Search results for "Photovoltaic plants"

showing 3 items of 3 documents

High Frequency Model of PV Systems for the Evaluation of Ground Currents

2012

A high frequency model of a photovoltaic (PV) plant is developed and analysed to investigate the common mode (CM) currents circulating through the ground connections of the plant. The modelling method is based on the measurement of the impedance frequency response of photovoltaic module and on a high frequency representation of the power conversion unit. An overall lumped parameters circuit model is obtained and then implemented in PSpice. The CM leakage currents are evaluated by simulation.

Common mode currents.High frequency modelling Parameters identification Photovoltaic plants Common mode currents.Renewable Energy Sustainability and the EnvironmentComputer sciencebusiness.industryPhotovoltaic systemElectrical engineeringEnergy Engineering and Power TechnologySettore ING-IND/31 - ElettrotecnicaPhotovoltaic plantsElectrical and Electronic EngineeringbusinessHigh frequency modellingParameters identificationRenewable Energy and Power Quality Journal
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Evaluation of ground currents in a PV system with high frequency modeling

2018

In this work a high frequency model of a photovoltaic (PV) plant is identified and implemented aiming to investigate the common mode (CM) currents circulating through the ground connections of the plant. From the identification of the impedance obtained by frequency response of photovoltaic module and by a suitable of the power conversion unit, an equivalent high frequency circuit representation has been developed. The lumped parameters circuit model is implemented in PSpice environment to obtain the CM leakage currents. Harmonics at frequencies multiple of the switching frequency and a strong resonance at about 12 MHz are detected.

Common mode currents.Settore ING-IND/31 - ElettrotecnicaParameter identificationRenewable Energy Sustainability and the EnvironmentPhotovoltaic plantsEnergy Engineering and Power TechnologyHigh frequency modellingCommon mode currentPhotovoltaic plant
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Energie rinnovabili e trasformazioni territoriali: il caso del fotovoltaico in Sicilia

2023

This paper intends to deal with the issue of territorial transformations that have taken place in the last two decades in Sicily, after the construction of hundreds of small, medium and large photovoltaic plants. These plants were built often causing profound landscape changes.

Settore M-GGR/02 - Geografia Economico-PoliticaSicily photovoltaic plants landscape
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