Laurent PRALY
LISTE DE PUBLICATIONS / LIST OF PUBLICATIONS
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Thèse / Dissertation (PhD)
Commande linéaire adaptative: Solutions bornées et leur propriétés.
Thèse de docteur en Mathématiques et Automatique.
Université Paris XI Dauphine. 1988Stabilisation de point d'équilibre et Atténuation de perturbations
Mémoire d'Habilitation à Diriger des Recherches
Spécialité en Mathématiques
Université Piere et Marie Curie, Paris 6. novembe 2010
Livres ou Chapitres de livre / Books or Book chapters
L. Praly et D. Bresch-Pietri.
Fonctions de Lyapunov, Stabilité, Stabilisation et Atténuation de perturbations
Spartacus IDH. 2022
Plus d'informationsL. Praly,
Observers for Nonlinear Systems,
in Encyclopedia of Systems and Control. Editors: J. Baillieul, T. Samad. Spinger-Verlag London 2014. DOI 10.1007/978-1-4471-5102-9_84-1A. Teel, T. Georgiou, L. Praly, and E. Sontag,
Input-Output Stability,
In W. S. Levine, editor, The Control Systems Handbook: Control System Advanced Methods, Second Edition., pages 44.1-44.23 (1011-1033). CRC Press, Boca Raton, 2011.L. Marconi, L. Praly,
Essential and redundant internal model in nonlinear output regulation
in Analysis and Design of Nonlinear Control Systems, A. Astolfi, L. Marconi (Eds), Springer Verlag Berlin, 2007.L. Praly,
Une introduction à l'utilisation de fonctions de Lyapunov pour la stabilisation et l'atténuation de perturbations.
Chapitre 2 dans:
Commandes non linéaires, F. Lamnabhi-Lagarrigue, P. Rouchon, Editeurs, Lavoisier 2003L. Praly,
An introduction to forwarding.
Chapter 4 in:
Control of complex systems,
K. Astrom, P. Albertos, M. Blanke, A. Isidori, W. Schaufelberger and R. Sanz, Editors, Springer 2001J.-M. Coron, L. Praly, A. Teel, Feedback stabilization of nonlinear systems : Sufficient conditions and Lyapunov and Input-output techniques.
Minicourse on Stabilization of nonlinear system, L. Praly (Organizer).
In Trends in Control, A. Isidori (Editor), Springer Verlag, Pages: 293-347, August 1995.L. Praly, G. Bastin, J.-B. Pomet et Z.P. Jiang,
Adaptive stabilisation of non linear systems.
Foundations of adaptive control.
Lecture Notes in Control and Informations Sciences. Springer Verlag 1991.B.D.O. Anderson, R.R. Bitmead, C.R. Johnson, P.V. Kokotovic, R.L. Kosut, I.M.Y. Mareels, L. Praly, B.D. Riedle.
Stability of adaptive systems: Passivity and averaging analysis.
MIT Press. 1986.L. Praly,
Commande adaptative par modèle de référence: stabilité et robustesse.
Outils et modèles mathématiques pour l'analyse des systèmes, l'automatique, et le traitement du signal.
Vol. 3, éditions du CNRS. Paris. 1983.
Articles / Papers
R. Sanfelice, L. Praly,
Convergence of Nonlinear Observers on Rn with a Riemannian Metric (Part III).
IEEE Transactions on Automatic Control, Vol. 69, N. 3, March 2024. Pages 1432-1447.
doi: 10.1109/TAC.2023.3321236
A detailed version is available hereD. Astolfi, L. Praly, L. Marconi
Harmonic internal models for structurally robust periodic output regulation
Systems & Control Letters, Vol. 161, 2022
doi.org/10.1016/j.sysconle.2022.105154
A detailed version is available hereD. Astolfi, L. Praly, L. Marconi
Nonlinear robust periodic output regulation of minimum phase systems
Math. Control Signals Syst. (2021)
doi.org/10.1007/s00498-021-00307-w
A detailed version is available as hal-03335543 or hereV. Andrieu, B. Jayawardhana, L. Praly
Characterizations of global transversal exponential stability.
IEEE Transactions on Automatic Control, Vol. 66, N. 8, August 2021. Pages 3682-3694.
doi: 10.1109/TAC.2020.3036021
A detailed version is available as hal-02851212v2 or hereP. Bernard, L. Praly
Estimation of position and resistance of a sensorless PMSM : a nonlinear Luenberger approach for a non-observable system.
IEEE Transactions on Automatic Control, Vol. 66, N. 2, February 2021. Pages 481-496.
doi: 10.1109/TAC.2020.2981341L. Praly
Observers to the aid of “strictification” of Lyapunov functions.
Systems & Control Letters, Vol. 134, December 2019. Article 104510
doi.org/10.1016/j.sysconle.2019.104510
A detailed version is available as hal-02277527v1 or hereD. Astolfi , L. Marconi , L. Praly , A. Teel
Low-Power Peaking-Free High-Gain Observers
Automatica, Vol. 98, 2018. Pages: 169-179
doi.org/10.1016/j.automatica.2018.09.009R. Ortega, L. Praly, S. Aranovskiy, B. Yi, W. Zhang
On Dynamic Regressor Extension and Mixing Parameter Estimators: Two Luenberger Observers Interpretations.
Automatica, Vol. 95, 2018. Pages: 548-551
doi.org/10.1016/j.automatica.2018.06.011P. Bernard, V. Andrieu, L. Praly
Expressing an observer in preferred coordinates by transforming an injective immersion into a surjective diffeomorphism.
SIAM J. Control Optim. Vol. 56, N. 3, Pages: 2327-2352, 2018.
doi.org/10.1137/15M1037755P. Bernard, L. Praly
Convergence of gradient observer for rotor position and magnet flux estimation of permanent magnet synchronous motors.
Automatica, Vol. 94, 2018. Pages: 88-93
doi.org/10.1016/j.automatica.2018.04.009P. Bernard, L. Praly, V. Andrieu, H. Hammouri
On the triangular canonical form for uniformly observable controlled systems.
