State estimation algorithm for radial distribution networks

State estimation is a basic function, which results are used in almost all other functions for the analysis, management and planning of distribution networks. The paper describes the process of load calibration that is one of the basic steps in the process of state estimation in the distribution network. Algorithm for state estimation of a radial distribution network used in this paper is based on a modification of the algorithm for load flow calculation. For the calculation of load flow of radial distribution networks “backward-forward” algorithm was used. The developed application for the state estimation is used for state estimation of a real radial distribution network.