Active Damping of LLCL Filters Using PR Control for Grid-Connected Three-Level T-Type Converters

被引：17
作者：
Alemi, Payam [1 ]
Jeong, Seon-Yeong [1 ]
Lee, Dong-Choon [1 ]
机构：
[1] Yeungnam Univ, Dept Elect Engn, Kyongsan 712749, South Korea
来源：
JOURNAL OF POWER ELECTRONICS | 2015年 / 15卷 / 03期
基金：
新加坡国家研究基金会;
关键词：
Active damping; Grid-connected converter; LLCL filters; PR control; LCL-FILTER; STABILITY ANALYSIS; PWM RECTIFIERS; DESIGN; INVERTERS; IMPLEMENTATION; RESISTOR;
D O I：
10.6113/JPE.2015.15.3.786
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, an active damping control scheme for LLCL filters based on the PR (proportional-resonant) regulator is proposed for grid-connected three-level T-type PWM converter systems. The PR controller gives an infinite gain at the resonance frequency. As a result, the oscillation can be suppressed at that frequency. In order to improve the stability of the system in the case of grid impedance variations, online grid impedance estimation is applied. Simulation and experimental results have verified the effectiveness of the proposed scheme for three-phase T-type AC/DC PWM converters.
引用
收藏
页码：786 / 795
页数：10
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