Title: Contribution to the performance optimisation of single-phase inverter with pre-calculated switching

Authors: Kamel Laidi; Ouahid Bouchhida; Abdelaziz Ferdjouni

Addresses: Laboratoire des Systèmes Electriques et Télécommunications, Université Saad Dahlab, Route de Soumaa 09000 BP 270, Blida, Algéria; Laboratoire de Recherche en Electrotechnique et en Automatique, Université Yahia Fares, Ain D'heb, 26000, Medea, Algéria. ' Laboratoire de Recherche en Electrotechnique et en Automatique, Université Yahia Fares, Ain D'heb, 26000, Medea, Algéria. ' Laboratoire des Systèmes Electriques et Télécommunications, Université Saad Dahlab, Route de Soumaa 09000 BP 270, Blida, Algéria

Abstract: In this paper, a novel single phase inverter structure for pre-calculated switching using polarised capacitors as harmonics filter is proposed. This structure is developed to obtain infinite value for the input impedance to eliminate the current flow in the capacitor, and zero value for the output impedance to minimise the voltage drop. The single-phase inverter is associated with a modified passive LC1C2 filter to improve the voltage quality delivered by the inverter and to minimise the losses caused by the filter. The switching angles are drawn by solving a non-linear equations system using genetic algorithms. Simulation results are given to illustrate the inverter performance, and experimental results based on digital signal processor (DSP) are presented to demonstrate the validity of our approach.

Keywords: single-phase inverters; harmonics reduction; switching angles; dSPACE kit DS1103; input output impedances; genetic algorithms; LC filters; modelling; performance optimisation; pre-calculated switching; polarised capacitors; voltage quality; simulation; digital signal processing; DSP.

DOI: 10.1504/IJMIC.2012.048638

International Journal of Modelling, Identification and Control, 2012 Vol.17 No.1, pp.43 - 54

Published online: 19 Aug 2012 *

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