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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268 documents

  • Yang Yu, Hai-Long Pei, Cheng-Zhong Xu. Estimation of velocity potential of water waves using a Luenberger-like observer. Science China Information Sciences, Springer, 2020, 63 (12), ⟨10.1007/s11432-019-2631-6⟩. ⟨hal-03110106⟩
  • Nawel Afsi, Sami Othman, Toufik Bakir, Liborio Costa, Anis Sakly, et al.. Model predictive control for continuous lactide ring‐opening polymerization processes. Asian Journal of Control, Asian Control Association (ACA) and Chinese Automatic Control Society (CACS) 2020, ⟨10.1002/asjc.2453⟩. ⟨hal-02991993⟩
  • O Koçan, Daniele Astolfi, C. Poussot-Vassal, A Manecy. Supervised Output Regulation via Iterative Learning Control for Rejecting Unknown Periodic Disturbances. 21st IFAC World Congress, Jul 2020, Berlin, Germany. ⟨hal-02557323⟩
  • Bertrand Zitte, Boussad Hamroun, Daniele Astolfi, Françoise Couenne. Robust Control of a Class of Bilinear Systems by Forwarding: Application to Counter Current Heat Exchanger. 21st IFAC World Congress, Jul 2020, Berlin, Germany. ⟨hal-02557335⟩
  • Vincent Andrieu, Bayu Jayawardhana, Laurent Praly. Characterizations of global transversal exponential stability (long version). 2020. ⟨hal-02851212v2⟩
  • Vincent Andrieu, Daniele Astolfi, Pauline Bernard. Observer design via interconnections of second-order mixed sliding-mode/linear differentiators. International Journal of Robust and Nonlinear Control, Wiley, In press. ⟨hal-02751929⟩
  • Bouali Rabaoui, Hamdi Habib, Naceur Benhadjbraiek, Mickael Rodrigues. A reconfigurable PID fault tolerant tracking controller design for LPV systems. ISA Transactions, Elsevier, 2019. ⟨hal-02388923⟩
  • Daniele Astolfi, Laurent Praly, Lorenzo Marconi. Francis-Wonham nonlinear viewpoint in output regulation of minimum phase systems. 11th IFAC Symposium on Nonlinear Control Systems (NOLCOS 2019), Sep 2019, Vienna, Austria. ⟨hal-02411369⟩
  • Nawel Afsi, Sami Othman, Toufik Bakir, Liborio Costa, Anis Sakly, et al.. Dynamic optimization of a continuous Lactide ring-opening polymerization process. 2019 International Conference on Control, Automation and Diagnosis (ICCAD), Jul 2019, Grenoble, France. pp.1-6, ⟨10.1109/ICCAD46983.2019.9037934⟩. ⟨hal-02541208⟩
  • Lucas Brivadis, Vincent Andrieu, E Chabanon, E. Gagnière, Noureddine Lebaz, et al.. Soft sensors for a batch crystallization process. Cristal 9, May 2019, Nancy, France. ⟨hal-02100158⟩

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