Performance Evaluation of Three-Phase Grid-Connected Photovoltaic Inverters Using Electrolytic or Polypropylene Film Capacitors
| Autor: | Vassilios G. Agelidis, Josep Pou, B. Karanayil |
|---|---|
| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica, Universitat Politècnica de Catalunya. TIEG - Terrassa Industrial Electronics Group, Universitat Politècnica de Catalunya. (TIEG) - Terrassa Industrial Electronics Group |
| Rok vydání: | 2014 |
| Předmět: |
Capacitat elèctrica
Electrolytic capacitor Materials science Energies::Energia solar fotovoltaica [Àrees temàtiques de la UPC] Renewable Energy Sustainability and the Environment business.industry photovoltaic (PV) systems Photovoltaic system Enginyeria electrònica [Àrees temàtiques de la UPC] Electrical engineering metallized polypropylene film capacitor Photovoltaic power generation Capacitance Maximum power point tracking DC-BUS Film capacitor Hardware_GENERAL grid-connected inverters Grid-connected photovoltaic power system Inverter business Electric capacity Energia solar fotovoltaica |
| Zdroj: | Recercat. Dipósit de la Recerca de Catalunya Universitat Jaume I UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) |
| ISSN: | 1949-3037 1949-3029 |
| DOI: | 10.1109/tste.2014.2347967 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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