Investigation on electromagnetic interference in new energy inverter system

In this paper, a new method is proposed to test the conducted electromagnetic interference (EMI) noise of new energy based on analysis the internal structure and measuring principle of line impedance stabilization network. A more accurate measurement of conducted EMI noise in new energy system can be provided by this method in order to design the appropriate filter for conducted EMI noise suppression. In addition, by adding capacitor and inductance in DC side can reduce the EMI noise as well. The result of experimental shows the method is effective.