Resonance Suppression Based on PR Control for Single-Phase Grid-Connected Inverters With LLCL Filters

被引：46
|
作者：
Alemi, Payam [1 ]
Bae, Cheol-Ju [1 ]
Lee, Dong-Choon [1 ]
机构：
[1] Yeungnam Univ, Dept Elect Engn, Gyongsan 712749, South Korea
来源：
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS | 2016年 / 4卷 / 02期
基金：
新加坡国家研究基金会;
关键词：
Active damping (AD); LLCL filters; proportional-resonant (PR) control; single-phase grid inverter; STABILITY ANALYSIS; LCL; CONVERTER; VOLTAGE; DESIGN; CAPACITOR; RESISTOR;
D O I：
10.1109/JESTPE.2015.2464699
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：
This paper proposes a novel resonance suppression scheme for a single-phase grid inverter with the LLCL filters. In the structure of the LLCL filters, a small inductor is added in series with the capacitor in the conventional LCL filters to make zero impedance at the switching frequency, by which the grid-side inductor filter can be reduced remarkably. However, a resonance phenomenon is still a critical issue in this system. Therefore, an active damping method based on the proportional and resonant controllers is proposed to suppress the resonance. In addition, the stability is analyzed for the feasibility of the proposed algorithm. Finally, the simulation and experimental results have verified the control algorithm for a single-phase grid inverter.
引用
收藏
页码：459 / 467
页数：9
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