不同转子结构的永磁无刷直流高速电机设计及分析
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摘要
电机的设计是一个多重物理场的综合设计。本文对"10kW,10000r/min"的永磁无刷直流高速电机进行了设计,针对表贴式径向励磁和内嵌式切向励磁两种转子结构,分析了无刷直流电动机的电磁场及损耗的计算过程。在多物理场分析仿真的基础上,得到了满足电磁性能、转子强度、临界转速的综合设计结果。重点设计分析了内嵌式永磁无刷直流电机,利用电磁与有限元分析软件Ansoft的静态和瞬时操作电动机模拟状态的有限元分析的措施,得到的输入和输出扭矩,电流,速度,磁通量,电位和其他性能曲线,分析其对运动功能,对永磁无刷直流高速电机进行电磁分析对比和损耗对比分析。得出该设计下性能更合理的转子结构。
引文
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[8]Evans SA.Novel Rotor Design for Interior Permanent Magnet Brushless Machines:Initial Investigation.International Confer-ence on Electrical Machines,2008:1-6
[9]Han-Wook Cho,Seok-M yeong Jang,,Sang-K yu Cho.i A Design Approach to Reduce Rotor Losses in High-Speed Permanent Mag-net Machine for Turbo-Compressor.IEEE Trans on Magnetics,2006,42(10):3521-3523
[2]Gerada D,Mebarki A,Brown N L,et al.High-speed electrical machines:technologies,trends,and develop-ments[J].IEEE Transactions on Industrial Electronics,2014,61(6):2946-2959.
[3]Kolondzovski Z,Arkkio A,Larjola J,et al.Power limits of high-speed permanent-magnet electrical machines for compressor applications[J].IEEE Transac-tions on Energy Conversion,2011,26(1):73-82.
[4]Wang Jiqiang,Wang Fengxiang,Kong Xiaoguang.Design and analysis of electromagnetic properties for high speed pm generator[J].Proceedings of the CSEE,2008,28(20):105-110.
[5]赵南南,刘卫国.无刷直流电动机电磁场-热场耦合分析.微特电机[J],2009,37(3):9-11
[6]Zhu Z Q,Ng K,Schofield N,Howe D.Improved Analytical Modeling of Rotor Eddy Current Loss in Brushless Machines E-quipped with Surface-Mounted Permanent Magnets.IEE Proceedings on Electric Power Applications,2004,151(6):641-650
[7]余莉,胡虔生,易龙芳等.永磁内嵌式无刷直流电机铁耗的分析和计算[J].电机与控制应用,2007,34(4):11-14
[8]Evans SA.Novel Rotor Design for Interior Permanent Magnet Brushless Machines:Initial Investigation.International Confer-ence on Electrical Machines,2008:1-6
[9]Han-Wook Cho,Seok-M yeong Jang,,Sang-K yu Cho.i A Design Approach to Reduce Rotor Losses in High-Speed Permanent Mag-net Machine for Turbo-Compressor.IEEE Trans on Magnetics,2006,42(10):3521-3523