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Proportional-Resonant Controller Structure with Finite Gain for Three-Phase Grid-Tied Converters

Author

Listed:
  • Marek Nowak

    (Faculty of Electrical and Computer Engineering, Rzeszow University of Technology, Al. Powstańców Warszawy 12, 35-959 Rzeszów, Poland)

  • Tomasz Binkowski

    (Faculty of Electrical and Computer Engineering, Rzeszow University of Technology, Al. Powstańców Warszawy 12, 35-959 Rzeszów, Poland)

  • Stanisław Piróg

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

Abstract

The paper presents the study of a three-phase system coupling a DC power source to a power grid. This study, based on an FPGA, implements a real-time control system and digital models of the power circuit. The proposed proportional–resonant (P+R) controller with a modified structure was part of the system, which can be used as an alternative controller to traditional ones, e.g., in photovoltaic systems. Due to difficulties in implementing resonant controllers, a P+R with a new structure using a PI controller was elaborated. With an appropriate approach to the generation of phase current patterns, it is possible to set the reactive current and, thus, compensate for the reactive power. The operation of the system for typical operating conditions (e.g., system startup, change in preset load) was characterized and compared with a classical solution using a PI controller.

Suggested Citation

  • Marek Nowak & Tomasz Binkowski & Stanisław Piróg, 2021. "Proportional-Resonant Controller Structure with Finite Gain for Three-Phase Grid-Tied Converters," Energies, MDPI, vol. 14(20), pages 1-17, October.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:20:p:6726-:d:657678
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    References listed on IDEAS

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    1. Chengbi Zeng & Sudan Li & Hanwen Wang & Hong Miao, 2021. "A Frequency Adaptive Scheme Based on Newton Structure of PRRC for LCL-Type Inverter Connected with Weak Grid," Energies, MDPI, vol. 14(14), pages 1-18, July.
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    Cited by:

    1. Muhammad Abubakar & Herwig Renner & Robert Schürhuber, 2023. "Development of a Novel Control Scheme for Grid-Following Converter under Asymmetrical Faults," Energies, MDPI, vol. 16(3), pages 1-22, January.
    2. Tomasz Binkowski & Marek Nowak & Stanisław Piróg, 2022. "Power Supply and Reactive Power Compensation of a Single-Phase Higher Frequency On-Board Grid with Photovoltaic Inverter," Energies, MDPI, vol. 15(7), pages 1-16, April.

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