Alexandre SICCARDI will defend his PhD on Dec. 2nd, 2024.
Place : Amphi 6 Marie Curie - Campus de la Doua - 69100, Villeurbanne
Jury :
Rapporteurs :
Mme Suzanne LESECQ, Directrice de Recherche, CEA Grenoble
M. François GRUSON, Maitre de Conférences, Université de Lille, L2EP
Examinatrice :
Mme. Carole HENAUX, Professeure des Universités, Université de Montpellier, IES
Encadrement :
M. Charles JOUBERT, Professeur des Universités, Université Claude Bernard Lyon 1, Ampère, Directeur de thèse
M. Christian MARTIN, Professeur des Universités, Université Claude Bernard Lyon 1, Ampère, co-directeur de thèse
VENET Pascal, Professeur des Universités, Université Claude Bernard Lyon 1, Ampère
Invités:
M. Ali MAKK, Docteur, Directeur de Keep Motion
Abstract :
Electric mobility has raised technological constraints and challenges that were previously non-existent in industrial applications. Increased power density requirements have challenged the manufacturing methods of permanent magnet synchronous motors. Faced with these stakes, multiphase motors emerged as an effective solution for increasing powertrain power density, as well as being more resilient to faults. At the same time, the revolution in electric motors has led to the emergence of the concept of the integrated modular variable speed drive (IMMD). IMMDs enable the power density of the GMP to be increased and improve motor control and fault resistance.
This work, entitled Integrating a multiphase inverter into a synchronous motor: environmental constraint consideration and system optimization, highlights the benefits of IMMD in an eleven-phase, low-voltage, high-power synchronous motor. The motor’s coils are supplied independently by twenty-two single-phase inverters, and control is decentralized. Each inverter independently regulates the current in its phase and follows the speed reference. Based on existing work on IMMDs, a general method for designing and integrating modular electronics is proposed. This allows the power density of the IMMD to be optimized by studying the placement of electronic cards in the motor. A prototype of the IMMD is proposed, with its own cooling system, providing a maximum power of 132 kW in a volume of 4.75 dm3.
Keywords: Power electronics, IMMD, Multiphase, Electronics, Integration, Variable speed drive.