A SIMULATION STUDY OF THE EFFICIENCY OF HIGH VOLTAGE α-Si STAND-ALONE PV INSTALLATIONS

Authors

  • Carlos Armenta-Deu Grupo de Energías Renovables. Facultad de Ciencias Físicas. Universidad Complutense de Madrid, 28040, Madrid, Spain http://orcid.org/0000-0002-8421-6540
  • David Arroyo del Saz Facultad de Ciencias Físicas. Universidad Complutense de Madrid, 28040, Madrid, Spain

DOI:

https://doi.org/10.37591/joaest.v12i2.5604

Abstract

The paper analyzes different configurations, direct-PV, PV-battery, either with PWM or MPP
regulator, and hybrid-PV, of stand-alone PV installation operating with high voltage α-Si panels that
supplies energy to a DC-AC external circuit. Global efficiency is determined as a function of voltage
conversion ratio and individual element efficiency. The paper concludes that direct-PV is the most
efficient mode with average performance ratio (PR) of 92.2% followed by PV-battery with MPPT,
68.3% of efficiency, and PWM regulator with 40.3% efficiency. Hybrid mode only achieves 30.3%. The
analysis of results shows PV-battery with PWM is suitable for DC applications while hybrid mode is
better for AC ones. PV-battery mode with MPP regulator can be used in AC or DC applications.
Intermediate voltage ratio from 24 VDC to either 110 V or 220 V represents the best option among the
three analyzed, 12 V, 24 V and 48 V.

Author Biographies

  • Carlos Armenta-Deu, Grupo de Energías Renovables. Facultad de Ciencias Físicas. Universidad Complutense de Madrid, 28040, Madrid, Spain

    Dpt. of Matter Structure, Thermal Physics and Electronics

    Faculty of Physics

    Renewable Energy Group

    Head of Unit

  • David Arroyo del Saz, Facultad de Ciencias Físicas. Universidad Complutense de Madrid, 28040, Madrid, Spain

    Dpt. of Matter Structure, Thermal Physics and Electronics

    Faculty of Physics

    Renewable Energy Group

    Post-graduate student

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Published

2021-09-21

Issue

Vol. 12 No. 2 (2021)

Section

Research Article

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