Performance Improvement of LCL-Filter-Based Grid-Connected Inverters Using PQR Power Transformation

被引：89

作者：

Jeong, Hea-Gwang ^{[1
]}

Lee, Kyo-Beum ^{[1
]}

Choi, Sewan ^{[2
]}

Choi, Woojin ^{[3
]}

机构：

[1] Ajou Univ, Div Elect & Comp Engn, Suwon 443749, South Korea

[2] Seoul Natl Univ Educ, Dept Control & Instrumentat Engn, Seoul 139743, South Korea

[3] Soongsil Univ, Dept Elect Engn, Seoul 156743, South Korea

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2010年 / 25卷 / 05期

关键词：

Harmonics; LCL filter; power theory; resonance; three-phase pulsewidth modulation (PWM) inverter; CURRENT CONTROLLER; 3-PHASE; SYSTEMS; DESIGN;

D O I：

10.1109/TPEL.2009.2037225

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 demand for three-phase pulsewidth modulation (PWM) inverters in applications such as power control or grid connecting has been on the increase in recent years. Such inverters are connected to the grid via an L filter or an LCL filter to reduce the harmonics caused by the switching. An LCL filter can reduce the harmonics induced by low switching frequency and generates a satisfactory level of grid-side current using a relatively low inductance, as compared to an L filter. The additional poles introduced by the LC part induces resonance in the system, leading to stability problems; this paper presents a compensation method using power theory to improve these issues, so that the performance of the designed LCL filter system can be improved. The effectiveness of the proposed algorithm is verified by simulations and experiments.

引用

页码：1320 / 1330

页数：11

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