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Study on Energy Efficiency and Harmonic Emission of Photovoltaic Inverters

Author

Listed:
  • Krzysztof Chmielowiec

    (Department of Power Electronics and Energy Control Systems, Faculty of Electrical Engineering, Automatics, Computer Science and Biomedical Engineering, AGH University of Science and Technology, 30-059 Kraków, Poland)

  • Łukasz Topolski

    (Department of Power Electronics and Energy Control Systems, Faculty of Electrical Engineering, Automatics, Computer Science and Biomedical Engineering, AGH University of Science and Technology, 30-059 Kraków, Poland)

  • Aleks Piszczek

    (Department of Power Electronics and Energy Control Systems, Faculty of Electrical Engineering, Automatics, Computer Science and Biomedical Engineering, AGH University of Science and Technology, 30-059 Kraków, Poland)

  • Tomasz Rodziewicz

    (TAURON Dystrybucja S.A., 31-035 Kraków, Poland)

  • Zbigniew Hanzelka

    (Department of Power Electronics and Energy Control Systems, Faculty of Electrical Engineering, Automatics, Computer Science and Biomedical Engineering, AGH University of Science and Technology, 30-059 Kraków, Poland)

Abstract

The paper presents the results of an experimental study of 26 brand new photovoltaic (PV) inverters widely available for sale on the EU market; the study was conducted in 2021 by researchers at the AGH University of Science and Technology and Tauron Dystrybucja (Polish DSO). The purpose of the study was to compare and assess PV inverter performances in terms of their DC/AC conversion efficiencies, MPPT efficiencies, and harmonic current emissions. To examine the PV inverters, a laboratory test stand was prepared according to the standard EN 50530 and the technical report IEC/TR 61000-3-15. It was composed of a photovoltaic array simulator, a programmable regenerative AC voltage source, and a power analyzer. Each PV inverter was tested in various operating states determined by the DC voltage levels and the volume of active power generation. The results allowed for a benchmark assessment of PV inverters available on the market. The results showed how various energy efficiency indicators of individual PV inverters changed depending on their operating points. The results also revealed that, based on the performed harmonic emission tests, individual harmonics were within the normative requirements; however, in the case of several PV inverters, attention was drawn to the presence of relatively high switching frequency-related components exceeding permissible levels.

Suggested Citation

  • Krzysztof Chmielowiec & Łukasz Topolski & Aleks Piszczek & Tomasz Rodziewicz & Zbigniew Hanzelka, 2022. "Study on Energy Efficiency and Harmonic Emission of Photovoltaic Inverters," Energies, MDPI, vol. 15(8), pages 1-23, April.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:8:p:2857-:d:793374
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    References listed on IDEAS

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    1. Michał Jasiński & Tomasz Sikorski & Paweł Kostyła & Dominika Kaczorowska & Zbigniew Leonowicz & Jacek Rezmer & Jarosław Szymańda & Przemysław Janik & Daniel Bejmert & Marek Rybiański & Elżbieta Jasińs, 2019. "Influence of Measurement Aggregation Algorithms on Power Quality Assessment and Correlation Analysis in Electrical Power Network with PV Power Plant," Energies, MDPI, vol. 12(18), pages 1-18, September.
    2. Syed Muhammad Ahsan & Hassan Abbas Khan & Akhtar Hussain & Sarmad Tariq & Nauman Ahmad Zaffar, 2021. "Harmonic Analysis of Grid-Connected Solar PV Systems with Nonlinear Household Loads in Low-Voltage Distribution Networks," Sustainability, MDPI, vol. 13(7), pages 1-23, March.
    3. Grzegorz Lew & Beata Sadowska & Katarzyna Chudy-Laskowska & Grzegorz Zimon & Magdalena Wójcik-Jurkiewicz, 2021. "Influence of Photovoltaic Development on Decarbonization of Power Generation—Example of Poland," Energies, MDPI, vol. 14(22), pages 1-20, November.
    4. Krzysztof Chmielowiec & Łukasz Topolski & Aleks Piszczek & Zbigniew Hanzelka, 2021. "Photovoltaic Inverter Profiles in Relation to the European Network Code NC RfG and the Requirements of Polish Distribution System Operators," Energies, MDPI, vol. 14(5), pages 1-24, March.
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    Cited by:

    1. Krzysztof Łowczowski & Jacek Roman, 2023. "Techno-Economic Analysis of Alternative PV Orientations in Poland by Rescaling Real PV Profiles," Energies, MDPI, vol. 16(17), pages 1-18, August.
    2. Peng Zhou & Yanliang Xu & Wenji Zhang, 2023. "Design Consideration on a Low-Cost Permanent Magnetization Remanufacturing Method for Low-Efficiency Induction Motors," Energies, MDPI, vol. 16(17), pages 1-22, August.

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