Overview
ABSTRACT
This article on commutation sets out a systematic approach oriented towards the synthesis of switches in a switching cell used to perform a controlled transfer of energy between two complementary energy sources. An introduction to the basic notions of commutation, the notions necessary for implementing a "controlled" switching cell while complying with the fundamental causality (the relationship between causes and effects) between the switches is presented. It will then focus on the functional synthesis of the cell's switches. Ultimately all the cell’s switching mechanisms are determined and characterized qualitatively.
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Read the articleAUTHORS
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Henri FOCH: Former Professor at the Institut National Polytechnique de Toulouse, Laboratoire d'Électrotechnique et d'Électronique Industrielle (LEEI)
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Michel METZ: Professor Emeritus, Institut National Polytechnique de Toulouse, LEEI
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Thierry MEYNARD: CNRS Research Director, LEEI
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Hubert PIQUET: Professor at the Institut National Polytechnique de Toulouse, LEEI
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Frédéric RICHARDEAU: CNRS Research Fellow, LEEI - with the collaboration of Guillaume GATEAU, Senior Lecturer, INPT, LEEI, Philippe LADOUX, Professor, INPT, LEEI, Emmanuel SARRAUTE, Senior Lecturer, IUFM Toulouse, LEEI, Henri SCHNEIDER, Senior Lecturer, INPT, LEEI and Christophe TURPIN, CNRS Research Fellow. - Since January 2007, LEEI has been part of LAPLACE (Plasma and Energy Conversion Laboratory).
INTRODUCTION
This file follows on from the
In this dossier on switching, we propose a systematic approach oriented towards synthesizing the switches of a switching cell used to perform a controlled energy transfer between two complementary energy sources. We study the links between static switch characteristics and the intrinsic reversibility of the sources, on the one hand, and between dynamic characteristics and energy exchange management, on the other.
We first show, in paragraph 1 , that the requirement for "fast" switching of the cell's switches (a few tens of nanoseconds to a few microseconds depending on electronic switch structures) makes any attempt at complementary switching of their resistivity extremely delicate, if not dangerous. Indeed, due to the unavoidable dispersion of delays in the control and in the switches themselves (intrinsic delays and thresholds), the simultaneous conduction or blocking, even fleeting, of both switches is likely to cause an unacceptable overcurrent or overvoltage. Paragraph 1 therefore deals with the basic principles of switching that need to be understood in order to implement a "controlled" switching cell, while respecting the fundamental causal relationships between the switches. Based on these principles, paragraph
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Functional synthesis of switches in the switchgear cell