Stability Analysis of Load Sharing Control for Distributed Generation Systems


Mohammad N. Marwali, Jin-Woo Jung and Ali Keyhani
Ohio State Univ, Columbus, OH, USA ;

This paper appears in : IEEE Transactions on Energy Conversion 
Date: September 2007  


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.