Automatica, Vol. 85, 2017. Pages: 293-300
doi.org/10.1016/j.automatica.2017.07.034A. Agrawal, O. Harib, A. Hereid, S. Finet, M. Masselin, L. Praly, A. Ames, K. Sreenath, J. Grizzle,
First steps towards translating HZD control of bipedal robots to decentralized control of exoskeletons,
IEEE Access. December 2017. Vol.~5, No.~1, pages 9919-9934
doi: 10.1109/ACCESS.2017.2690407P. Bernard, L. Praly, V. Andrieu,
Observers for a non-Lipschitz triangular form.
Automatica, Vol. 82, 2017. Pages: 301-313
doi.org/10.1016/j.automatica.2017.04.054D. Astolfi, L. Praly
Integral Action in Output Feedback for multi-input multi-output nonlinear systems
IEEE Transactions on Automatic Control, Vol. 62, N. 4, April 2017. Pages 1559-1574.
doi: 10.1109/TAC.2016.2599784V. Andrieu, B. Jayawardhana, L. Praly,
Transverse exponential stability and applications.
IEEE Transactions on Automatic Control, Vol. 61, N. 11, November 2016. Pages: 3396-3411
doi: 10.1109/TAC.2016.2528050R. Sanfelice, L. Praly,
Convergence of Nonlinear Observers on Rn with a Riemannian Metric (Part II).
IEEE Transactions on Automatic Control, Vol. 61, N. 10, October 2016. Pages: 2848-2860
doi: 10.1109/TAC.2015.2504483
For a detailed version see doc1 and doc2 with x?9aM!4z as password for the laterG. Scarciotti, L. Praly, A. Astolfi
Invariance-like theorems andlim infconvergence properties
IEEE Transactions on Automatic Control, Vol. 61, N. 3, July 2016. Pages: 648 - 661
doi: 10.1109/TAC.2015.2444132H. Khalil, L. Praly
High-gain observers in nonlinear feedback control
Int. J. Robust Nonlinear Control 2014; 24:991-992
doi: 10.1002/rnc.3156S. Benachour, V. Andrieu, L. Praly, H. Hammouri
Forwarding design with prescribed local behavior
IEEE Transactions on Automatic Control, Vol. 58 , N. 12, December 2013, Pages: 3011-3023
doi: 10.1109/TAC.2013.2277632L. Praly, D. Carnevale, A. Astolfi
Dynamic versus static weighting of Lyapunov functions
IEEE Transactions on Automatic Control, Vol. 58, N. 6, June 2013, Pages 1557-1561
doi: 10.1109/TAC.2012.2229813A. Isidori, L. Marconi, L. Praly
Robust design of nonlinear internal models without adaptation
Automatica, Vol. 48, N. 10, October 2012. Pages: 2409-2419
doi.org/10.1016/j.automatica.2012.06.076R. Sanfelice, L. Praly
Convergence of Nonlinear Observers on Rn with a Riemannian Metric (Part I)
IEEE Transactions on Automatic Control, Vol. 57, N. 7, July 2012. Pages: 1709 - 1722
The original version can be downloaded from doi: 10.1109/TAC.2011.2179873 . But it contains an error.
A corrected version can be downloaded from Corrected.pdf or from arXiv.org/1412.6730R. Sanfelice, L. Praly
On the performance of high-gain observers with sign-indefinite gain adaptation under measurement noise.
Automatica, Vol. 47, N. 10, October 2011. Pages: 2141-2330
doi.org/10.1016/j.automatica.2011.08.002D. Angeli, L. Praly
Stability robustness in the presence of exponentially unstable isolated equilibria.
IEEE Transactions on Automatic Control, Vol. 56, N. 7, July 2011. Pages: 1582 - 1592
doi: 10.1109/TAC.2010.2091170R. Ortega, L. Praly, A. Astolfi, J. Lee, K. Nam,
Estimation of rotor position and speed of permanent magnet synchronous motors with guaranteed stability
IEEE Transactions on Control Systems Technology, Vol. 19, N. 3, , March 2011, Pages: 601 - 614
doi: 10.1109/TCST.2010.2047396L. Marconi, L. Praly, A. Isidori
Robust asymptotic stabilization of nonlinear systems with non-hyperbolic zero dynamics
IEEE Transactions on Automatic Control, Vol. 55, N. 4, May 2010. Pages: 907 - 921
doi: 10.1109/TAC.2010.2042001A. Isidori, L. Praly, L. Marconi,
About the existence of locally Lipschitz output feedback stabilizers for nonlinear systems.
SIAM J. Control Optim. Vol. 48, N. 5, Pages: 3389-3402, 2010.
doi.org/10.1137/080741677J. Lee, J. Hong, K. Nam, R. Ortega, L.Praly, A. Astolfi,
Sensorless control of surface-mount permanent magnet synchronous motors based on a nonlinear observer.
IEEE Transactions on Power Electronics, Vol. 25 , N. 2, February 2010 , Pages 290 - 297
doi: 10.1109/TPEL.2009.2025276V. Andrieu, L. Praly, A. Astolfi,
Asymptotic tracking of a reference trajectory by output-feedback for a class of non linear systems
Systems & Control Letters, Vol. 58, N. 9, September 2009, Pages 652-663
doi.org/10.1016/j.sysconle.2009.04.008V. Andrieu, L. Praly,
A unifying point of view on output feedback designs.
Automatica, Vol. 45, N. 8, August 2009, Pages 1789-1798
doi.org/10.1016/j.automatica.2009.04.015V. Andrieu, L. Praly, A. Astolfi,
High gain observers with updated high-gain and homogeneous correction terms.
Automatica, Vol. 45, N. 2, February 2009, Pages 422-428
doi.org/10.1016/j.automatica.2008.07.015V. Andrieu, L. Praly, A. Astolfi,
Homogeneous approximation, recursive observer design and output feedback.
SIAM J. Control Optim. Vol. 47, N. 4, Pages: 1814-1850, 2008.
doi.org/10.1137/060675861L. Marconi, L. Praly,
Uniform practical nonlinear output regulation.
