Ochoa, Luis F. [UNESP]Padilha-Feltrin, Antonio [UNESP]2014-05-272014-05-272004-12-012004 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America, p. 173-178.http://hdl.handle.net/11449/67976Three-phase three-wire power flow algorithms, as any tool for power systems analysis, require reliable impedances and models in order to obtain accurate results. Kron's reduction procedure, which embeds neutral wire influence into phase wires, has shown good results when three-phase three-wire power flow algorithms based on current summation method were used. However, Kron's reduction can harm reliabilities of some algorithms whose iterative processes need loss calculation (power summation method). In this work, three three-phase three-wire power flow algorithms based on power summation method, will be compared with a three-phase four-wire approach based on backward-forward technique and current summation. Two four-wire unbalanced medium-voltage distribution networks will be analyzed and results will be presented and discussed. © 2004 IEEE.173-178engDistribution line modelsDistribution networksLossesThree-phase power flowUnbalanceAlgorithmsElectric lossesElectric potentialElectric power systemsElectric wireIterative methodsMathematical modelsPower flow algorithmElectric power distributionTrabalho apresentado em evento10.1109/TDC.2004.1432372WOS:000228358400032Acesso aberto2-s2.0-22744450921