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Performance Evaluation of Three-Phase Grid-Connected Photovoltaic Inverters Using Electrolytic or Polypropylene Film Capacitors

descriptionPublicationkeyboard_double_arrow_right Article , Journal 01 Oct 2014 Spain Publisher:Institute of Electrical and Electronics Engineers (IEEE)Journal:IEEE Transactions on Sustainable Energy, volume 5, pages 1,297-1,306 (issn: 1949-3029, eissn: 1949-3037,

Authors: Karanayil, Baburaj; Agelidis, Vassilios; Pou Félix, Josep;

doi: 10.1109/tste.2014.2347967

handle: 2117/25059

Performance Evaluation of Three-Phase Grid-Connected Photovoltaic Inverters Using Electrolytic or Polypropylene Film Capacitors

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Abstract

In grid-connected photovoltaic (PV) power stations, improving the life expectancy and long-term reliability of three-phase PV inverters is urgently needed to match the significantly higher lifetime of the PV modules. A key contribution toward such improvement is replacing the conventional electrolytic film capacitors by metallized polypropylene film ones. This paper presents a detailed evaluation of a conventional three-phase grid-connected PV inverter performance when replacing the electrolytic capacitor with a minimum value of metallized polypropylene film capacitor. Although the minimum dc bus capacitance leads to higher voltage ripples, such ripples were found to be within acceptable limits to operate the inverter satisfactorily. Simulation and experimental results are presented for a 5-kW grid-connected inverter prototype with a nominal dc voltage of 457 V to confirm the theoretical considerations. Peer Reviewed

Country

Spain

Related Organizations

Universitat Politècnica de Catalunya
Spain
Universitat Polite`cnica de Catalunya
Spain
UNSW Sydney
Australia

Keywords

Capacitat elèctrica, :Energies::Energia solar fotovoltaica [Àrees temàtiques de la UPC], photovoltaic (PV) systems, :Enginyeria electrònica [Àrees temàtiques de la UPC], metallized polypropylene film capacitor, Photovoltaic power generation, Electrolytic capacitor, grid-connected inverters, Àrees temàtiques de la UPC::Enginyeria electrònica, Àrees temàtiques de la UPC::Energies::Energia solar fotovoltaica, Electric capacity, Energia solar fotovoltaica

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	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Top 10%
	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Top 10%