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Modeling and testing of two-stage grid-connected photovoltaic micro-inverters

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  • Trujillo, C.L.
  • Santamaría, F.
  • Gaona, E.E.

Abstract

In this paper, the characteristics, design and control parameters of a 200 W micro-inverter, consisting of two conversion stages are presented; the first one is implemented by a push-pull converter, which provides galvanic insulation and adjusts the DC voltage from the photovoltaic panel to an appropriate voltage with the implementation of a current injected control. The second stage corresponds to a full bridge inverter SPWM with an average current control, which injects energy from the push-pull converter to the grid; it is synchronized with the grid and delivers the maximum power provided by the photovoltaic panel. Power is extracted through the Maximum Power Point Tracking Technique (MPPT). The micro-inverter is simulated and its behavior to irradiance variations is observed. Finally, the transient and stable responses of the implemented micro-inverter are presented. Stable and slightly underdamped output signals (voltage and current) are obtained under current panel variations.

Suggested Citation

  • Trujillo, C.L. & Santamaría, F. & Gaona, E.E., 2016. "Modeling and testing of two-stage grid-connected photovoltaic micro-inverters," Renewable Energy, Elsevier, vol. 99(C), pages 533-542.
  • Handle: RePEc:eee:renene:v:99:y:2016:i:c:p:533-542
    DOI: 10.1016/j.renene.2016.07.011
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    References listed on IDEAS

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    1. Makrides, George & Zinsser, Bastian & Norton, Matthew & Georghiou, George E. & Schubert, Markus & Werner, Jürgen H., 2010. "Potential of photovoltaic systems in countries with high solar irradiation," Renewable and Sustainable Energy Reviews, Elsevier, vol. 14(2), pages 754-762, February.
    2. Hassaine, L. & OLias, E. & Quintero, J. & Salas, V., 2014. "Overview of power inverter topologies and control structures for grid connected photovoltaic systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 30(C), pages 796-807.
    3. Liou, Hwa Meei, 2010. "Overview of the photovoltaic technology status and perspective in Taiwan," Renewable and Sustainable Energy Reviews, Elsevier, vol. 14(4), pages 1202-1215, May.
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    Cited by:

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    2. Kumar, Vinit & Singh, Mukesh, 2021. "Reactive power compensation using derated power generation mode of modified P&O algorithm in grid-interfaced PV system," Renewable Energy, Elsevier, vol. 178(C), pages 108-117.
    3. Mehedi, I.M. & Salam, Z. & Ramli, M.Z. & Chin, V.J. & Bassi, H. & Rawa, M.J.H. & Abdullah, M.P., 2021. "Critical evaluation and review of partial shading mitigation methods for grid-connected PV system using hardware solutions: The module-level and array-level approaches," Renewable and Sustainable Energy Reviews, Elsevier, vol. 146(C).
    4. Çelik, Özgür & Teke, Ahmet & Tan, Adnan, 2018. "Overview of micro-inverters as a challenging technology in photovoltaic applications," Renewable and Sustainable Energy Reviews, Elsevier, vol. 82(P3), pages 3191-3206.
    5. Giovanni Nobile & Ester Vasta & Mario Cacciato & Giuseppe Scarcella & Giacomo Scelba & Agnese Giuseppa Federica Di Stefano & Giuseppe Leotta & Paola Maria Pugliatti & Fabrizio Bizzarri, 2020. "Performance Assessment of Large Photovoltaic (PV) Plants Using an Integrated State-Space Average Modeling Approach," Energies, MDPI, vol. 13(18), pages 1-27, September.
    6. Amir, Asim & Amir, Aamir & Che, Hang Seng & Elkhateb, Ahmad & Rahim, Nasrudin Abd, 2019. "Comparative analysis of high voltage gain DC-DC converter topologies for photovoltaic systems," Renewable Energy, Elsevier, vol. 136(C), pages 1147-1163.

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