Modified power flow algorithm of distribution network based on forward / backward sweep method

A modified power flow algorithm of distribution network based on forward/backward sweep method is presented,which can deal with the weakly meshed network well.It takes two kinds of loop network connection modes into account,suitable to multi-loop networks.This algorithm unifies loop network treatment and PU bus treatment with Thevenin sensitivity impendence matrix,which simplifies the analysis process and improves greatly the algorithm efficiency.Theoretical analysis and calculative example show that the algorithm is fast,effective and in accord with the practical de-mands of distribution network analysis.