Efficient load flow method for radial distribution feeders

Abstract

This study presents a simple and efficient solution of load flow in distribution systems characterised by their radial configuration and laterals. This iterative method, based on Kirchoff laws, have the merit to evaluate for each node both the voltage root mean square (rms) value and phase-angles. The phase-angles although of weak values become necessary in the reactive energy optimisation problem. To solve the lines with laterals, a simple technique of determining nodes belonging branches is given. The method, requires a few computational time and have solved successfully several line examples. The results obtained for the voltage magnitudes and deviation-angles are compared to those of authors having worked on the subject. © 2006 Asian Network for Scientific Information.