Three-Phase Unbalanced Radial Distribution Load Flow Method

This paper deals with a new, efficient power flow method for unbalanced radial distribution systems based on improved backward/forward sweep (BFS) algorithm. This proposed method utilizes simple and flexible numbering scheme and takes full advantage of the radial structure of distribution systems. This method is tested on an 8-bus Three-phase unbalanced distribution system. The numerical test proves this method is very robust and has excellent convergence characteristics.