Einladung zum Vortrag im Kolloquium Technische Kybernetik

Modern control of electrical drives

Prof. Emmanuel Delaleau
Département de Mécatronique
Ecole Nationale d'Ingénieurs de Brest, Brest, France

    Zeit: Dienstag · 1. 2. 2005 · 16:00 Uhr
    Ort: Raum 9.31 · Pfaffenwaldring 9 · Campus Stuttgart-Vaihingen

Abstract

This lecture aims to present a complete overview of differential flatness applied to the control of electrical drives. The flatness property allows to develop nonlinear control of systems. Many technological systems share the structural property to be flat. The cases of direct current, permanent magnets synchronous and induction motors are investigated in details.
Three important aspects of the flatness based control design are important in the context of drive control: the possibility to naturally work with variable flux levels, the compatibility of the design with natural hierarchy of the models, and the use of load observers to achieve online trajectory replanification. Working at variable flux level allows to develop control that operates a motor with minimum losses. More classical control law of motors are designed in a natural separation of time scales between electrical and mechanical parts of the motors. This implies the possibility to upgrade more classical control schemes with flatness based control. To implement the energy optimization one needs to have a good estimation of the load undergone by the motor in order to calculate the flux reference trajectories. This leads to the recent concept of online trajectory replanification.

Biographical Information

Emmanuel Delaleau got an electrical engineering degree in 1988 from the "Institut supérieur d'électronique du Nord" in Lille. Then he went to the University of Paris 11 and defended a Ph.D in nonlinear control under the supervision of Michel Fliess in 1993. He got the "Habilitation à diriger des recherches" (habilitation) in 2003.
Emmanuel Delaleau became "Maître de conférences" (assistant professor) at the University of Paris 11 (Orsay) in 1994. Recently, in September 2004, he became "Professeur des universités" (full professor) at the "Ecole nationale d'ingénieurs de Brest" (Brest) where he is the head of the new mechatronics department and in charge of developing the research activity of a small group in this area.