Title :
Single inductor three-level boost bridgeless PFC rectifier with nature voltage clamp
Author :
Su, Bin ; Zhang, Junming ; Lu, Zhengyu
Author_Institution :
Dept. of Electr. Eng., Zhejiang Univ., Hangzhou, China
Abstract :
A single inductor three-level boost bridgeless PFC rectifier with nature voltage clamp is proposed. In the proposed converter, the operation principle is quite different from other boost bridgeless three-level converters. The charging stage is presented in the low side while the discharging stage in the high side and vice versa. As a result, nature voltage clamp is achieved. And the slow diodes are `shared´. They operate not only as rectifying diodes, but also as voltage clamping diodes. Besides, only single inductor is required and the device utilization factor is high. Besides, the common-mode(CM) noise is rather low. First, the operational principle are analyzed in detail. Then the performance evaluation and design consideration are presented. Finally, a 1kW experimental prototype is built. The result shows that the efficiency is above 94% at full load under 90V and the maximum efficiency is 98.4%.
Keywords :
power convertors; power factor correction; rectifiers; boost bridgeless three-level converters; common-mode noise; device utilization factor; efficiency 98.4 percent; nature voltage clamp; power 1 kW; power factor correction; single inductor three-level boost bridgeless PFC rectifier; voltage 90 V; Bidirectional control; Bridge circuits; Clamps; Inductors; Leg; Pulse width modulation; Rectifiers; Semiconductor diodes; Switches; Voltage; bridgeless; high device utilization factor; high efficiency; high voltage; low common-mode noise; low conduction losses; power factor correction; rectifier; reverse recovery; single phase; three-level; voltage clamp;
Conference_Titel :
Power Electronics Conference (IPEC), 2010 International
Conference_Location :
Sapporo
Print_ISBN :
978-1-4244-5394-8
DOI :
10.1109/IPEC.2010.5543819
