高速磁悬浮永磁电机多物理场分析及转子损耗优化

发布时间：2018-12-05 19:56

【摘要】：为提高高速磁悬浮永磁电机的综合性能,得到最优的设计参数,针对一台30kW,48 000rpm的磁悬浮电机进行了电磁场、转子动力学以及转子强度分析,提出一种基于多物理场分析结果的电机尺寸优化方法。使用ANSYS以及ANSOFT对电机进行建模和有限元分析,并用ISIGHT软件进行集成优化设计。以转子损耗最小为优化目标,电机几何尺寸为设计变量,在优化过程中考虑尺寸变化对电机转子模态以及强度的影响,以尺寸、电机电磁性能、力学性能等为约束条件。经过优化后,电机的转子损耗减小16.7%,其余性能均符合设计要求。根据优化设计结果加工了样机并进行电机对拖与温升实验,结果证明了优化设计的合理性,验证了本文提出方法的正确性。
[Abstract]:In order to improve the comprehensive performance of high speed maglev permanent magnet motor and obtain the optimum design parameters, the electromagnetic field, rotor dynamics and rotor strength of a 30 kW 48 000rpm maglev motor are analyzed. A method of motor size optimization based on the results of multi-physical field analysis is proposed. ANSYS and ANSOFT are used for modeling and finite element analysis of motor, and ISIGHT software is used for integrated optimization design. Taking the minimum rotor loss as the optimization objective and the geometric size of the motor as the design variable, the influence of the size change on the mode and strength of the motor rotor is considered in the optimization process, and the size, electromagnetic performance and mechanical properties of the motor are taken as the constraint conditions. After optimization, the rotor loss of the motor is reduced by 16.7. the other performances meet the design requirements. According to the results of the optimal design, the prototype is machined and the motor pair drag and temperature rise experiments are carried out. The results prove the rationality of the optimal design and verify the correctness of the proposed method in this paper.
【作者单位】：北京航空航天大学惯性技术重点实验室;北京航空航天大学新型惯性仪表与导航系统技术国防重点学科实验室;北京市高速磁悬浮电机技术及应用工程技术研究中心;
【基金】：国家重大科学仪器设备开发专项资助项目(No.2012YQ040235) 国家自然科学基金资助项目(No.61573032)
【分类号】：TM351

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