基于矩形导线的永磁同步电机绕组优化设计

微特电机 ›› 2020, Vol. 48 ›› Issue (7): 12-18.

基于矩形导线的永磁同步电机绕组优化设计

周飞, 董腾辉, 张希

上海交通大学汽车电子控制技术国家工程实验室,上海 200240

收稿日期:2019-05-30 出版日期:2020-07-28 发布日期:2020-07-17
基金资助:
国家自然科学基金项目(51677118);国家重点研发重点专项(2017YFE0102000)

Optimization Design of Permanent Magnet Synchronous Motor Windings Based on Rectangular Conductor

ZHOU Fei, DONG Teng-hui, ZHANG Xi

National Engineering Laboratory of Automotive Electronic Control Technology,Shanghai Jiaotong University,Shanghai 200240,China

Received:2019-05-30 Online:2020-07-28 Published:2020-07-17

摘要/Abstract

摘要： 为实现电机绕组设计优化,基于交流损耗的产生机理探究了矩形导线几何参数对损耗与温升的影响;基于理论分析与有限元仿真结果,对比了不同绕组设计方案在产热、传热及温升方面的表现,从而获取了满足设计要求的绕组参数指标;在综合考虑制造成本的情况下,选定了定子优化设计方案。使用局部模型对多种绕组配置的损耗与温升进行了测试,验证结果显示,该绕组优化设计方案,在保证车载电机在整个运行空间内热安全前提下,显著提高了电机能量密度。

关键词: 电动汽车驱动电机, 绕组优化设计, 磁-热耦合分析, 损耗和温升

Abstract: The influence of the geometric parameters of rectangular conductors on the loss rate and temperature rise was studied. Based on the theoretical analysis of the generation mechanism of AC loss and finite element calculation results,the common winding design schemes were compared in terms of heat generation,heat transfer and temperature rise to obtain the proper winding parameters.The optimal design scheme was determined with the manufacturing difficulty and cost.The thermal performance of the chosen design was tested with the partial stator assembly motorette and compared with the others.The results show that the optimal scheme can guarantee the thermal safety in the whole operating space and effectively improve the power density.

Key words: electric vehicle drive motor, winding optimization design, thermal-magnetic coupling analysis, loss and temperature rise

中图分类号:

周飞, 董腾辉, 张希. 基于矩形导线的永磁同步电机绕组优化设计[J]. 微特电机, 2020, 48(7): 12-18.

ZHOU Fei, DONG Teng-hui, ZHANG Xi. Optimization Design of Permanent Magnet Synchronous Motor Windings Based on Rectangular Conductor[J]. Small & Special Electrical Machines, 2020, 48(7): 12-18.

参考文献

[1] POPESCU M,STATON D A,BOGLIETTI A,et al.Modern heat extraction systems for power traction machines—a review [J].IEEE Transactions on Industry Applications,2016,52(3):2167-2175.
[2] 张妍懿,王晓兵,韩涛,等.基于绕组温升的电动汽车电机老化模型试验研究 [J].汽车工程学报, 2018(1):50-53.
[3] 于文霞, 吴刚. 高压电机定子线圈匝间绝缘结构 [J].防爆电机, 2007, 42(5): 45-47.
[4] WILLIAMSON S J,WROBEL R,BOOKER J D,et al.Effects of insulation ageing on the conductive heat transfer from the winding body into machine periphery/stator core pack[C]//Proceedings of the Iet International Conference on Power Electronics, Machines and Drives.IEEE,2016:1-6.
[5] MELLOR P,WROBEL R,SIMPSON N.AC losses in high frequency electrical machine windings formed from large section conductors[C]//Proceedings of the Energy Conversion Congress and Exposition.IEEE,2014:5563-5570.
[6] WROBEL R,MELLOR P H,POPESCU M,et al.Power loss analysis in thermal design of permanent-magnet machines—a review [J].IEEE Transactions on Industry Applications, 2016, 52(2): 1359-1368.
[7] WROBEL R,WILLIAMSON S J,SIMPSON N,et al.Impact of slot shape on loss and thermal behaviour of open-slot modular stator windings[C]//Proceedings of the Energy Conversion Congress and Exposition.IEEE,2015:4433-4440.
[8] BOGLIETTI A, CARPANETO E, COSSALE M, et al. Stator winding thermal conductivity evaluation: An industrial production assessment[C]//Proceedings of the Energy Conversion Congress and Exposition.IEEE,2016:4865-4871.
[9] ZHANG X,DONG T,ZHOU F.Equivalent Thermal Conductivity Estimation for Compact Electromagnetic Windings [J].IEEE Transactions on Industrial Electronics,2019,66(8):6210-6219.
[10] 邹继斌,江善林,梁维燕.考虑邻近效应的高速永磁无刷电机交流损耗 [J].电机与控制学报,2010,14(5):49-55.
[11] 张炳义,刘云飞,冯桂宏,等.高速永磁电机扁铜线绕组交流铜耗研究 [J].机电工程, 2017,34(9):1032-1037.
[12] AYAT S,WROBEL R,GOSS J,et al.Estimation of equivalent thermal conductivity for impregnated electrical windings formed from profiled rectangular conductors[C]//Proceedings of the Iet International Conference on Power Electronics,Machines and Drives.IEEE,2016:1-6.
[13] STATON D,BOGLIETTI A,CAVAGNINO A.Solving the more difficult aspects of electric motor thermal analysis in small and medium size industrial induction motors [J].IEEE Transactions on Energy Conversion,2005,20(3):620-628.
[14] WROBEL R,MELLOR P H,MCNEILL N,et al.Thermal Performance of an Open-Slot Modular-Wound Machine With External Rotor [J].IEEE Transactions on Energy Conversion,2010,25(2):403-411.
[15] WROBEL R,MELLOR P H,HOLLIDAY D.Thermal modeling of a segmented stator winding design [J].IEEE Transactions on Industry Applications,2010,47(5):2023-2030.
[16] SUMISLAWSKAA M,GYFTAKIS K N,KAVANAGH D F,et al.The impact of thermal degradation on properties of electrical machine winding insulation material [J].IEEE Transactions on Industry Applications,2016,52(4): 2951-2960.
[17] WROBEL R,MELLOR P H.Design considerations of a direct drive brushless machine with concentrated windings [J].IEEE Transactions on Energy Conversion,2008,23(1):1-8.
[18] SULLIVAN C R.Optimal choice for number of strands in a litz-wire transformer winding[C]//Proceedings of the IEEE Power Electronic Specialists Conference.IEEE,1997:28-35.
[19] WROBEL R,SALT D E,GRIFFO A,et al.Derivation and scaling of AC copper loss in thermal modeling of electrical machines [J].IEEE Transactions on Industrial Electronics, 2012, 61(8): 4412-4420.
[20] WROBEL R,STATON D,LOCK R,et al.Winding design for minimum power loss and low-cost manufacture in application to fixed-speed PM generator[C]//Proceedings of the Energy Conversion Congress and Exposition.IEEE,2014:1806-1813.
[21] MELLOR P,WROBEL R,SALT D,et al.Experimental and analytical determination of proximity losses in a high-speed PM machine[C]//Proceedings of the 2013 IEEE Energy Conversion Congress and Exposition.IEEE,2013:15-29.