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Power quality improvement using fuzzy logic controller for five-level shunt active power filter under distorted voltage conditions

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Abstract

In this paper, a five-level inverter is used as a shunt active power filter (APF), taking advantages of the multilevel inverter such as low harmonic distortion and reduced switching losses. It is used to compensate reactive power and eliminate harmonics drawn from a thyristor rectifier feeding an inductive load (RL) under distorted voltage conditions. The APF control strategy is based on the use of self-tuning filters (STF) for reference current generation and a fuzzy logic current controller. The use of STF instead of classical extraction filters allows extracting directly the voltage and current fundamental components in the α-β axis without phase locked loop (PLL). The MATLAB fuzzy logic toolbox is used for implementing the fuzzy logic control algorithm. The obtained results show that the proposed shunt APF controller has produced a sinusoidal supply current with low harmonic distortion and in phase with the line voltage.

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Authors and Affiliations

  1. Department of Electrical Engineering, University of Djelfa, B.P.3117, Djelfa, 17000, Algeria

    Amar Benaissa

  2. SE Laboratory, University of Biskra, B.P.145, Biskra, 07000, Algeria

    Boualaga Rabhi

  3. ARHYS Laboratory, University of Biskra, B.P.145, Biskra, 07000, Algeria

    Ammar Moussi

Authors
  1. Amar Benaissa
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  2. Boualaga Rabhi
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  3. Ammar Moussi
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Correspondence to Amar Benaissa.

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Benaissa, A., Rabhi, B. & Moussi, A. Power quality improvement using fuzzy logic controller for five-level shunt active power filter under distorted voltage conditions. Front. Energy 8, 212–220 (2014). https://doi.org/10.1007/s11708-013-0284-4

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  • DOI: https://doi.org/10.1007/s11708-013-0284-4

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