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抑制VFTO对智能组件传导干扰的EMI滤波器研究

DOI: 10.16188/j.isa.1003-8337.2015.03.022, PP. 120-125

Keywords: VFTO,智能组件,EMI滤波器,ATP-EMTP

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Abstract:

GIS变电站内开关操作会产生高达数百兆赫兹的特快速暂态过电压(VFTO),通过对变电站智能组件的仿真,并采取在智能组件端口处加装EMI滤波器的办法来抑制VFTO的干扰。通过对EMI滤波器插入损耗、共模参数、差模参数的计算与仿真分析,得到符合要求的EMI滤波器电容、电感参数,并通过ATP-EMTP仿真模型验证该EMI滤波器能有效抑制进入智能组件的VFTO传导干扰。

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