Modeling, Analysis, and Stabilization of Converter-Fed AC Microgrids With High Penetration of Converter-Interfaced Loads

被引：78

作者：

Radwan, Amr Ahmed A. ^{[1
]}

Mohamed, Yasser Abdel-Rady I. ^{[1
]}

机构：

[1] Univ Alberta, Dept Elect & Comp Engn, Edmonton, AB T6G 2V4, Canada

来源：

IEEE TRANSACTIONS ON SMART GRID | 2012年 / 3卷 / 03期

关键词：

Active damping; microgrids; distributed generation (DG); negative impedance; stability; DISTRIBUTION-SYSTEMS; STABILITY ANALYSIS; POWER;

D O I：

10.1109/TSG.2012.2183683

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：

This paper addresses ac microgrid stability under high penetration of converter-interfaced loads (CILs). According to the Nyquist admittance ratio criterion, destabilizing interaction dynamics are yielded among the interfacing voltage-source inverter (VSI) of the ac microgrid and CILs. Active stabilization techniques are proposed to maintain the overall system stability from the VSI side using admittance-based small signal analysis. Sensitivity and robustness analyses are presented to assess the dynamic coupling among active damping and voltage tracking controllers of the interfacing VSI. A complete Matlab/Simulink model of an ac microgrid with multiple CILs is used to demonstrate the effectiveness of the proposed active compensation techniques.

引用

页码：1213 / 1225

页数：13

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