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分数槽集中绕组永磁同步电机的电感计算

, PP. 119-124

Keywords: 永磁同步电机,分数槽,集中绕组,电感计算

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Abstract:

在少槽多极的分数槽集中绕组永磁同步电机中,存在幅值较大的次谐波和与基波绕组系数相同的高次谐波,特别是存在与基波绕组系数相同、转向相反、幅值很大、极对数与基波相差仅几对极的谐波。使得电机的电枢反应谐波磁场很强,与之相对应的谐波漏抗很大,电机的总漏电感很大,其基波励磁电感与传统短距分布绕组电机相比小很多。一般情况下,漏电感都比励磁电感还大。在对电机磁路进行理想假定的条件下,针对不同槽极数组合的单元电机,推导出该类电机电感参数的计算公式。其中,电枢反应基波励磁电感计算公式与传统的交流绕组相同,而电枢反应总电感和谐波漏电感计算不同于传统的交流绕组。

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