Approcci matriciali per lo studio a regime permanente di sistemi multiconduttore dissimmetrici

This PhD thesis addresses the steady-state modelling of multiconductor unbalanced systems. Nowadays electric energy plays a key role in the reduction of greenhouse gas emissions. In fact, the consumption electrification (e.g., electric vehicles, heat pumps, electric arc furnaces, etc.) combined with low carbon dioxide emission power plants (e.g., photovoltaic, wind, nuclear) can help in the mitigation of climate change. In this frame of reference, an accurate modelling of power systems could aid this process, by developing new algorithms that allow estimating the network behavior. Starting from the planning, moving to the design and up to the operation, models representing the power system with a higher accuracy can be useful tools in managing future networks. Indeed, they can assist the different players in order to have a higher efficiency power system, by increasing also the reliability and with a reduction in the costs. In the following different algorithms are presented, these methods are valid instruments to analyze the network operation. Four aspects are treated: the loadability of transmission lines, the electric line multiconductor modelling, the power flow computation and the fault regime assessment.