rita mbayed contribution to the control of the hybrid excitation

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  • Laboratoire SATIE - UCP/UMR 8029, 1 rue dEragny, 95031 Neuville sur Oise France

    Anne 2012

    UNIVERSITE DE CERGY PONTOISE

    THESE

    Prsente pour obtenir le grade de

    DOCTEUR DE LUNIVERSITE DE CERGY PONTOISE

    Ecole doctorale: Sciences et Ingnierie Spcialit: Gnie Electrique

    Soutenance publique prvue le 12 Dcembre 2012

    Par

    Rita MBAYED

    Contribution to the Control of the Hybrid Excitation Synchronous Machine for Embedded Applications

    JURY

    Rapporteurs : Prof. Grard CHAMPENOIS Universit de Poitiers Prof. Eric SEMAIL Ecole Nationale d'Arts et Mtiers

    ParisTech

    Examinateurs : Prof. Francis LABRIQUE Universit Catholique de Louvain Prof. Mohamed GABSI Ecole Normale Suprieure Cachan Dr. Vincent LANFRANCHI Universit de Technologie de

    Compigne

    Directeur de thse : Prof. Eric MONMASSON Universit de Cergy Pontoise Co-directeurs : Prof. GeorgesSALLOUM Universit Libanaise

    Dr. Lionel VIDO Universit de Cergy Pontoise

  • iii

    The secret is comprised in three words: Work, finish, publish.

    Michael Faraday

    Ere many generations pass, our machinery will be driven by a

    power obtainable at any point of the universe. This idea is not

    novel. Men have been led to it long ago by instinct or reason; it

    has been expressed in many ways, and in many places, in the

    history of old and new. We find it in the delightful myth of

    Antheus, who derives power from the earth; we find it among the

    subtle speculations of one of your splendid mathematicians and

    in many hints and statements of thinkers of the present time.

    Throughout space there is energy. Is this energy static or kinetic?

    If static our hopes are in vain; if kinetic - and this we know it is,

    for certain - then it is a mere question of time when men will

    succeed in attaching their machinery to the very wheelwork of

    nature.

    Nikola Tesla, "Experiments with alternate currents of high

    potential and high frequency", February 1892.

  • Contribution to the Control of the HESM for Embedded Applications

    v

    Abstract

    This thesis is a contribution to the control of the Hybrid Excitation Synchronous Machine (HESM) in embedded applications. The HESM combines the advantages of the Permanent Magnets (PM) machine and the wound rotor machine. The excitation flux in this machine is produced by two different sources: the PMs and a DC field winding that is placed at the stator to preserve a brushless structure. The latter source is used to control the flux in the air gap. The machine model is based on a Park model and it takes into account the iron losses and the magnetic circuit saturation effect. The electric parameters of the laboratory prototype are identified. The machine is controlled in generator mode and motor mode. In power generation system, the study treats in particular the aircraft power supply in more electric aircrafts. Two distribution networks are studied: High voltage variable frequency network and high voltage DC network. In the latter case, the HESM is coupled to a diode bridge rectifier. In both cases, the control aims to maintain the output voltage magnitude equal to its reference via action on the field current only. The control is scalar. Simulation with Matlab/Simulink and experiments validate the approach. For the motor mode, the attention is paid to the electric propulsion in an electric vehicle. An optimal current control with minimal losses is elaborated. The copper losses are considered in a first place. Iron losses are added next. Finally, the optimization problem is extended and it includes the losses due to the inverter and the chopper. Analytical expressions of the reference armature and field currents are computed using extended Lagrange multiplier method (Kuhn-Tucker conditions). Simulation with Matlab/Simulink software proves that the analytical solution yields indeed to the current combination that guarantees the minimal losses over the New European Driving Cycle.

    Keywords: Hybrid excitation synchronous machine; control; optimization; embedded application; aircraft; electric vehicle.