IEEE Transactions on Automatic Control, Vol. 53, N. 5, June 2008
doi: 10.1109/TAC.2008.923674V. Andrieu, L. Praly,
Global asymptotic stabilization for non-minimum phase non linear systems admitting a strict normal form.
IEEE Transactions on Automatic Control, Vol. 53, N. 5, June 2008
doi: 10.1109/TAC.2008.923657L. Marconi, L. Praly , A. Isidori,
Output Stabilization via Nonlinear Luenberger Observers.
SIAM J. Control Optim. Vol. 45, N. 6, Pages: 2277-2298, 2007.V. Andrieu, L. Praly,
On the existence of a Kazantzis--Kravaris / Luenberger observer.
SIAM J. Control Optim. Vol. 45, N. 2, pp 432-456, 2006A. Astolfi, L. Praly,
Global complete observability and output-to-state stability imply the existence of a globally convergent observer.
Mathematics of Control, Signals and Systems (2006) 18: 32-65G. Zhu, J. Levine, L. Praly, Y.-A Peter,
Flatness-based control of electrostatically actuated MEMS with application to adaptive optics: a simulation study.
Journal of Microelectromechanical Systems, Vol. 15, N. 5, October 2006G. Kaliora, A. Astolfi, L.Praly,
Norm estimators and global output feedback stabilization of nonlinear systems with ISS inverse dynamics.
IEEE Transactions on Automatic Control, Vol. 51, N. 3, March 2006, Pages: 493-498L. Praly, Z. P. Jiang,
Linear output feedback with dynamic high gain for nonlinear systems.
Systems & Control Letters 53. 107-116. October 2004L. Praly, M. Arcak,
A relaxed condition for stability of nonlinear observer-based controllers.
Systems & Control Letters 53. 311-320. November 2004R. Orsi, L. Praly, and I. Mareels,
Necessary conditions for stability and attractivity of continuous systems.
International Journal of Control, 76(11):1070-1077, 2003.L. Praly,
Asymptotic stabilization via output feedback for lower triangular systems with output dependent incremental rate.
IEEE Transactions on Automatic Control, Vol. 48, N. 6, June 2003P. Moya, R. Ortega, M. Netto, L. Praly, J. Picó,
Application of nonlinear time-scaling for robust controller design of reaction systems,
Int J. Robust Nonlinear Control 2002; 12: 57-69L. Praly, R. Ortega, G. Kaliora,
Stabilization of nonlinear systems via forwarding modulo LgV.
IEEE Transactions on Automatic Control, Vol. 46, N. 9, September 2001R. Orsi, L. Praly, I. Mareels,
Sufficient Conditions for the existence of an unbounded solution.
Automatica, Vol. 37, N. 10, October 2001, Pages 1609-1617B. Hamzi, L. Praly
Ignored input dynamics and a new characterization of control Lyapunov functions.
Automatica, Vol. 37, N. 6, June 2001, Pages 831-841A. Isidori, A. Teel, L. Praly,
A note on the problem of semiglobal practical stabilization of uncertain nonlinear systems via dynamic output feedback.
Systems and Control Letters. Vol. 39, N. 3, 15 March 2000.A.R. Teel, L. Praly,
On assigning the derivative of a disturbance attenuation clf
Mathematics of Control, Signals and Systems (2000) 13:95-124.C. Canudas, L. Praly,
Adaptive eccentricity compensation,
IEEE Transactions on Control Systems Technology, Vol. 8, N. 5, July 2000A.R. Teel, L. Praly,
A smooth Lyapunov function from a class-KL estimate involving two positive semi-definite functions.
ESAIM: COCV, Vol. 5, 2000F. Mazenc, L. Praly,
Asymptotic tracking of a state reference for systems with a feedforward structure.
Automatica, Vol. 36, N. 2, February 2000, Pages 179-187F. Grognard, G. Bastin, R. Sepulchre, L. Praly,
Nested linear low-gain design for semiglobal stabilization of feedforward systems.
Journal A, Vol. 41, N. 2, 2000R. Freeman, L. Praly,
Integrator Backstepping for Bounded Controls and Control Rates
IEEE Transactions on Automatic Control, Vol.43, N. 2, February 1998.Z.-P. Jiang, L. Praly,
Design of Robust Adaptive Controllers for Nonlinear Systems with Dynamic Uncertainties.
Automatica, Vol. 34, N. 7, July 1998, Pages 825-840L. Praly, Y. Wang,
An equivalent definition of input-to-state stability and Stabilization in spite of matched unmodelled dynamics,
Mathematics of Control, Signals, and Systems. (1996) 9: 1-33F. Mazenc, L. Praly,
Adding integrations, saturated controls and global asymptotic stabilization for feedforward systems,
IEEE Transactions on Automatic Control, Vol.41, N. 11, November 1996.R. Ortega, A. Loria, R. Kelly, L. Praly,
On passivity-based output feedback global stabilization of Euler-Lagrange systems,
Int. J. of Robust and Nonlinear Control, vol. 5, 313-323, (1995).A. Teel, L. Praly,
Tools for semi-global stabilization by partial state and output feedback.
SIAM Journal on Control and Optimization, Vol. 33, N. 5, September 1995.Z.-P. Jiang, A. Teel, L. Praly,
Small-gain theorem for ISS systems and applications
Mathematics of Control, Signals and Systems (1994) 7: 95-120.A. Teel, L. Praly,
Global stabilizability and observability imply semi-global stabilizability by output feedback,
Systems & Control Letters 22 (1994) 313-325.F. Mazenc, L. Praly, and W. P. Dayawansa,
Global stabilization by output feedback : Examples and Counter-Examples,
Systems & Control Letters 23 (1994) 119-125Z.-P. Jiang, L. Praly,
Technical results for the study of robustness of Lagrange stability.
Systems & Control Letters 23 (1994) 67-78M. España, L. Praly,
On the global dynamics of adaptive systems: a study of an elementary example
SIAM J. Control and Optimization. Vol. 31, N. 5, pp 1143-1166, September 1993.L. Praly, Z.-P. Jiang,
Stabilization by output feedback for systems with ISS inverse dynamics.
