue damage and reduced service life of wind turbine yaw system under long-term start stop cycle operation.Establish a dynamic model of the wind turbine yaw system,including a permanent magnet synchronous motor dynamic model,a transmission system dynamic model,a sensor model,and a random wind load model,and analyze the maximum transient impact and equivalent damage load on the system.Based on the continuous damage theory,the fatigue damage evolution equation is used to analyze the fatigue damage generated by the yaw system of wind turbines under load.According to the relevant parameters of the wind turbine yaw system,three test points are set up to analyze the load,plastic strain,and fatigue damage of different methods.The results show that the proposed method has high analytical accuracy and is consistent with the fatigue damage of the actual wind turbine yaw system,which can ensure the safety of the wind turbine yaw system operation.关键词
疲劳损伤/风电机组/偏航系统/连续损伤力学/多场耦合分析Key words
fatigue damage/wind turbines/yaw system/continuous damage mechanics/multi field coupling analysis分类
能源科技引用本文复制引用
于波,于景龙,闻增鑫,张秉龙,葛瑩..多场耦合下风电机组偏航系统疲劳载荷分析[J].可再生能源,2023,41(12):1619-1625,7.基金项目
中国华能集团公司科技项目(HNKJ22-HF81). （HNKJ22-HF81）
