Review and Challenges of EMI Crosstalk Between Power Circuit and Electronic Signal in High-power Inverters
Due to the application of the new generation power semiconductor devices,dv/dt and di/dt are increased rapidly.There is severe EMI crosstalk between power circuit and electronic signal,which greatly threatens the operation reliability of high-power inverters.In this article,four main coupling channels of the high-power inverters are taken as the entry points,including the auxiliary power supply,gate drive,sampling circuit and input and output cables.Then,the current research status at home and abroad is reviewed,and the research progress are expounded,including the interference and shield of the PWM signal in the drive channel,the interference escape problem caused by EMI crosstalk,and crosstalk between input and output cables.Finally,based on the hot spots and needs of the industry,this article lists the main challenges faced by the research on EMI crosstalk between power circuit and electronic signal coupling in high-power inverters.
high-power invertersEMI crosstalk between power circuit and electronic signalelectromagnetic compatibilityoperation reliability
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