Systems & Control Letters 21, 1 (1993)Z.-P. Jiang, L. Praly,
Preliminary results about Lagrange stability in adaptive nonlinear regulation
Int. J. of A.C.S.P., Vol. 6, N. 4, July 1992L. Praly,
Adaptive regulation: Lyapunov design with a growth condition
Int. J. of A.C.S.P., Vol. 6, N. 4, July 1992J.-B. Pomet, L. Praly,
Adaptive non-linear stabilization: estimation from the Lyapunov equation.
IEEE Transactions on Automatic Control, Vol. 37 , N. 6 , Pages: 729 - 740, June 1992B. d'Andréa-Novel, L. Praly,
Playing with the regulation zeros in the stabilization of a double inverted pendulum.
KYBERNETIKA, Vol. 27, N. 3, 1991J.-M. Coron , L. Praly,
Adding an integrator for the stabilization problem.
Systems & Control Letters 17 (1991) 89-104.L. Praly, B. d'Andréa-Novel, J.-M. Coron,
Lyapunov design of stabilizing controllers for cascaded systems.
IEEE Transactions on Automatic Control, Vol. 36, N. 10, Pages: 1177-1181, October 1991.L. Praly,
Topological orbital equivalence for a two time scales discrete time system
Mathematics of Control, Signals and Systems (1990) 3: 225-253.L. Praly,
The almost exact modeling assumption in adaptive linear control.
International Journal of Control, Vol. 51, N. 3, 643-668, 1990.J.-B. Pomet, J.-M. Coron, L. Praly,
About periodic solutions of adaptive systems in the presence of periodic forcing terms
Mathematics of Control, Signals and Systems (1990) 3: 373-399.L. Praly, S.F. Lin, P.R. Kumar,
A robust adaptive minimum variance controller.
SIAM J. Control and Optimisation Vol. 27, N. 2, March 1989.K. Najim, H. Youlal, L. Praly, M. Najim,
Direct adaptive control of a pulsed liquid-liquid extraction column.
Int. J. of Adaptive Control and Signal Processing, Vol. 2, N. 3, September 1988J.-B. Pomet, L. Praly,
A result on robust boundedness.
Systems & Control Letters 10 (1988) 83-92
pdf + Complementary note.pdfB. d'Andréa-Novel, L. Praly,
About finite nonlinear zeros for decouplable systems
Systems & Control Letters 10 (1988) 83-92P.R. Kumar, L. Praly,
Self-tuning trackers.
SIAM J. Control and Optimisation Vol. 25, N. 4, July 1987R. Ortega, L. Praly, Y. Tang,
Direct adaptive tuning of robust controllers with guaranteed stability properties.
Systems & Control Letters 8 (1987) 321-326.R. Riedle, L. Praly, P. Kokotovic,
Examination of the SPR condition in output error parameter estimation.
Automatica, Vol. 22, N. 4, July 1986, Pages 495-498L. Praly, E. Trulsson,
Decentralized indirect adaptive control.
APII-1986-20 p.295-315P. Kokotovic, B. Riedle, L. Praly,
On a stability criterion for continuous slow adaptation.
Systems & Control Letters 6 (1985) 7-14. June 1985.R. Ortega, L. Praly, I. D. Landau,
Robustness of discrete adaptive controllers: quantification and improvement.
IEEE Transactions on Automatic Control, Vol. 30 , N. 12, Pages: 1179 - 1187. December 1985.L. Praly,
Towards a globally stable direct adaptive control scheme for not necessarily minimum phase systems.
IEEE Transactions on Automatic Control, Vol. 29 , N. 10, Pages: 946 - 949. October 1984.
Conférences / Conferences
R. Kato, D. Astolfi, V. Andrieu and L. Praly
Incremental global asymptotic stability equals incremental global exponential stability but at equilibria
submitted for presentation at 13th IFAC Symposium on Nonlinear Control Systems, Reykjavik, Iceland, July 2025V Pachy, V Andrieu, P Bernard, L Brivadis and L. Praly
On the existence of KKL observers with nonlinear contracting dynamics
IFAC-Papers OnLine 58 (21), 262-267P. Bernard, T. Devos, A-K Jebai, P. Martin and L. Praly
A novel observer for induction motors, with an application to soft starters
2022 International Conference on Electrical Machines (ICEM), 592-598P. Bernard, T. Devos, A-K Jebai, P. Martin and L. Praly
KKL observer design for sensorless induction motors
2022 IEEE 61st Conference on Decision and Control (CDC), 1235-1242D. Astolfi, L. Praly, L. Marconi
Francis-Wonham nonlinear viewpoint in output regulation of minimum phase systems
11th IFAC Symposium on Nonlinear Control Systems - NOLCOS 2019, Vienna, Austria, September 2019M. Bin, D. Astolfi, L. Marconi, L. Praly
About robustness of internal model-based control for linear and nonlinear systems.
Proceedings of the 57th IEEE Conference on Decision and Control, December 2018.P. Bernard, L. Praly
Robustness of rotor position observer for permanent magnet synchronous motors with unknown magnet flux.
Proceedings of IFAC 2017 World Congress.P. Bernard, L. Praly, V. Andrieu
Non Lipschitz triangular canonical form for uniformly observable controlled systems.
10th IFAC Symposium on Nonlinear Control Systems (NOLCOS 2016)D. Astolfi, L. Marconi, L. Praly, A. Teel
Sensitivity to high-frequency measurement noise of nonlinear high-gain observers.
10th IFAC Symposium on Nonlinear Control Systems (NOLCOS 2016)D. Astolfi, L. Praly, L. Marconi
Approximate regulation for nonlinear systems in presence of periodic disturbances.
Proceedings of the 54th IEEE Conference on Decision and Control, December 2015.R. Sanfelice, L. Praly
Solution of a Riccati equation for the design of an observer contracting a Riemannian distance.
Proceedings of the 54th IEEE Conference on Decision and Control, December 2015.P. Bernard, L. Praly, V. Andrieu
Tools for observers based on dynamic extension.
