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Modeling and simulation of a grid connected PV system based on the evaluation of main PV module parameters
Chouder, Aissa; Silvestre Bergés, Santiago; Sadaoui, Nawel; Rahmani, Lazhar
Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica; Universitat Politècnica de Catalunya. MNT - Grup de Recerca en Micro i Nanotecnologies
In this work we present a new method for the modeling and simulation study of a photovoltaic grid connected system and its experimental validation. This method has been applied in the simulation of a grid connected PV system with a rated power of 3.2 Kwp, composed by a photovoltaic generator and a single phase grid connected inverter. First, a PV module, forming part of the whole PV array is modeled by a single diode lumped circuit and main parameters of the PV module are evaluated. Results obtained for the PV module characteristics have been validated experimentally by carrying out outdoorI–Vcharacteristic measurements. To take into account the power conversion efficiency, the measured AC output power against DC input power is fitted to a second order efficiency model to derive its specific parameters.The simulation results have been performed through Matlab/Simulink environment. Results has shown good agreement with experimental data, whether for theI–Vcharacteristics or for the whole operating system. The significant error indicators are reported in order to show the effectiveness of the simulation model to predict energy generation for such PV system.
Peer Reviewed
Àrees temàtiques de la UPC::Energies::Energia solar fotovoltaica
Electric current converters
Photovoltaic power systems
Convertidors de corrent elèctric
Sistemes elèctrics de potència
Energia eòlica -- Conversió
Energia solar fotovoltaica

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