Extension of the modified Newton method for radial distribution systems load flow

In this paper we develop and compare two different methods, based on the branch-oriented techniques, for the resolution of load flow in radial distribution systems. The former is the current summation method and the later is the modified Newton method. The extension of these methods is that the load shall be represented with its variation with respect to the voltage magnitude (constant power load, constant current load, constant admittance load). Our comparative study gives some tables and graphical plots of the convergence characteristics of the two methods