Proceedings of the 54th IEEE Conference on Decision and Control, December 2015.S. Finet, L. Praly
Feedback linearization of the transverse dynamics for a class of one degree underactuated systems.
Proceedings of the 54th IEEE Conference on Decision and Control, December 2015.V. Andrieu, J.-B. Eytard, L. Praly
Dynamic extension without inversion for observers
Proceedings of the 53rd IEEE Conference on Decision and Control, December 2014.D. Astolfi, L. Praly,
Output feedback stabilization with an observer in the original coordinates for nonlinear systems
Proceedings of the 52nd IEEE Conference on Decision and Control, December 2013.G. Scarciotti, L. Praly, A. Astolfi,
A weak version of the small-gain theorem for large-scale systems
Proceedings of the 52nd IEEE Conference on Decision and Control, December 2013.V. Andrieu, B. Jayawardhana, L. Praly,
On transverse exponential stability and its use in incremental stability, observer and synchronization
Proceedings of the 52nd IEEE Conference on Decision and Control, December 2013.T. Türker, L. Praly,
Energy level stabilization of pendulum on a cart with restricted cart track based on elliptic functions and integrals
Proceedings of the 9th IFAC Symposium on Nonlinear Control Systems (NOLCOS 2013).D. Astolfi, L. Praly, L. Marconi,
Observability Canonical Forms for Nonlinear Single-Input Single-Output Systems
Proceedings of the 9th IFAC Symposium on Nonlinear Control Systems (NOLCOS 2013).A. Isidori, L. Marconi, D. Astolfi, L. Praly,
Nonlinear output regulation by post-processing internal model for multi-input multi-output systems
Proceedings of the 9th IFAC Symposium on Nonlinear Control Systems (NOLCOS 2013).J. Malaizé, L. Praly, N. Henwood
Globally convergent nonlinear observer for the sensorless control of surface-mount permanent magnet synchronous machines.
Proceedings of the 51st IEEE Conference on Decision and Control, December 2012.A. Astolfi, L. Praly,
A weak version of the small-gain theorem.
Proceedings of the 51st IEEE Conference on Decision and Control, December 2012.N. Henwood, J. Malaizé, L. Praly
A robust nonlinear Luenberger observer for the sensorless control of SM-PMSM: Rotor position and magnets flux estimation.
Proceedings of the IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society. 1625 - 163, 2012S. Benachour,V. Andrieu, L. Praly, H. Hammouri
Adding an integration with prescribed local behavior
Proceedings of the 50th IEEE Conference on Decision and Control and European Control Conference (CDC-ECC), December 2011A. Astolfi , L. Praly
A LaSalle version of Matrosov theorem
Proceedings of the 50th IEEE Conference on Decision and Control and European Control Conference (CDC-ECC), December 2011N. Henwood, J. Malaizé, L. Praly,
PMSM identification for automotive applications: Cancellation of position sensor errors
Proceedings of the IECON 2011 - 37th Annual Conference on IEEE Industrial Electronics Society. 687 - 692, 2011L. Praly
On observers, a meeting of many view points and applications.
18th IFAC World Congress, August 2011
Diaporama (pdf) Video (flv, 80Mo) Video (divx, 500Mo)D. Angeli, L. Praly
Stability Robustness in the presence of exponentially unstable isolated equilibria
Proceedings of the 49th IEEE Conference on Decision and Control, December 2010P.-J. Bristeau, N. Petit, L. Praly
Design of a navigation filter by analysis of local observability
Proceedings of the 49th IEEE Conference on Decision and Control, December 2010L. Praly, D. Carnevale, A. Astolfi
Integrator forwarding via dynamic scaling
Proceedings of the 49th IEEE Conference on Decision and Control, December 2010A. Isidori, L. Marconi, L. Praly
A design solution to the problem of adaptive output regulation for nonlinear minimum-phase systems
Proceedings of the 49th IEEE Conference on Decision and Control, December 2010F. Poulain, L. Praly
Robust asymptotic stabilization of nonlinear systems by state feedback
Proceedings of the 8th IFAC Symposium on Nonlinear Control Systems (NOLCOS 2010).R. Sanfelice, L. Praly
A Technical Result for the Study of High-gain Observers with Sign-indefinite Gain Adaptation.
Proceedings of the 8th IFAC Symposium on Nonlinear Control Systems (NOLCOS 2010).L. Praly, D. Carnevale, A. Astolfi
Dynamic vs static scaling: an existence result
Proceedings of the 8th IFAC Symposium on Nonlinear Control Systems (NOLCOS 2010).V. Andrieu, L. Praly, A. Astolfi
Homogeneity in the bi-limit as a tool for observer and feedback design
Proceedings of the 48th IEEE Conference on Decision and Control, December 2009R. Sanfelice, L. Praly
Nonlinear observer design with an appropriate Riemannian metric
Proceedings of the 48th IEEE Conference on Decision and Control, December 2009
A detailed version is available asL. Marconi, L. Praly, A. Isidori
Robust Asymptotic Stabilization of Nonlinear Systems with Non-Hyperbolic Zero Dynamics: Part II .
Proceedings of the 47th IEEE Conference on Decision and Control, December 2008L. Marconi, L. Praly, A. Isidori
Robust Asymptotic Stabilization of Nonlinear Systems with Non-Hyperbolic Zero Dynamics: Part I .
Proceedings of the 47th IEEE Conference on Decision and Control, December 2008F. Poulain, L. Praly, R. Ortega
An Observer for Permanent Magnet Synchronous Motors with Currents and Voltages as only Measurements.
Proceedings of the 47th IEEE Conference on Decision and Control, December 2008G. Zhu, J. Levine, L. Praly
Stabilization of an Electrostatic MEMS Including Uncontrollable Linearization.
Proceedings of the 46th IEEE Conference on Decision and Control, December 2007V. Andrieu, L. Praly, A. Astolfi
Asymptotic tracking of a state trajectory by output-feedback for a class of non linear systems.
Proceedings of the 46th IEEE Conference on Decision and Control, December 2007V. Andrieu, L. Praly, A. Astolfi,
Homogeneous observers with dynamic high gains.
