Title: Optimal tuning of a fuzzy logic-based single-phase active power filter via the Nelder-Mead method

Authors: Carlo Cecati, Antonio Dell'Aquila, Agostino Lecci, Marco Liserre

Addresses: Dipartimento di Ingegneria Elettrica e dell'Informazione, Universita dell'Aquila, Monteluco di Roio, 67040 L'Aquila, Italy. ' Dipartimento di Elettrotecnica ed Elettronica, Politecnico di Bari, Via Orabona, 4 70125 Bari, Italy. ' Dipartimento di Elettrotecnica ed Elettronica, Politecnico di Bari, Via Orabona, 4 70125 Bari, Italy. ' Dipartimento di Elettrotecnica ed Elettronica, Politecnico di Bari, Via Orabona, 4 70125 Bari, Italy

Abstract: This paper describes an optimisation method for fuzzy logic-based single-phase active power filters (APFs). A two-step optimisation technique using the Nelder-Mead simplex (or Amoeba) method has been adopted for the real-time tuning of the controller. Simulations and experimental results obtained with a low cost microcontroller (SH7045) demonstrate the capability of the system to achieve fast convergence rate, power factor correction and low harmonics content.

Keywords: active power filters; fuzzy logic; fuzzy control; optimal tuning; half H-bridge; switched capacitors; nonlinear optimisation; microcontrollers; fast convergence rate; power factor correction; low harmonics content.

DOI: 10.1504/IJCAT.2006.011140

International Journal of Computer Applications in Technology, 2006 Vol.27 No.2/3, pp.144 - 152

Published online: 19 Oct 2006 *

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