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Performance of a Shunt Active Power Filter for Unbalanced Conditions Using Only Current Measurements

Author

Listed:
  • Saad F. Al-Gahtani

    (Electrical Engineering Department, King Khalid University, Abha, Asir 61421, Saudi Arabia)

  • R. M. Nelms

    (Electrical and Computer Engineering Department, Auburn University, Auburn, AL 36849, USA)

Abstract

Shunt active power filters (APFs) are used to address power quality issues such as harmonic distortion and power system imbalance. Many control systems for shunt APFs demand measurements of voltages and currents for the determination of instantaneous real and reactive power signals. From these signals, the reference currents of the shunt APF are calculated. A method of control for the APF shunt that only measures currents is proposed in this paper. The control method includes a modified technique to extract the positive and negative sequence components in the time domain. The reference currents in the shunt APF are calculated by the negative sequence components of the measured currents. Simulation and experimental results confirm the efficiency of this control scheme under ideal and non-ideal conditions.

Suggested Citation

  • Saad F. Al-Gahtani & R. M. Nelms, 2021. "Performance of a Shunt Active Power Filter for Unbalanced Conditions Using Only Current Measurements," Energies, MDPI, vol. 14(2), pages 1-20, January.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:2:p:397-:d:479231
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    Citations

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    Cited by:

    1. Mohammad Alathamneh & Haneen Ghanayem & Xingyu Yang & R. M. Nelms, 2022. "Three-Phase Grid-Connected Inverter Power Control under Unbalanced Grid Conditions Using a Time-Domain Symmetrical Components Extraction Method," Energies, MDPI, vol. 15(19), pages 1-16, September.
    2. Mohammad Alathamneh & Haneen Ghanayem & R. M. Nelms, 2022. "Bidirectional Power Control for a Three-Phase Grid-Connected Inverter under Unbalanced Grid Conditions Using a Proportional-Resonant and a Modified Time-Domain Symmetrical Components Extraction Method," Energies, MDPI, vol. 15(24), pages 1-23, December.

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