Three-Phase Four-Wire Unified Power Quality Conditioner Based on AC-DC-AC Nine-Leg Converter and Shunt Converter

被引：2
作者：
Cardoso, Jean T. [1 ]
Jacobina, Cursino B. [1 ]
Felinto, Alan S. [1 ]
Correa, Mauricio B. R. [1 ]
机构：
[1] Univ Fed Campina Grande, Elect Engn Dept, Campina Grande, Brazil
来源：
2022 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) | 2022年
关键词：
SHARED LEGS;
D O I：
10.1109/ECCE50734.2022.9947873
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
In this paper, a three-phase transformerless unified power quality conditioner (UPQC) based on a nine-leg converter and a four-wire shunt converter is proposed and investigated. The system ensures grid power factor compensation with low harmonic content and feeds the load with a sinusoidal waveform. The shunt converter provides balanced currents with reactive and harmonic compensation, which allows the nine-leg converter to operate with a wide range of unbalanced loads. In addition, the shared-leg currents are minimized, reducing the power losses. The system model, pulse-width modulation (PWM) techniques, and control strategy are discussed in this work. Experimental results are presented to confirm the feasibility of the proposed structure.
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页数：8
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