论文信息 - Grounding Effect on Common Mode Interference of Coal Mine Inverter

Grounding Effect on Common Mode Interference of Coal Mine Inverter

This paper put forward a new model to analyze the grounding effect on common mode interference of underground PWM inverter. Taking into account the grounding method,the author establishs a common mode equivalent circuit of underground inverter. After Comparison of calculation results by Matlab software simulation it can be conclude that ungrounded neutral of transformer could redue common mode current in PWM system, but not very effective, the most efficient way is to increase grounding impedance of inverter and motor.

Sun Ji-ping | Wang Bao-bao | Cheng Qiang | Jia Xu-fen

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