Non Linear Systems and Process


Scientific expertises:

Automatic, Nonlinear Systems, Observability and Observer Design, Control and Stabilization


The research topic of the SNLEP team concerns the theorical development and implementation of tools devoted to: Analyze, Model, Simulate, Control and Optimize Systems in Process Engineering.

Our theoretical developments are motivated by practical applications encountered through collaborations with industrial and academic partners. More specifically, our work focuses on model design and reduction, parametric identification and observation, diagnosis and control.

  • The Modeling concerns polymerization crystallization freeze and bio- processes. We exploit mainly heat balance and matter conservation law, heat and matter diffusion, mass transfer between phases and population balance in particulate processes to develop models suitable for simulation, observation and control.
  • Identification exploits tools coming from model predictive control and refers to experimental design in order to facilitate online parameter identification.
  • The observation topic refers to the design of algorithm to estimate online parameters and unknown quantities of the model.
  • Fault diagnosis refers to the detection of fault which is an unpermitted deviation of at least one characteristic property of the process from the acceptable, usual, standard condition.
  • The control topic focuses on the stabilization problem for finite and infinite dimensional systems, the tracking and control problem using optimization tools.

The chemical processes mainly concerned by the SNLEP team are polymerization processes, crystallization processes and drying processes.



 Director of SNLEP: Hassan Hammouri


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246 documents

  • Madiha Nadri, Hassan Hammouri, Carlos Manuel Astorga Zaragoza. Observer Design for Continuous-Discrete Time State Affine Systems up to Output Injection. European Journal of Control, Elsevier, 2004, 10 (03), pp.252-263. ⟨10.3166/ejc.10.252-263⟩. ⟨hal-00461769⟩
  • Pascal Dufour, Youssoufi Touré. Multivariable model predictive control of a catalytic reverse flow reactor. Computers & Chemical Engineering, Elsevier, 2004, 28 (11), pp.2259-2270. ⟨10.1016/j.compchemeng.2004.04.006⟩. ⟨hal-00351742v2⟩
  • Pascal Dufour, Francoise Couenne, Youssoufi Touré. Model predictive control of a catalytic reverse flow reactor. IEEE Transactions on Control Systems Technology, Institute of Electrical and Electronics Engineers, 2003, 11 (5), pp.705 – 714. ⟨10.1109/TCST.2003.816408⟩. ⟨hal-00338368v2⟩
  • Madiha Nadri, Hassan Hammouri. Design of a continuous-discrete observer for state affine systems. Applied Mathematics Letters, Elsevier, 2003, 16 (6), pp.967-974. ⟨10.1016/S0893-9659(03)90025-5⟩. ⟨hal-00457872⟩
  • Pascal Dufour, Youssoufi Touré, Denise Blanc, Pierre Laurent. On nonlinear distributed parameter model predictive control strategy: On-line calculation time reduction and application to an experimental drying process. Computers & Chemical Engineering, Elsevier, 2003, 27 (11), pp.1533-1542. ⟨10.1016/S0098-1354(03)00099-1⟩. ⟨hal-00352371v2⟩
  • Didier Theilliol, Mickael Rodrigues, Enrica Quintero, Manuel Adam Medina, Dominique Sauter. Adaptive filter design for fault detection and isolation in non linear systems described by interpolated L.T.I. models.. Congreso Latinoamericano de Control Automatico 2002 CLCA’02, Dec 2002, guadalajara, Mexico. pp.CD. ⟨hal-00634497⟩
  • Mickael Rodrigues, Manuel Adam Medina, Didier Theilliol, Dominique Sauter. Fault isolation and estimation in nonlinear systems: an adaptive filter solution based on multiple model approach. Institute for Automation and Robotics, Advanced Control and Diagnosis (IAR-ACD), Nov 2002, Grenoble, France. ⟨hal-00634495⟩
  • Pascal Dufour, Denise Blanc, Youssoufi Touré, Pierre Laurent. Model predictive control for an infrared drying process of a water based epoxy amine painting. International Drying Symposium (IDS), Aug 2002, Beijing, China. pp. 1147-1154. ⟨hal-00353067v2⟩
  • Hassan Hammouri, Boubekeur Targui, F. Armanet. High gain observer based on a triangular structure. International Journal of Robust and Nonlinear Control, Wiley, 2002, 12 (6), pp.497-518. ⟨10.1002/rnc.638⟩. ⟨hal-00524454⟩
  • Hassan Hammouri, Pousga Kabore, Sami Othman, Jean Biston. Failure diagnosis and nonlinear observer. Application to a hydraulic process. Journal of the Franklin Institute of the State of Pennsylvania, 2002, 339 (4-5), pp.455-478. ⟨10.1016/S0016-0032(02)00027-3⟩. ⟨hal-00524444⟩

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