Proceedings of the 7th IFAC Symposium on Nonlinear Control Systems (NOLCOS 2007).V. Andrieu, L. Praly,
A unifying point of view on output feedback designs.
Proceedings of the 7th IFAC Symposium on Nonlinear Control Systems (NOLCOS 2007).L. Marconi, L. Praly,
Some results on robust output feedback stabilization of nonlinear systems
Proceedings of the 7th IFAC Symposium on Nonlinear Control Systems (NOLCOS 2007).L. Marconi, L. Praly,
Practical Output Regulation without High-Gain,
Proceedings of the 45th IEEE Conference on Decision and Control, December 2006V. Andrieu, L. Praly, A. Astolfi,
Nonlinear output feedback design via domination and generalized weighted homogeneity,
Proceedings of the 45th IEEE Conference on Decision and Control, December 2006L. Praly, A. Isidori, L. Marconi,
A new observer for an unknown harmonic oscillator
Proceedings of the 17th International Symposium on Mathematical Theory of Networks and Systems, Kyoto, Japan, July 24-28, 2006C.I. Byrnes, A. Isidori, L. Marconi, L. Praly,
Nonlinear Output Regulation without Immersion.
Proceedings of the 44th IEEE Conference on Decision and Control, December 2005L. Praly, A. Astolfi,
Global asymptotic stabilization by output feedback under a state norm detectability assumption.
Proceedings of the 44th IEEE Conference on Decision and Control, December 2005V. Andrieu, L. Praly,
Global asymptotic stabilization by output feedback for some non minimum phase non linear systems.
Proceedings of the 44th IEEE Conference on Decision and Control, December 2005G. Zhu, J. Levine, L. Praly,
Improving the performance of an electrostatically actuated MEMS by nonlinear control~: Some advances and comparisons.
Proceedings of the 44th IEEE Conference on Decision and Control, December 2005G. Zhu, J. Levine, L. Praly,
On the differential flatness and control of electrostatically actuated MEMS.
Proceedings of the 2005 American Control Conference.V. Andrieu, L. Praly,
Remarks on the existence of a Kazantzis-Kravaris/Luenberger observer.
Proceedings of the 43rd IEEE Conference on Decision and Control, December 2004.G. Kaliora, A. Astolfi, L.Praly,
Norm estimators and global output feedback stabilization of nonlinear systems with ISS inverse dynamics.
Proceedings of the 43rd IEEE Conference on Decision and Control, December 2004.C. Kellett, L. Praly,
Nonlinear control tools for low thrust orbital transfer.
Proceedings of the 6th IFAC Symposium on Nonlinear Control Systems (NOLCOS 2004).C. Prieur, L. Praly,
A tentative direct Lyapunov design of output feedbacks.
IFAC Proceedings Volumes. Volume 37, Issue 13, September 2004, Pages 847 - 852.J. Lévine, L. Praly, E. Sedda,
On the control of an electromagnetic actuator of valve positionning on a camless engine.
Proceedings of the AVEC'04 (Advanced VEhicle Control) Conference, Arnhem, The Netherlands, August 2004.L. Praly, J. Jiang,
On global output feedback stabilization of uncertain nonlinear systems.
Proceedings of the 42nd IEEE Conference on Decision and Control, December 2003.A. Astolfi, L. Praly,
Global complete observability and output-to-state stability imply the existence of a globally convergent observer.
Proceedings of the 42nd IEEE Conference on Decision and Control, December 2003.H. Shim, L. Praly,
Remarks on equivalence between full order and reduced order nonlinear observers.
Proceedings of the 42nd IEEE Conference on Decision and Control, December 2003.J. Lévine, L. Praly
Sur la commande d'un actionneur électromagnétique de positionnement de soupapes.
Journées Automatique et Automobile de Bordeaux. Novembre 2003.C. I. Byrnes, A. Isidori, and L. Praly
On the Asymptotic Properties of a System Arising in Non-Equilibrium Theory of Output Regulation.
Stockholm, Sweden: Mittag-Leffler Institute, 2002-2003.L. Praly, M. Arcak,
On certainty-equivalence design of Nonlinear observer-based controllers.
Proceedings of the 41st IEEE Conference on Decision and Control, December 2002.L. Praly,
Asymptotic stabilization via output feedback for lower triangular systems with output dependent incremental rate.
Proceedings of the 40th IEEE Conference on Decision and Control, December 2001.L. Praly,
On Observers with State Independent Error Lyapunov Function.
Proceedings of the 5th IFAC Symposium Nonlinear Control Systems (NOLCOS 2001). Pages: 1425-1430.L. Praly, I. Kanellakopoulos,
Asymptotic stabilization via output feedback for lower triangular systems linear in the unmeasured state components.
Proceedings of the 39th IEEE Conference on Decision and Control, December 2000.X. Albouy, L. Praly,
On the use of dynamic invariants and forwarding for swinging up a spheric inverted pendulum.
Proceedings of the 39th IEEE Conference on Decision and Control, December 2000.F. Mazenc, L. Praly,
Strict Lyapunov functions for feedforward systems and applications.
Proceedings of the 39th IEEE Conference on Decision and Control, December 2000.A.R. Teel, L. Praly,
Results on converse Lyapunov functions from class-KL estimates.
Proceedings of the 38th IEEE Conference on Decision and Control. December 1999C. Prieur, L. Praly,
Uniting local and global controllers.
Proceedings of the 38th IEEE Conference on Decision and Control. December 1999A. Isidori, A. Teel, L. Praly,
Dynamic UCO controllers and semiglobal stabilization of uncertain nonminimum phase systems by output feedback.
In New Directions in Nonlinear Observer Design. Edited by H. Nijmeijer and T. Fossen, Lecture Notes in Control and Informations Sciences 244. Springer Verlag 1999.B. Hamzi, L. Praly
Ingnored input dynamics and a new characterization of control Lyapunov functions.
Proc. of ECC'99, September 1999.G. Bastin, L. Praly,
Feedback stabilization with positive control of a class of dissipative mass-balance systems.
