风电机组永磁发电机温度场疲劳仿真研究  

Simulation analysis on the temperature fatigue of permanent magnet generator for wind turbine

作　　者：晁贯良 Chao Guanliang(Taizhong Group(Shanghai)Equipment Technology Co.,Ltd.,Shanghai,200120,China)

机构地区：[1]太重集团(上海)装备技术有限公司,上海200120

出　　处：《机械设计与制造工程》2024年第3期29-33,共5页Machine Design and Manufacturing Engineering

基　　金：山西省科技重大专项计划“揭榜挂帅”项目(202201060301015)。

摘　　要：针对MW风电机组永磁发电机温度场疲劳计算问题进行研究,通过预埋在发电机绕组附近的温度传感器采集温度获得温度场疲劳载荷;分析确认发电机定子结构的材料力学性能、几何结构、应力与温度载荷满足线性关系;提出一种发电机母材及焊缝温度场疲劳计算的新方法;运用子模型技术及热点应力法对新方法的计算结果进行对比验证。研究结果表明,这种新方法满足发电机温度场疲劳计算的工程需求。The temperature fatigue calculation of MW wind turbine permanent magnet generator is studied.The temperature fatigue load is obtained by the temperature sensor embedded the generator winding.It is confirmed that the material mechanical properties,geometric structure,stress and temperature load of generator stator structure satisfy the linear relationship.A new method for calculating temperature fatigue of generator base metal and weld is presented.The calculation results of the new method are compared and verified by using the sub-model technique and hot spot stress method.The results show that the new method can meet the engineering requirements of temperature fatigue calculation of generator.

关 键 词：永磁发电机 温度场 等效疲劳载荷 热点应力法 

分 类 号：TH128[机械工程—机械设计及理论]