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Phase-Independent Reactive Power Compensation Based on Four-Wire Power Converter in the Presence of Angular Asymmetry between Voltage Vectors

Author

Listed:
  • Dariusz Zieliński

    (Department of Electrical Drives and Machines, Faculty of Electrical Engineering and Computer Science, Lublin University of Technology, 20-618 Lublin, Poland)

  • Bartłomiej Stefańczak

    (Department of Electrical Drives and Machines, Faculty of Electrical Engineering and Computer Science, Lublin University of Technology, 20-618 Lublin, Poland)

  • Konrad Jędrys

    (Department of Electrical Drives and Machines, Faculty of Electrical Engineering and Computer Science, Lublin University of Technology, 20-618 Lublin, Poland)

Abstract

The paper presents the reactive power compensation method that allows for reducing the active power flow even in the presence of angular asymmetry between voltage vectors of the utility grid. Reactive power compensation ensures the reduction of power transmission losses and therefore brings significant economic benefits to electricity consumers. The concept of the alternating current/direct current (AC/DC) converter for prosumer applications operating as a local reactive power compensator has been proposed. The system is driven by a multi-resonant algorithm, allowing for independent control of the reactive power in each phase. The proposed method was validated experimentally by using a prototype of the converter, programmable AC source, and grid impedance model. The method made it possible to cover the reactive power demand without unnecessary active power generation and thus to improve the efficiency of the analyzed prototype. This solution can be implemented particularly in radial grids and non-urban areas.

Suggested Citation

  • Dariusz Zieliński & Bartłomiej Stefańczak & Konrad Jędrys, 2022. "Phase-Independent Reactive Power Compensation Based on Four-Wire Power Converter in the Presence of Angular Asymmetry between Voltage Vectors," Energies, MDPI, vol. 15(2), pages 1-13, January.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:2:p:497-:d:722138
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