Adequação do método da soma das correntes considerando elementos shunts de barra e de ramos de redes de distribuição

Abstract

The modeling of electrical power distribution networks usually considers the network topology as consisting only of series branch elements. This characteristic underlies the classical algorithms for calculating the load flow of distribution networks, such as the Current Sum Method (CSM), so that the inclusion of shunts such as voltage regulators, capacitor banks or reactors and capacitive effects of feeders requires adaptations to the traditional methods. Although the formulation of the Power Sum Method considering shunts has already been addressed in the literature, the equivalent for CSM needs to be developed. This work aims to propose an adaptation of the Current Sum Method for load flow analysis in distribution networks, with the inclusion of reactive shunt elements of buses and branches of the network. The work contemplates the reformulation of the classic MSI with the incorporation of new terms to the equations, as well as the application of the computational implementation of the proposal in test networks for performance comparison and validation of the results with already consolidated solution methods. Case analysis demonstrates that the new approach allows representing the effects of reactive elements on voltage profiles and system losses equally accurately. Thus, this work contributes with a model applicable to the simulation requirements of actual distribution networks, with potential for adaptation to scenarios with distributed generation and control devices.