Mobile QR Code QR CODE : The Korean Institute of Power Electronics
Title A Switching Method of Single Phase Grid Connected Inverter for Common Mode Noise Reduction
Authors Seung-Ju Lee ; Chang-Pyo Hong ; Hag-Wone Kim ; Kwan-Yuhl Cho
DOI 10.6113/TKPE/2016.21.1.27
Page pp.27-33
ISSN 1229-2214
Keywords Single phase PWM inverter; Common mode voltage; Common mode current; EMI
Abstract A pulse-width modulation (PWM) method for common mode noise reduction in a PWM inverter connected to a single-phase grid is proposed in this study. The extensively used conventional switching method may experience common mode voltage problems, which generate current leakage and electromagnetic induction problems. In the proposed switching method, the neutral point of the output voltage is always fixed at both ends of the input voltage to reduce common mode noise. The validity of the proposed method is proven through simulation and experimental results.