| 永磁同步电机分数槽集中绕组磁动势 |
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| 引用本文： | 陈益广,潘玉玲,贺鑫.永磁同步电机分数槽集中绕组磁动势[J].电工技术学报,2010(10). |
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| 作者姓名： | 陈益广 潘玉玲 贺鑫 |
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| 作者单位： | 天津大学电气与自动化工程学院; |
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| 摘 要： | 对单元电机的单个线圈、线圈组、相绕组和三相绕组的磁动势进行了分析。当定子槽数为奇数时,除3的整倍数之外其他极对数的磁动势都存在,其中与基波绕组系数相同、转向相反、幅值最大的谐波极对数仅与基波相差1对极。当定子槽数为偶数时,除偶数和3的整倍数之外其他极对数的磁动势都存在,其中与基波绕组系数相同、转向相反、幅值最大的谐波极对数仅与基波相差2或者4对极。电机内部还存在幅值较大的次谐波以及绕组系数与基波相同的高次谐波,它们会对电机造成不良影响。电机高速运行时,这些谐波磁动势产生的磁场会在永磁体内感应出涡流,产生损耗,造成永磁体温升增加,甚至去磁。
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| 关 键 词： | 永磁同步电机 分数槽 集中绕组 磁动势 谐波分析 |
Magnetomotive Force in Permanent Magnet Synchronous Machine With Concentrated Fractional-Slot Winding |
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| Chen Yiguang Pan Yuling He Xin.Magnetomotive Force in Permanent Magnet Synchronous Machine With Concentrated Fractional-Slot Winding[J].Transactions of China Electrotechnical Society,2010(10). |
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| Authors: | Chen Yiguang Pan Yuling He Xin |
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| Affiliation: | Chen Yiguang Pan Yuling He Xin(Tianjin University Tianjin 300072 China) |
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| Abstract: | An analysis is carried out on magnetomotive force(MMF) of the single coil,coil group,phase winding and the three-phase winding of cell permanent magnet synchronous machine with fractional-slot concentrated winding.When the stator slot number is odd,all the MMF exist besides the pole-pairs number is 3 multiple,which have the same fundamental wave winding coefficient,reverse rotatining,and the pole-pairs number corresponding to the harmonic with the largest amplitude misses only one with that of the fundament... |
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| Keywords: | Permanent magnet synchronous machine fractional-slot concentrated winding magnetomotive force harmonic analysis |
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