Study on Soft Switching Technology to Reduce Electromagnetic Interference of PWM Inverter

To reduce the electromagnetic interference(EMI) of traditional PWM inverter, the paper puts forward a novel soft switching PWM inverter, expounds the inverter's configuration and working principle, analyses it's realization method, and validates it through simulation and experiment. The EMI conductive noise of AC inverter system was measured, analyzed and compared under hard switching and soft switching respectively. It testifies the validity of soft switching inverter on reducing EMI.