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Current improvement of a grid-connected photovoltaic system under unbalanced voltage conditions
Mirhosseini, Mitra; Pou Félix, Josep; Agelidis, Vassilios
Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica; Universitat Politècnica de Catalunya. TIEG - Grup d'Electrònica Industrial Terrassa
This paper discusses the performance of a large-scale grid-connected photovoltaic system (GCPS) under unbalanced voltage sag conditions in the grid. By applying the droop control to address the low-voltage-ride-through (LVRT) capability, the output currents are no longer sinusoidal due to the oscillations produced in the current references. To deal with this problem a moving average filter (MAF) technique is proposed. Beside this application, there are other advantages of applying the MAF which are described in this paper. Selected simulation results using MATLAB/Simulink for a 1-MV A GCPS confirm the effectiveness of the proposed method.
Peer Reviewed
Àrees temàtiques de la UPC::Enginyeria electrònica::Electrònica de potència
Photovoltaic power systems
Power electronics
Moving average filter
Photovoltaic system
Power system faults
Reactive power support
Instal·lacions fotovoltaiques
Electrònica de potència
Institute of Electrical and Electronics Engineers (IEEE)

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