Title :
A soft-switching full-bridge inverter with high efficiency
Author :
Yenan Chen ; Guangcheng Hu ; Chengrui Du ; Min Chen ; Dehong Xu
Author_Institution :
Inst. of Power Electron., Zhejiang Univ., Hangzhou, China
Abstract :
A Zero-Voltage-Switching (ZVS) PWM scheme for full-bridge inverter with active-clamping technique is proposed. The ZVS condition is analyzed and the ZVS PWM scheme is designed to realize zero voltage switching for both main switches and auxiliary switch in a large power range. The ZVS PWM scheme also adjusts the energy stored in resonant inductor with variation of load to reduce the circulating loss in light load range. The switching frequency is increased and the filter inductor is significantly reduced. The experiment on a 3 kW prototype shows the realization of ZVS and high efficiency.
Keywords :
filters; inductors; invertors; zero voltage switching; ZVS PWM scheme; ZVS condition; auxiliary switch; circulating loss; filter inductor; load variation; main switches; power 3 kW; power range; soft-switching full-bridge inverter; switching frequency; zero-voltage-switching; Capacitors; Clamps; Inductors; Inverters; Pulse width modulation; Switches; Zero voltage switching; ZVS PWM; Zero voltage switching; full-bridge inverter;
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2013 IEEE
Conference_Location :
Denver, CO
DOI :
10.1109/ECCE.2013.6647055
