Advances in Power Flow Analysis of Power System

Dear Colleagues,

It is our pleasure to present a Special Issue of Applied Sciences on "Advances in Power Flow Analysis of Power System", and to invite concerned authors to upload original contributions on the correlated topics.

Outstanding to the restructuring of electric sector, generation and commercialization activities became market activities, whereas transmission and distribution activities persist as regulated monopolies. Accordingly, in each country, the regulators have established rules concerning the adequacy of the transmission systems. The delineation of these rules has been a hard task since there are many agents operating in the electricity system. At generation, one can find large power plants as well as special producers (cogeneration facilities, photovoltaic power plants, wind farms, small hydro power plants). The distributed generation, manly connected to the MV networks, has stretched its effect to the LV distribution networks. In addition to the type of classical loads, electric vehicles (EV) are an emergent kind of loads, that start to have expression, connected to electric greed, influencing the operation of transmission systems. All this contributes for the emergence of new uncertainty sources inside the electric systems, which must be accounted in the analysis of power systems. In this framework, power flow calculations are one of the most significant and capable tools for power system planning and operation. The existence of such uncertainties has led, over the time, to the development of power flow models that are able to account for the existent uncertainties such as the probabilistic power flow (PPF) or the fuzzy power flow (FPF). The study of power flow also is necessary for further analysis such transient stability, dynamic stability or emergency states. Considering the current challenges imposed to the electrical power system, it is important to check the advances in power flow analysis of power systems.

Dr. Eduardo Miguel Teixeira Mendonça Gouveia
Prof. Dr. Adelino J. C. Pereira
Prof. Dr. Rita Manuela Monteiro Pereira
Prof. Dr. Fernando Pires Maciel Barbosa
Guest Editors

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