New Active Damping Strategy for LCL-Filter-Based Grid-Connected Inverters with Harmonics Compensation

被引：17
|
作者：
Hu, Guozhen [1 ]
Chen, Changsong [2 ]
Duan Shanxu [2 ]
机构：
[1] WuHan Text Univ, Dept Elect & Elect Eng, Wuhan, Peoples R China
[2] Huazhong Univ Sci & Technol, Dept Elect & Elect Eng, Wuhan 430074, Peoples R China
来源：
JOURNAL OF POWER ELECTRONICS | 2013年 / 13卷 / 02期
关键词：
Active damping; Grid-connected inverter; Harmonics; LCL; PWM RECTIFIERS; RESONANCE; DESIGN;
D O I：
10.6113/JPE.2013.13.2.287
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：
The use of LCL filters in pulse width modulation voltage source converters is a standard solution for providing proper attenuation of high-order grid-current harmonics. However, these filters can cause the undesired effect of resonance. This paper proposes an active damping strategy with harmonics compensation. It can alleviate the harmonics around the resonance frequency caused by the LCL filters. The proposed strategy is attractive since it is simple, does not depend on grid parameters and does not increase the number of sensors. Simulation and experimental results verify the effectiveness of the proposed active damping strategy.
引用
收藏
页码：287 / 295
页数：9
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