轴向球面磁悬浮飞轮电机磁热固耦合分析  

Magneto-thermal-solid Coupling Analysis of an Axially Spherical Bearingless Flywheel Machine

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作  者:朱志莹 孟凡浩[2] 徐政 安聪 焦金帅[2] ZHU Zhiying;MENG Fanhao;XU Zheng;AN Cong;JIAO Jinshuai(School of Electrical Engineering,Southeast University,Nanjing 210096;School of Electric Power Engineering,Nanjing Institute of Technology,Nanjing 211167)

机构地区:[1]东南大学电气工程学院,南京210096 [2]南京工程学院电力工程学院,南京211167

出  处:《电气工程学报》2024年第3期220-227,共8页Journal of Electrical Engineering

基  金:国家自然科学基金(51977103);中国博士后科学基金(2018M632201);江苏省重点研发计划(BE2022003,BE2021094);江苏省高等学校自然科学基金(20KJA470004);江苏高校“青蓝工程”(SJS202327);江苏省配电网智能技术与装备协同创新中心开放基金资助项目。

摘  要:针对轴向球面磁悬浮飞轮电机(Axially spherical bearingless flywheel machine,AS-BFM)在电磁、温度和应力耦合作用下的温升和形变问题,提出磁热固耦合的温度场分布和部件形变求解分析方法。该方法基于轴向球面磁悬浮飞轮电机的电磁损耗分析,确立各部件的热参数和应力参数,并建立电机三维有限元分析模型;在此基础上,求解得到电机在不同转速下的损耗和温度场分布特性,并将温度场结果作为载荷导入应力场分析求解电机各部件形变规律;最后,通过耦合仿真分析揭示了电机不同转速对温升和形变的影响规律,三维有限元分析结果验证了磁热固耦合分析方法的有效性,为电机的散热设计、结构优化以及材料选择提供了依据。Aiming at the problem of temperature rise and components deformation of an axially spherical bearingless flywheel machine(AS-BFM),the magnetic-thermal-solid coupling analytical method is proposed.The electromagnetic loss of AS-BFM is analyzed,and the thermal parameters and stress parameters of AS-BFM components are established.Then,a three-dimensional finite element analysis model of AS-BFM is built,and the loss and temperature field distribution characteristics of AS-BFM at different speeds are obtained.Further,the results of the temperature field are imported into the stress field analysis as a load to solve the components deformation.Finally,the influence law of the temperature rise and components deformation under different speeds of AS-BFM has been revealed by coupling simulation analysis,and three-dimensional finite element simulation results verified the validity of the proposed magnetic-thermal-solid coupling analysis method,which laid the foundation of heat dissipation design,structural optimization and material selection of AS-BFM.

关 键 词:飞轮电机 磁热固耦合 电磁损耗 温升 形变 

分 类 号:TM351[电气工程—电机]

 

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