Proceedings of the 14th IFAC World Congress (IFAC 99), Beijing , China, July, 1999, Pages: 79-84P. Bendotti, L. Praly, P. Rouchon, C.-M. Falinower,
Constrained Control for a Pressurized Water Reactor
Proceedings of the 37th IEEE Conference on Decision and Control. December 1998A. Teel, L. Praly,
On assigning the derivative of a disturbance attenuation clf.
Proceedings of the 37th IEEE Conference on Decision and Control. December 1998C. Canudas, L. Praly,
Adaptive eccentricity compensation.
Proceedings of the 37th IEEE Conference on Decision and Control. December 1998L. Praly, Z.-P. Jiang,
Further results on robust semiglobal stabilization with dynamic input uncertainties.
Proceedings of the 37th IEEE Conference on Decision and Control. December 1998F. Grognard, R. Sepulchre, G. Bastin, L. Praly,
Nested linear low-gain design for semiglobal stabilization of feedforward systems.
Proceedings of the 4th IFAC Symposium on Nonlinear Control Systems (NOLCOS 1998).R. Orsi, L. Praly, I. Mareels,
Sufficient Conditions for a Dynamical System to Possess an Unbounded Solution.
Proceedings of the 4th IFAC Symposium on Nonlinear Control Systems (NOLCOS 1998).E. Panteley, A Loria, L. Praly,
Growth Rate Conditions For Global Asymptotic Stability of Cascaded Systems.
Proceedings of the 4th IFAC Symposium on Nonlinear Control Systems (NOLCOS 1998).P. Morin, R.M. Murray, L. Praly,
Nonlinear Rescaling of Control Laws with Application to Stabilization in the Presence of Magnitude Saturation
Proceedings of the 4th IFAC Symposium on Nonlinear Control Systems (NOLCOS 1998).L. Praly and Z.P. Jiang,
Semiglobal stabilization in the presence of minimum-phase dynamic input uncertainties.
Proceedings of the 4th IFAC Symposium on Nonlinear Control Systems (NOLCOS 1998). Vol. 2 Pages: 325-330.L. Praly,
Generalized weighted homogeneity and state dependent time scale for linear controllable systems
Proceedings of the 36th IEEE Conference on Decision and Control, San Diego, 1997L. Praly, F. Mazenc,
Asymptotic tracking of a state reference for systems with a feedforward structure
Proceedings of the European Control Conference, Brussels 1997L. Praly,
On assigning a state dependant time scale to a linear system.
COSY Workshop on "Control of Nonlinear and Uncertain Systems" Zurich, January 17 - 19, 1997M.W. Spong, L. Praly,
Control of underactuated mechanical systems using switching and saturation.
In: Stephen Morse A. (eds) Control Using Logic-Based Switching.
Lecture Notes in Control and Information Sciences, vol 222. Springer, Berlin, Heidelberg. 1997Z.-P. Jiang, L. Praly,
A self-tuning robust nonlinear controller.
IFAC World Congress. San Francisco. 1996L. Praly,
Synthèse de Lyapunov: Retour d'état, retour de sortie, saturation.
Séminaire ``Développements Récents en Non-Linéaire''. GdR Automatique, ENS-Cachan, Cachan, France, 16 juin 1995R. Ortega, A. Loria, R. Kelly, L. Praly,
On passivity-based output feedback global stabilization of Euler-Lagrange systems,
Proceed. 33rd IEEE Conference on Decision and Control, December 1994.Z.-P. Jiang, A. Teel, L. Praly,
Small-gain theorem, gain assignment and applications,
Proceed. 33rd IEEE Conference on Decision and Control, December 1994.F. Mazenc, L. Praly,
Adding an integration and global asymptotic stabilization of feedforward systems,
Proceed. 33rd IEEE Conference on Decision and Control, December 1994.A.R. Teel, L. Praly,
On output feedback stabilization for systems with iss inverse dynamics and uncertainties.
Proceed. 32nd IEEE Conference on Decision and Control. December 1993A. Teel, L. Praly,
Semi-global stabilization by linear, dynamic output feedback for SISO minimum phase nonlinear systems.
12th World congress I.F.A.C., July 1993.A. Teel, L. Praly,
Tools for robust semi-global stabilization.
Proc. of the 2nd ECC, Vol. 1, Pages: 63-67. June 1993.L. Praly,
Nonlinear problems in adaptive linear control theory: a worked example.
Plenary session IC2. SIAM Conference on Control and its Applications. Minneapolis, September 1992.G. Bastin, J. Levine, L. Praly,
Exact state observers for uncertain nonlinear systems: preliminary results and examples.
Proceedings of the 2nd IFAC Symposium on Nonlinear Control Systems (NOLCOS 1992).L. Praly,
Lyapunov design of a dynamic output feedback for systems linear in their unmeasured state components.
Proceedings of the 2nd IFAC Symposium on Nonlinear Control Systems (NOLCOS 1992).Z.-P. Jiang and L. Praly,
Iterative designs of adaptive controllers for systems with nonlinear integrators
30th IEEE Conference on Decision and Control. December 1991.L. Praly,
Towards an adaptive regulator : Lyapunov design with a growth condition
30th IEEE Conference on Decision and Control. December 1991.L. Praly,
Adaptive regulation : Lyapunov design with a growth condition.
Workshop on nonlinear control of articulated flexible structures. University of California. Santa Barbara, October 1991Z.-P. Jiang and L. Praly,
Adaptive non linear stabilization and robust Lagrange stability.
European Control Conference. Grenoble. June 1991.J.-B. Pomet, L. Praly,
Adaptive non-linear control: an estimation-based algorithm.
New trends in Nonlinear Control theory, J. Descusse, M. Fliess, A. Isidori and D. Leborgne Eds.,
Springer-Verlag, 1989.
Erratum: CAI Report A230, école des Mines. January 1990.B. d'Andréa-Novel, J.-B. Pomet, L. Praly,
Adaptive stabilization for nonlinear systems in the plane.
IFAC World Congress, 1990.L. Praly, G. Bastin, J.-B. Pomet,
Adaptive stabilization of non linear systems.
