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新型可变磁通磁阻电机振动和噪声研究与开关磁阻电机的比较

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Keywords: 可变磁通磁阻电机,开关磁阻电机,振动,噪声

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Abstract:

通过电磁和机械有限元方法计算并通过实验研究一种新型可变磁通磁阻电机的振动和噪声。这种新型电机使用与开关磁阻电机类似的定、转子冲片,但在定子侧放置一套直流励磁绕组;同时,用三相双极性桥式电路产生的正弦电流驱动定子电枢绕组。由于在二阶振动模态频率点附近的振动得到极大的降低,这种新型可变磁通磁阻电机所产生的振动和噪声得到了极大地削弱。实验证实相比开关磁阻电机,这种新型可变磁通磁阻电机在空载和负载下可以使声压级分别降低4dBA和8dBA。

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