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混合动力客车低频电磁辐射机理及抑制方法

, PP. 202-207

Keywords: 混合动力汽车,电磁干扰,低频电磁辐射,产生机理,抑制措施

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Abstract:

某混合动力客车低频电场和磁场辐射水平存在超标问题,通过分析车内主要电磁干扰源的特性,研究了整车电场和磁场干扰的产生机理,明确了驱动电机三相工作电流、电机控制器功率开关器件动作,以及DC-DC电源变换器开关器件通断是整车辐射的主要干扰源。另外,针对干扰源的特性,分别制定和采取了相应的干扰抑制措施。最后,通过实验对比验证了所采用的干扰抑制措施能够减小整车低频电场和磁场辐射的水平。此外,该措施能够为提高其他混合动力汽车电磁兼容性提供参考。

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