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变频器IGBT开路故障诊断方法 被引量:1

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摘要 通过对平均电流矢量法、三相平均法和傅里叶变换归一化方法的研究,对变频器逆变桥故障做出了相应的诊断,诊断结果表明,在平稳状态下,三相平均电流是可以准确无误运行的,如果一旦开路发生故障,在突加负载或者突减负载的时候,对试验的结果特别容易造成误差,本文的目的就是要找出解决电机电流平均值对基波分量造成的误差和影响的方法,并证实其方法的有效性和可实施性。
作者 曲亚男
出处 《电子制作》 2014年第19期17-17,共1页 Practical Electronics
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