| 新型外转子低速直驱永磁游标电机的损耗 |
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| 引用本文： | 朱洒,程明,李祥林,李顺.新型外转子低速直驱永磁游标电机的损耗[J].护理与康复,2015(2):14-20. |
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| 作者姓名： | 朱洒 程明 李祥林 李顺 |
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| 作者单位： | 东南大学电气工程学院 南京 210096,东南大学电气工程学院 南京 210096,东南大学电气工程学院 南京 210096,东南大学电气工程学院 南京 210096 |
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| 摘 要： | 对一种新型自增速永磁游标电机的损耗情况进行了分析，重点分析了永磁体和铝壳中的损耗。在电磁损耗计算中采用二维时步有限元法，阐明了采用二维有限元法计算永磁体中涡流损耗的原理和注意事项，并通过三维有限元法检验了二维有限元计算永磁体涡流损耗的误差。分析了铝壳损耗的主要影响因素以及减小方法。空载计算损耗与实测损耗基本一致，验证了损耗计算方法的正确性。最后研究了不同负载情况下损耗的变化情况，以及温度对损耗的影响。
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| 关 键 词： | 永磁电机 损耗计算 电磁-热耦合分析 游标电机 |
Loss Analysis of a New Low-Speed Direct-Drive Permanent-Magnet Vernier Machine |
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| Zhu S,Cheng Ming,Li Xianglin and Li Shun.Loss Analysis of a New Low-Speed Direct-Drive Permanent-Magnet Vernier Machine[J].Nursing and Rehabilitation Journal,2015(2):14-20. |
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| Authors: | Zhu S Cheng Ming Li Xianglin and Li Shun |
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| Institution: | Southeast University Nanjing 210096 China,Southeast University Nanjing 210096 China,Southeast University Nanjing 210096 China and Southeast University Nanjing 210096 China |
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| Abstract: | In this paper, the loss of a new low speed vernier machine is calculated based on the 2D time-stepping finite element method. The eddy current losses in the permanent magnet(PM) and the outer aluminum case are taken special consideration. For the eddy current loss in PM, the 3D time-stepping method is compared with the 2D one and the key points for the calculation of eddy loss in PM is highlighted. For the eddy current loss in the outer aluminum case, different influence parameters are analyzed and the method to reduce it is proposed. The calculated no-load loss is verified by experiment on a prototype machine. The loss calculations under different load conditions are also carried out. At the last, the influence of temperature variation on the loss characteristics is also analyzed. |
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| Keywords: | PM machine loss calculation coupled electromagnetic-thermal analysis vernier machine |
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