Article | REF: D3168 V1

Association of cell-switching - Synthesis elements for converters

Authors: Henri FOCH, Philippe LADOUX, Hubert PIQUET

Publication date: May 10, 2011, Review date: April 17, 2015

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ABSTRACT

Cell-switching is an energy transfer supervisory body, which allows the interconnection of dipoles assimilable to sources of a complementary nature. To cover a broader set of specifications concerning the conversion of electrical energy, the potential associations of switching cells are discussed. The functional properties, particularly in the field of control and that of obtaining reversibility properties, are thereby broadened. The association rules of switching cells are discussed and the mechanism by which associations inherit the properties of the cells is presented. However, improving performance by increasing the controlled power can only be achieved by undertaking certain precautions.

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AUTHORS

  • Henri FOCH: Former professor at the Institut national polytechnique de Toulouse

  • Philippe LADOUX: Professor at the Institut National Polytechnique de Toulouse, Plasma and Energy Conversion Laboratory (LAPLACE)

  • Hubert PIQUET: Professor at the Institut National Polytechnique de Toulouse, Plasma and Energy Conversion Laboratory (LAPLACE)

 INTRODUCTION

The files [D 3 075] "From dipoles to the switch cell", [D 3 076] "Functional synthesis of switches in the switch cell" and [D 3 077] "From managing switching constraints to soft switching" are devoted to introducing the concept of the switch cell, synthesizing this energy transfer control device and analyzing its operation from the point of view of switching mechanisms.

Still in the context of design, and to satisfy a wider range of electrical energy conversion specifications based on the cell concept (which only allows the interconnection of dipoles that can be assimilated to sources of complementary natures), we consider in this dossier [D 3 168] the possibilities offered by switching cell combinations. Converter combinations are the subject of [D 3 178] .

From the fundamental relations of a cell. Functional properties, particularly in the field of regulation (power exchange management and waveform control) and in that of obtaining reversibility properties, concerning both electrical quantities and power exchanges, are extended.

In fields where gains are quantitative, improving performance by increasing controlled power and obtaining controllable voltage and/or current ranges naturally requires certain precautions.

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Switching cell association