Technical and Economical Comparison between

This paper presents a technical and economical comparative analysis between two topology of photovoitaic plant. In particular the performances of series­parallel (SP) and total cross tied (TCT), topologies are taken into account, referring to a partially shaded photovoitaic plant. Thanks to a simulation model developed, in the paper the mismatch effects due to three different shading conditions, for SP and TCT topology plant, are quantified. Since the TCT solution, even though increase the energy production, raise the complexity of plants as well as their costs, an evaluation of the individual costs of each component of a SP and TCT plant topology, as PV modules, support structure, inverter, protection devices, cables and wiring, ordinary maintenance and so on, is carried out. Keywords-

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