Conference on Analysis of controlled dynamical systems. Lyon, France. Juillet 1990.J.-B. Pomet, L. Praly,
Adaptive control of feedback equivalent systems.
9th Int. Conf. on Analysis and Optimization of Systems, Antibes, Juin 1990.L. Praly, B. d'Andréa-Novel, J.-M. Coron,
Lyapunov design of stabilizing controllers
28th IEEE Conference on Decision and Control. December 1989.J.-B. Pomet, L. Praly,
Adaptive nonlinear regulation: Equation error from the Lyapunov equation
28th IEEE Conference on Decision and Control. December 1989.L. Praly,
Nonlinear dynamics of adaptive linear systems: an elementary example
Proceedings of the 1st IFAC Symposium on Nonlinear Control Systems (NOLCOS 1989).Y. Tang, R. Ortega, L. Praly,
On performance improvement of adaptive tuners
American Control Conference. June 1989.L. Praly,
Adaptive proportional controller: boundedness of solutions.
SIAM Conference on Control in the 90's: Achievements, Opportunities, and challenges. San Francisco. May 1989.L. Praly,
Boundedness of adaptive nonlinear systems.
SIAM Conference on Control in the 90's: Achievements, Opportunities, and challenges. San Francisco. May 1989.J.-B. Pomet, L. Praly,
Estimation based adaptive nonlinear control
27th IEEE Conference on Decision and Control. December 1988.L. Praly,
Oscillatory behavior and fixes in adaptive linear control: a worked example.
1988 IFAC Workshop on Robust Adaptive Control. Newcastle, Australie. August 1988.J.-B. Pomet, L. Praly,
Adaptive nonlinear control: an estimation-based algorithm
Année non-linéaire du CNRS: Colloque international Automatique non-linéaire. Nantes, Juin 1988.L. Praly, S.F. Lin, P.R. Kumar,
Robust adaptive minimum variance regulator.
26th IEEE Conference on Decision and Control. December 1987.L. Praly, J.-B. Pomet,
Periodic solutions in adaptive systems: the regular case.
Xth triennal IFAC World Congress, Munich, July 1987.L. Praly, M. España,
An example of oscillations in adaptive linear control.
5th Yale wokshop on applications of adaptive systems theory. May 1987.P.R. Kumar, L. Praly,
Self-tuning and convergence of parameters estimates in minimum variance tracking and linear model following
25th Conference on Decision and Control. December 1986.L. Praly,
Global stability of a direct adaptive control scheme is robust with respect to a graph topology.
Adaptive and Learning Systems: Theory and Applications,
Editor: K. S. Narendra, Plenum Press, 1986.L. Praly, S.T. Hung, D.S. Rhode,
Towards a direct adaptive scheme for a discrete-time control of a minimum phase continuous-time system.
24th Conference on Decision and Control. December 1985.L. Praly, D.S. Rhode,
Local analysis of a one step ahead adaptive controller.
24th Conference on Decision and Control. December 1985.L. Praly,
A geometric approach for the local analysis of a one step ahead adaptive controller.
4th Yale wokshop on applications of adaptive systems theory. May 1985.L. Praly,
Stochastic adaptive controllers with and without a positivity condition.
23rd IEEE Conference on Decision and Control. December 1984.L. Praly,
Robust model reference adaptive controllers, part 1: stability analysis.
23rd IEEE Conference on Decision and Control. December 1984.
pdf Submission: part1 (pdf) , part2 (pdf)L. Praly, R. Ortega,
Robustesse des algorithmes de commande adaptative
Colloque commande adaptative aspects pratiques et théoriques. Grenoble. Novembre 1984.L. Praly,
Robustness of indirect adaptive control based on pole placement design.
IFAC workshop on adaptive systems in control and signal. San Francisco. Juin 1983.L. Praly,
Robustness of model reference adaptive control.
3rd Yale workshop on applications of adaptive systems theory. June 1983.L. Praly,
Towards a direct adaptive control scheme for not necessarily minimum phase systems
22nd IEEE Conference on Decision and Control. December 1983.L. Praly,
Towards a direct adaptive control scheme for general disturbed MIMO systems
5th Int. Conf. on Analysis and Optimization of Systems, Versailles, Décembre 1982.L. Praly, M. Redjah,
An indirect adaptive control scheme for disturbed MIMO systems
21st IEEE Conference on Decision and Control, December 1982.L. Praly,
Commande adaptative indirecte multivariable: stabilité et robustesse
Colloque national du CNRS. Belle-Ile. Septembre 1982.
Proceedings version (pdf) Submitted version (pdf)L. Praly,
Closed loop transfer functions and internal stability
20th IEEE Conference on Decision and Control, December 1981
Documents déposés sur HAL (seulement)/ Documents recorded on HAL (only)
L. Praly,
Attractivité globale par bouclage de sortie: Observabilité de la non bornitude en plus de l'observabilité.
November 2021
adresse HALJ. Malaizé, L. Praly,
Rotor position estimation for permanent magnet synchronous electrical machines with salient poles.
May 2020
adresse HALL. Praly,
Observers to the aid of “strictification” of Lyapunov functions (Long version).
September 2019
adresse HALL. Praly,
Convergence of the gradient algorithm for parameter estimation of linear regression models in the continuous and discrete time cases
December 2016
adresse HALV. Andrieu, L. Praly, A. Astolfi,
High-gain observer with uniform in the initial condition finite time convergence
September 2009
adresse HALL. Praly,
An asymptotic analysis of the so called intelligent PID controller
April 2009
adresse HALV. Andrieu, L. Praly, A. Astolfi,
An output feedback for a chain of integrator suitable for the use of dynamic scaling
June 2008
adresse HALV. Andrieu, L. Praly, A. Astolfi,
Proof of Theorem 2 in "High-gain observers with updated high-gain and homogeneous correction terms"
January 2008
adresse HALL. Praly,
Normalisation en commande linéaire adaptative de B. Egardt à L. Praly
Avril 2001
adresse HALL. Praly,
General study of single input single output linear time invariant laws. Application to an adapted models algorithm control (AMAC).
June 1980
adresse HAL