Stability Analysis of Load Sharing Control for Distributed Generation Systems

Author

Marwali, Mohammad N. ; Jung, Jin-Woo ; Keyhani, Ali

Author_Institution

Liebert Corp., Delaware

Volume

22

Issue

3

fYear

2007

Firstpage

737

Lastpage

745

Abstract

This paper discusses the small-signal stability analysis of the combined droop and average power method for load sharing control of multiple distributed generation systems (DGS) in a stand-alone ac supply mode. The small-signal model is developed and its accuracy is verified from simulations of the original nonlinear model. It is shown that the small-signal model accurately predicts the stability of the parallel systems.

Keywords

distributed power generation; load regulation; nonlinear control systems; power distribution control; power system stability; distributed generation systems; load sharing control; small-signal model; stability analysis; stand-alone ac supply mode; Control systems; Distributed control; Power generation; Power generation economics; Power system modeling; Pulse width modulation converters; Pulse width modulation inverters; Reactive power control; Stability analysis; Voltage; Distributed generation systems (DGS); parallel operation; small-signal model; stability analysis; stand-alone; three-phase pulse width modulation (PWM) inverter;

fLanguage

English

Journal_Title

Energy Conversion, IEEE Transactions on

Publisher

ieee

ISSN

0885-8969

Type

jour

DOI

10.1109/TEC.2006.881397

Filename

4292193