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Experimental Study of an Inverter Control for Reactive Power Compensation in a Grid-Connected Solar Photovoltaic System Using Sliding Mode Control

Author

Listed:
  • Manuel Flota-Bañuelos

    (Renewable Energy Department, University of Yucatan, Merida 97000, Yucatan, Mexico)

  • María Espinosa-Trujillo

    (Industrial Division, Metropolitan Technological University, Merida 97279, Yucatan, Mexico)

  • José Cruz-Chan

    (Industrial Division, Metropolitan Technological University, Merida 97279, Yucatan, Mexico)

  • Tariq Kamal

    (School of Technology and Innovations, Electrical Engineering, University of Vaasa, 65200 Vaasa, Finland)

Abstract

In photovoltaic (PV) systems, inverters have an essential role in providing an energy supply to meet the demand with power quality. Inverters inject energy into the grid considering that a renewable source is available; however, during intermittent periods or in the absence of power generation, the inverter remains inactive, which decreases the performance of the PV system. One way to increase the operation of inverters is to operate them as Volt-Amps Reactive (VAR) compensators to generate reactive power in the absence of renewable sources. The paper presents the development of a control scheme that allows the PV system’s inverter to improve the power factor in the electrical system with or without PV power generation. The proposed control is based on using a sliding mode controller (SMC) current control loop and PI-based voltage control loop. The control scheme is developed in MATLAB/SIMULINK, and for real evaluation, a PV prototype is implemented. The control strategy efficiency is confirmed by the obtained results. The control scheme increases the practical utility of PV systems. Additionally, it improves the power factor in all cases during the injection of active power to the grid operating under intermittent conditions and/or in the absence of power generation.

Suggested Citation

  • Manuel Flota-Bañuelos & María Espinosa-Trujillo & José Cruz-Chan & Tariq Kamal, 2023. "Experimental Study of an Inverter Control for Reactive Power Compensation in a Grid-Connected Solar Photovoltaic System Using Sliding Mode Control," Energies, MDPI, vol. 16(2), pages 1-26, January.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:2:p:853-:d:1032668
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    References listed on IDEAS

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    1. Moath Alqatamin & Michael L. McIntyre, 2022. "Nonlinear Self-Synchronizing Current Control for Grid-Connected Photovoltaic Inverters," Energies, MDPI, vol. 15(13), pages 1-17, July.
    2. María Reveles-Miranda & Diego Fernando Sánchez-Flórez & José Ricardo Cruz-Chan & Eduardo Ernesto Ordoñez-López & Manuel Flota-Bañuelos & Daniella Pacheco-Catalán, 2018. "The Control Scheme of the Multifunction Inverter for Power Factor Improvement," Energies, MDPI, vol. 11(7), pages 1-17, June.
    3. Manuel Flota-Bañuelos & Homero Miranda-Vidales & Bernardo Fernández & Luis J. Ricalde & A. Basam & J. Medina, 2022. "Harmonic Compensation via Grid-Tied Three-Phase Inverter with Variable Structure I&I Observer-Based Control Scheme," Energies, MDPI, vol. 15(17), pages 1-19, September.
    4. Agata Szultka & Seweryn Szultka & Stanislaw Czapp & Robert Karolak & Marcin Andrzejewski & Jacek Kapitaniak & Marcin Kulling & Jan Bonk, 2022. "Voltage Profiles Improvement in a Power Network with PV Energy Sources—Results of a Voltage Regulator Implementation," Energies, MDPI, vol. 15(3), pages 1-14, January.
    5. Kolhe, Mohan Lal & Rasul, M.J.M.A., 2020. "3-Phase grid-connected building integrated photovoltaic system with reactive power control capability," Renewable Energy, Elsevier, vol. 154(C), pages 1065-1075.
    6. Zekun Sun & Hao Liu & Yueming Ding & Haopeng Luo & Ting Liu & Qinyue Tan, 2022. "Collaborative Control Strategy of Power Quality Based on Residual Capacity of Photovoltaic Inverter," Energies, MDPI, vol. 15(21), pages 1-16, October.
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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.

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