High voltage gain;
hybrid switched-capacitor;
low voltage stress;
power factor correction (PFC);
three-level voltage;
three-phase;
voltage multiplier;
BOOST CONVERTER;
DC CONVERTER;
STEP-UP;
MULTIPLIER;
DESIGN;
AC;
TRANSFORMER;
SIMULATION;
D O I:
10.1109/TPEL.2015.2467210
中图分类号:
TM [电工技术];
TN [电子技术、通信技术];
学科分类号:
0808 ;
0809 ;
摘要:
In this paper, a three-phase multilevel power factor correction rectifier using the hybrid switched-capacitor concept is proposed. The converter is suitable for high-voltage-gain applications from conventional three-phase low-voltage sources. The three-level voltage operation reduces the weight and bulk of the magnetic devices. The main advantages of the proposed converter are low number of active switches, high voltage gain, sinusoidal currents, low voltage stress across all components, and simple control. Both steady-state and dynamic analyses are investigated. Experimental results for a 7500-W/220-V-to-1600-V laboratory prototype with maximum efficiency of 97.78% are presented and discussed.