Study on a novel 60 kVA soft-switching plasma converter

The high-power plasma technology is widely used to date. A novel circuit topology with soft-switching by utilizing magnetizing inductance, leakage inductance and distributed inductance is presented. This topology is applied to the realization of high power plasma converter. The current injection phase-shifting technique is introduced into the research of soft-switching plasma converter successfully. The magnetic bias of transformer and the protection of switching parts are solved. A novel 60 kVA plasma converter with full range soft-switching is produced.