Cycle seminars by Sophie Tarbouriech

Sophie Tarbouriech - LAAS-CNRS, Toulouse, France

Some ingredients on dynamical systems subject to constraints

17 May 2018 – h: 16:00

The talk discusses several key notions of dynamical systems subject to constraints. First dealing with nonlinear actuators, the way to embed the nonlinearities is presented. Next constraints of communication are discussed, whereas a focus on four theoretical aspects and three dedicated applications is proposed.

Observer-based event-triggered control for linear systems subject to cone-bounded nonlinearities

24 May 2018 – h: 15.00

The presentation presents an observer-based event-triggered control strategy for linear systems subject to input cone-bounded nonlinearities by using only available measurable variables. Sufficient conditions based on linear matrix inequalities are proposed to ensure the asymptotic stability of the closed loop and the avoidance of Zeno behavior in an emulation context. Based on these conditions, a convex optimization problem to compute the parameters of the event-trigger rule aiming at reducing the number of control updates is proposed. The approach is illustrated on a numerical example that considers the control of a linear system with a logarithmic input quantization constraint.

Venue: Seminar Room - Polo scientifico-tecnologico Fabio Ferrari – via Sommarive 9 - Trento

Biosketch: Sophie Tarbouriech received the PhD degree in Control Theory in 1991 and the HDR degree (Habilitation à Diriger des Recherches) in 1998 from University Paul Sabatier, Toulouse, France. Currently, she is full-time researcher (Directeur de Recherche) in LAAS-CNRS, Toulouse, France. Her main research interests include analysis and control of linear and nonlinear systems with constraints (limited information), hybrid dynamical systems. She is currently Associate Editor for IEEE Transactions on Automatic Control, Automatica and European Journal of Control. She is also in the  Editorial Board of International Journal of Robust and Nonlinear Control. She is also Senior Editor for IEEE  Control Systems Letters. Since 1999, she is Associate Editor at the Conference Editorial Board  of the IEEE Control Systems Society. She is also a member of the IFAC Technical Committees on Robust Control and Nonlinear Systems. She is also member of the IEEE Technical Committee on Hybrid Systems.