Virtual RLC Active Damping for Grid-Connected Inverters with LCL Filters

被引：0
|
作者：
Huang, Qicheng [1 ]
Rajashekara, Kaushik [1 ]
机构：
[1] Univ Houston, Dept Elect & Comp Engn, Power Elect Microgrid & Subsea Lab, Houston, TX 77204 USA
来源：
2017 THIRTY SECOND ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC) | 2017年
关键词：
LCL filter; resonance damping; virtual RLC damper; ROBUSTNESS; CONVERTERS; STABILITY; DESIGN; DELAY;
D O I：
暂无
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：
This paper presents a virtual RLC damper for resonance damping in an LCL-type grid-connected voltage source inverter by capacitor current feedback through a second-order high pass filter. The proposed method can achieve good damping performance and enhance the system stability by inherently compensating phase lag around the resonant frequency introduced by digital time delay. Moreover, the analysis in this paper proves that the existing virtual RC damper method is a special case of the proposed method. The parameter design principle for the RLC damper is also investigated. The analysis and the effectiveness of the proposed scheme is verified with simulation results.
引用
收藏
页码：424 / 429
页数：6
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