Search results for " photovoltaic plant"

showing 4 items of 4 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
researchProduct

Comparison of power quality impact of different photovoltaic inverters- the viewpoint of the grid

2005

This paper presents the results of an experimental analysis performed with the aim of evaluating the effect of many photovoltaic plants on power quality of the grid. Several parameters as voltage and current distortion, flicker, voltage variations at fundamental frequency and power factor have been observed. The measured values have been compared with the limits reported in the standards and, when possibiIe, their dependence on the characteristics of the grid in terms of its impedance has been pointed out.

EngineeringSwitched-mode power supplybusiness.industryElectrical engineeringPower factorVoltage optimisationpower qualify distributed generation photovoltaic plantMaximum power point trackingSettore ING-IND/33 - Sistemi Elettrici Per L'EnergiaElectric power systemStand-alone power systemGrid-connected photovoltaic power systemElectronic engineeringbusinessNominal power (photovoltaic)2004 IEEE International Conference on Industrial Technology, 2004. IEEE ICIT '04.
researchProduct

Technical and economical comparison between different topologies of PV plant under mismatch effect

2014

This paper presents a technical and economical comparative analysis between two topology of photovoltaic plant. In particular the performances of series-parallel (SP) and total cross tied (TCT), topologies are taken into account, referring to a partially shaded photovoltaic 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…

PV plant topologyEngineeringtopologyeconomic evaluationtechnical-economical comparative analysiPV arraypartially shaded photovoltaic plantTransportationTopology (electrical circuits)GeneratorSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciNetwork topologyTVenergy productionpower generation economicComponent (UML)photovoltaic plant topologycostpower lossesElectronic engineeringeries-parallel topologyInverterTotal cross tiedmismatch effecttotal cross tied topologySPbusiness.industryPhotovoltaic systemArrayBiological system modelingTCT topology plantpower generation planningSwitcheReliability engineeringphotovoltaic power systemSP topology plantTCTInverterPv plantbusiness2014 Ninth International Conference on Ecological Vehicles and Renewable Energies (EVER)
researchProduct

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
researchProduct