Soft transition operation of UPS in high-power-factor mode of three-phase front-end rectifier

被引：0
|
作者：
Dhomane, G. A. [1 ]
Suryawanshi, H. M. [1 ]
机构：
[1] VNIT, Dept Elect Engn, Nagpur, Maharashtra, India
来源：
2007 INTERNATIONAL CONFERENCE ON POWER ELECTRONICS AND DRIVE SYSTEMS, VOLS 1-4 | 2007年
关键词：
high-frequency-current-injection; high-power-factor; soft-transition; power-factor-correction circuit;
D O I：
暂无
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：
A three-phase to single-phase ac-to-ac converter, with soft-transition of switches is presented. The converter has THD less than 4% and operates at almost unity-power-factor for wide variations in load, due to high frequency current injection, at the input of front-end-rectifier. A small filter is required at the output for filtering the high-frequency content. Sinusoidal PWM technique is used for controlling the output voltage. DSP is used for generating the desired gate pulses. The converter has high efficiency, low EMI emissions, high power packing density and suitable for UPS system. A Simulation and experimentation is carried out on a 3 kW converter and experimental results are in good agreement with simulation results.
引用
收藏
页码：1590 / +
页数：3
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