Small-signal stability for parallel-connected inverters in stand-alone AC supply systems

被引：503
|
作者：
Coelho, EAA
Cortizo, PC
Garcia, PFD
机构：
[1] Univ Fed Uberlandia, Sch Elect Engn, BR-38400902 Uberlandia, MG, Brazil
[2] Univ Fed Minas Gerais, Elect Engn Res & Dev Ctr, BR-31270901 Belo Horizonte, MG, Brazil
来源：
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS | 2002年 / 38卷 / 02期
关键词：
frequency and voltage droops; parallel connection; small-signal stability; voltage inverters;
D O I：
10.1109/28.993176
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper presents a small-signal analysis for parallel-connected inverters in stand-alone ac supply systems. The control technique of the inverters is based on frequency and voltage droops, which depends on the local variable measurements and does not need control interconnections. Simulation and experimental results show that the system is well represented by the small-signal model. Some root locus plots for the system are provided, which make the stability studies and design easier.
引用
收藏
页码：533 / 542
页数：10
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