Transformerless micro-inverter for grid-connected photovoltaic systems
| Autor: | Renato Zampiroli de Medeiros, Lenon Schmitz, Arlan Luiz Bettiol, Gustavo Carlos Knabben, Denizar Cruz Martins, Odair Jose Custodio, Roberto F. Coelho |
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| Rok vydání: | 2017 |
| Předmět: |
business.industry
Computer science 020208 electrical & electronic engineering Photovoltaic system 0211 other engineering and technologies Electrical engineering 02 engineering and technology Converters Grid Solar micro-inverter Parasitic capacitance 021105 building & construction 0202 electrical engineering electronic engineering information engineering Lower cost business Leakage (electronics) Voltage |
| Zdroj: | 2017 52nd International Universities Power Engineering Conference (UPEC). |
| DOI: | 10.1109/upec.2017.8231946 |
| Popis: | The leakage currents caused by high-frequency common-mode (CM) voltage have become a major concern in transformerless photovoltaic (PV) inverters. This paper addresses to a review on dc-ac converters applied to PV systems that can avoid the circulation of leakage currents. Looking for a lower cost and higher reliability solution, a 250 W PV transformerless micro-inverter prototype based on the bipolar full-bridge topology was built and tested. As it is confirmed by experimental results, this topology is able to maintain the CM voltage constant and prevent the circulation of CM currents through the circuit. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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