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考虑局部磁滞损耗的复合电机铁损耗计算

DOI: 10.13334/j.0258-8013.pcsee.2014.30.017, PP. 5395-5400

Keywords: 磁性齿轮电机,涡流损耗,磁滞损耗,雨流计数法

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Abstract:

磁性齿轮复合电机无论是机械结构还是磁路结构,均比普通永磁同步电机复杂,如何高效准确地计算出铁损耗,对该类电机的设计与优化具有重要的意义。该文设计制造了一台磁性齿轮复合电机样机,并采用有限元时步法进行了详细计算。在此基础上,通过对每一个铁心单元的磁密变化进行分析,计算了该复合电机的铁损耗计算。在计算磁滞损耗时,应用通常用于机械应力应变迟滞计算的雨流计数法,快速统计出构成局部磁滞回环的峰谷点,从而计算出局部磁滞损耗。最后通过两个试验步骤,把电机的铁损耗从空载损耗中分离出来,所得的试验结果验证了所述方法的有效性。

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