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Improving Power Quality by a Four-Wire Shunt Active Power Filter: A Case Study

Author

Listed:
  • Mihaela Popescu

    (Department of Electromechanics Environment and Applied Informatics, Faculty of Electrical Engineering, University of Craiova, 200585 Craiova, Romania)

  • Alexandru Bitoleanu

    (Department of Electromechanics Environment and Applied Informatics, Faculty of Electrical Engineering, University of Craiova, 200585 Craiova, Romania)

  • Mihaita Linca

    (Department of Electromechanics Environment and Applied Informatics, Faculty of Electrical Engineering, University of Craiova, 200585 Craiova, Romania)

  • Constantin Vlad Suru

    (Department of Electromechanics Environment and Applied Informatics, Faculty of Electrical Engineering, University of Craiova, 200585 Craiova, Romania)

Abstract

This paper presents the use of a three-phase four-wire shunt active power filter to improve the power quality in the Department of Industrial Electronics of a large enterprise from Romania. The specificity is given by the predominant existence of single-phase consumers (such as personal computers, printers, lighting and AC equipment). In order to identify the power quality indicators and ways to improve them, an A-class analyzer was used to record the electrical quantities and energy parameters in the point of common coupling (PCC) with the nonlinear loads for 27 h. The analysis shows that, in order to improve the power quality in PCC, three goals must be achieved: the compensation of the distortion power, the compensation of the reactive power and the compensation of the load unbalance. By using the conceived three-leg shunt active power filter, controlled through the indirect current control method in an original variant, the power quality at the supply side is very much improved. In the proposed control algorithm, the prescribed active current is obtained as a sum of the loss current provided by the DC voltage and the equivalent active current of the unbalanced load. The performance associated with each objective of the compensation is presented and analyzed. The results show that all the power quality indicators meet the specific standards and regulations and prove the validity of the proposed solution.

Suggested Citation

  • Mihaela Popescu & Alexandru Bitoleanu & Mihaita Linca & Constantin Vlad Suru, 2021. "Improving Power Quality by a Four-Wire Shunt Active Power Filter: A Case Study," Energies, MDPI, vol. 14(7), pages 1-20, April.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:7:p:1951-:d:528598
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    References listed on IDEAS

    as
    1. Mihaela Popescu & Alexandru Bitoleanu, 2019. "A Review of the Energy Efficiency Improvement in DC Railway Systems," Energies, MDPI, vol. 12(6), pages 1-25, March.
    2. Mihaela Popescu & Alexandru Bitoleanu & Constantin Vlad Suru & Mihaita Linca & Gheorghe Eugen Subtirelu, 2020. "Adaptive Control of DC Voltage in Three-Phase Three-Wire Shunt Active Power Filters Systems," Energies, MDPI, vol. 13(12), pages 1-24, June.
    3. Valery Dovgun & Sergei Temerbaev & Maxim Chernyshov & Viktor Novikov & Natalia Boyarskaya & Elena Gracheva, 2020. "Distributed Power Quality Conditioning System for Three-Phase Four-Wire Low Voltage Networks," Energies, MDPI, vol. 13(18), pages 1-19, September.
    4. David Lumbreras & Eduardo Gálvez & Alfonso Collado & Jordi Zaragoza, 2020. "Trends in Power Quality, Harmonic Mitigation and Standards for Light and Heavy Industries: A Review," Energies, MDPI, vol. 13(21), pages 1-24, November.
    5. Yap Hoon & Mohd Amran Mohd Radzi & Mohd Khair Hassan & Nashiren Farzilah Mailah, 2017. "Control Algorithms of Shunt Active Power Filter for Harmonics Mitigation: A Review," Energies, MDPI, vol. 10(12), pages 1-29, December.
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    Cited by:

    1. Ayesha Ali & Ateeq Ur Rehman & Ahmad Almogren & Elsayed Tag Eldin & Muhammad Kaleem, 2022. "Application of Deep Learning Gated Recurrent Unit in Hybrid Shunt Active Power Filter for Power Quality Enhancement," Energies, MDPI, vol. 15(20), pages 1-21, October.
    2. Michał Gwóźdź, 2022. "The Application of Tuned Inductors in Electric Power Systems," Energies, MDPI, vol. 15(22), pages 1-13, November.

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