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Home > Thèses et HDR > Thèses en 2019

06/12/2019 - Jérémie KREISS

by Laurent Krähenbühl - published on , updated on


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Mr Jérémie Kreiss defends his PhD on Dec. 06, 2019 at 10:00 AM.
Place : Marie Curie Library, INSA of Lyon.

Title: Control allocation for electrical engineering and power electronics

Jury :
Rapporteurs : MALABRE Michel, ZACCARIAN Luca
Examinateurs : LESECQ Suzanne, RIU Delphine
Directeur de thèse : LIN-SHI Xuefang
Co-encadrants de thèse : DELPOUX Romain, GAUTHIER Jean-Yves, TRÉGOUËT Jean-François

Abstract :
This thesis is about the use of control allocation theory in the field of electrical engineering and power electronics. It is composed of two parts. The first one is related to control allocation theory and the second one focuses on the control of a particular application: the parallel interconnection of DC/DC converters. The control allocation theory gives tools to design control laws for input redundant systems. However, current definitions about those systems suffer from a lack of uniformity. That is why the first part provides new definitions and characterisations of input redundant systems in order to take input and state constraints into account. Furthermore, the control allocation method named "geometric approach" is enhanced to deal with input constraints while designing the control law. Thanks to those contributions, it is shown in the second part that the system composed of the parallel interconnection of DC/DC converters to a single load is an input redundant system. On this system, some methods of the control allocation theory are used to design a controller with stability and performance guarantees. Simulations and experimentations are given to highlight those development.

Keywords :
control allocation theory, constraint management, constrained optimization, control of parallel DC/DC converters

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