    Rsum

    Le travail prsent dans cette thse est une contribution la commande de la Machine Synchrone Double Excitation (MSDE) pour des applications embarques. La MSDE allie les avantages de la machine synchrone aimants permanents et la machine synchrone rotor bobin. Le flux dexcitation dans cette machine est gnr par deux sources : les aimants permanents et un enroulement qui est plac au stator afin dviter les contacts glissants. Cette dernire source permet de rgler le flux dans lentrefer. Le modle de la machine est bas sur un modle de Park et prend en considration les pertes fer et la saturation des circuits magntiques. Les paramtres du prototype existant au laboratoire ont t identifis. La commande de la MSDE est effectue en deux modes : gnrateur et moteur. En gnratrice, lapplication vise est la gnration lectrique en avionique. Deux rseaux de distribution sont traits : Rseau haute tension et frquence variable et rseau haute tension DC. Dans ce dernier cas, la MSDE est associe un pont redresseur diodes. Dans les deux cas, la commande est labore dans le but de maintenir lamplitude de la tension constante via le control du courant dexcitation uniquement. Le control est scalaire. Lapproche est valide par simulation avec Matlab/Simulink et par exprimentation. Pour le mode moteur, lapplication vise est la propulsion dans un vhicule lectrique. Une commande optimale des courants est tudie en vue de minimiser les pertes. Les pertes joules sont considres premirement. Ensuite, les pertes fer sont ajoutes. Finalement, le problme de minimisation est tendu pour inclure les pertes dues londuleur et au hacheur. Loptimisation par la mthode des multiplicateurs de Lagrange (Kuhn-Tucker conditions) est utilise pour trouver des expressions analytiques des courants statoriques et inducteur optimaux. Des simulations avec Matlab/Simulink prouvent que la solution obtenue est celle qui assure les pertes minimales tout au long du nouveau cycle de conduite europen.

    Mots-cls : Machine synchrone double excitation ; commande ; optimisation ; applications embarques ; avionique ; vhicule lectrique.

  • Contribution to the Control of the HESM for Embedded Applications

    vii

    Preface

    The work presented in this thesis was accomplished at the SETE1 team, SATIE2 laboratory, Cergy Pontoise University. The experiments were performed at the SATIE laboratory, Ecole Normale Suprieure (ENS) Cachan. The research was carried out under the supervision of Prof. Eric Monmasson and Dr. Lionel Vido, both from SATIE, Cergy Pontoise University, and Prof. Georges Salloum from the Lebanese University.

    Firstly, my sincere gratitude goes to my supervisor Prof. Monmasson for his confidence, foremost, and his guidance. Despite the fact that my stay in France was relatively short and temporary, he was always aware of my progress, available to review my work and to suggest new prospects. I am honored to work under the supervision of such an exceptional person.

    Secondly, I would like to express my deepest recognition to my co-supervisor Prof. Salloum for his moral and professional support. I would not be here today without his devoted contribution. I would like to thank him as well for the effort he made to assure the best working conditions for me.

    I am also thankful to my second co-supervisor Dr. Lionel Vido for his kindness and his help, especially during my stay in France. I appreciate particularly the attention he pays to little details.

    I am grateful to Prof. Mohamed Gabsi, SATIE, ENS Cachan, for the interest he showed in my work and his helpful comments throughout the thesis stages.

    I would like to thank the assessment committee chairman Prof. Francis Labrique, SST/EPL, Universit Catholique de Louvain (UCL), and all the committee members: Prof. Gerard Champenois, LAII, Universit de Poitiers, Prof. Eric Semail, L2EP, Ecole Nationale d'Arts et Mtiers ParisTech, Prof. Mohamed Gabsi, SATIE, ENS Cachan, and Dr. Vincent Lanfranchi, LEC, Universit de Technologie de Compigne, who accepted to evaluate my work. The effort extended by Prof. Champenois and Prof. Semail to review the manuscript is much appreciated.

    Regards go to all the personnel of SATIE laboratory and my fellow PhD students for their help and friendly companionship.

    I particularly appreciate the encouragement of my colleagues, especially at the Lebanese University, Faculty of Engineering II, as well as my students along the past five years.

    Special thanks go to my friends, in Lebanon and in France, who were always there for me. I know that things would have been much harder without their continuous support.

    Finally, I want to thank my family: my father, my mother and my sister. They have patiently supported this endeavor. This achievement is theirs. I just want them to be proud of me.

    1 Systmes d'Energies pour les Transports et l'Environnement : Energy systems for transport and environment.

    2 Systmes et Applications des Technologies de lInformation et de lEnergie : Systems and Applications in Information and Energy Technologies

  • ix

    Table of contents

    Abstract ....................................................................................................................................... vRsum ........................................................................................................................................ vPreface ....................................................................................................................

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