Pós-Graduação em Engenharia de Automação e Sistemas

Local

Projeção – Sala de Reuniões 2 – DAS

Prof. Philippe Bogaerts,  Dr. – 3BIO/BioControl/ULB (Bélgica);

Prof. Emanuele Garone, Dr. – SAAS/ULB (Bélgica).

critical systems such as energy storage systems, the estimation of unmeasured states is of

fundamental importance to guarantee that the occurrence of faults is avoided or, at least,

minimized. In this report, an introduction about FDI is first presented, including the motivation for studying this topic. Next, the design of robust H observers is proposed for  ∞ discrete-time systems in the presence of modeling uncertainties and nonlinearities satisfying Lipschitz-like constraints. This study is extended for discrete-time nonlinear descriptor systems with the view of applying the proposed approach to lithium-ion battery packs.

Then, in order to obtain a numerical and tractable solution, the design conditions are cast  in terms of a convex optimization problem subject to Linear Matrix Inequality (LMI)  constraints. Simulation results illustrate the effectiveness and the performance of the proposed filter despite the presence of unknown inputs (such as disturbances and noise) as well as model uncertainties. Ending this report, the upcoming activities to be carried out in the PhD studies are presented which consist on developing the theory of robust observers for model-based residual generation in fault detection and isolation systems with applications to lithium-ion battery packs.