Impedance Modeling and Stability Analysis of Single-Phase LCL-type Grid-Connected VSC Based on Harmonic Linearization

被引：3

作者：

Sun, Zheng ^{[1
]}

Sun, Yao ^{[1
]}

Lin, Jianheng ^{[1
]}

Xie, Shiming ^{[1
]}

Han, Hua ^{[1
]}

Wu, Zhenxi ^{[1
]}

机构：

[1] Cent South Univ, Sch Automat, Hunan Prov Key Lab Power Elect Equipment & Grid, Changsha, Peoples R China

来源：

2021 IEEE 12TH ENERGY CONVERSION CONGRESS AND EXPOSITION - ASIA (ECCE ASIA) | 2021年

基金：

国家重点研发计划;

关键词：

frequency-coupling effect; single-phase grid-connected VSC; impedance modeling; harmonic linearization;

D O I：

10.1109/ECCE-Asia49820.2021.9479465

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This paper presents a simple time-domain input impedance modeling method based on harmonic linearization for single-phase LCL-type grid-connected voltage-source converter (VSC). The physical meaning of this method is clear, and the series resistance of the LCL filter is considered in the modeling process, which is more realistic. In addition, the generalized Nyquist criterion is used to analyze the impact of the grid impedance on the stability of the single-phase VSC-grid system. Finally, simulations are conducted to verify the effectiveness of the proposed method and the correctness of theoretical analysis.

引用

页码：2143 / 2148

页数：6

共 14 条

[1] Low-frequency input impedance modeling of boost single-phase PFC converters [J].