Homepage of Wim Michiels

Who am I

Contact Information

Wim Michiels (prof. dr. ir.) Department of Computer Science K.U. Leuven Celestijnenlaan 200A 3001 Heverlee Belgium Send me an e-mail Phone: +32 16 327064 Fax: +32 16 327996 Office: A02-22

News

• Merry Christmas
• Doctoral course on time-delay system
  For more info click here.
  
• Positions available.
  If you are interested to work in my team as PhD student send me your cv and a motivation.
  
• Ben je geïnteresseerd om na je Master studies een doctoraat te maken rond toegepaste wiskunde of systemen en controle? Contacteer me dan.
  
• The Centre of Excellence OPTEC has been extended for 7 years.
• Plenary at the International Conference on Computational and Applied Mathematics (ICCAM 2010)
• 14th Belgian - French - German Conference on Optimization (BFG'09)
  September 14-18, 2009, K.U.Leuven, Belgium
  Conference website    
• Plenary at the 9th IFAC Workshop on Time-Delay Systems
• Plenary at the 2nd IFAC Conference on Analysis and Control of Chaotic Systems
• Invited speaker at the Workshop on Delay Differential Equations. From Theory to Applications
• Inaugural Lecture

Research

Research interests:

• Dynamical systems
  • Bifurcation analysis
• (Numerical) linear algebra
• Scientific computing
• Control: theory, applications, and numerical tools.
  In particular, control of infinite dimensional systems
  • Partial differential equations
  • Functional differential equations (delay/neutral)
  Emphasis lies on stability/stabilization issues, robust and
  H-infinity control, of single agent and multi-agent systems
• Optimization: algorithms, and control applications

Projects:

• Research Foundation Flanders (FWO) (2011-2015) "Fixed-order controller design for linear infinite-dimensional and parameter-varying systems, optimizing stability and H2 / H-infinity criteria"
• Research Foundation Flanders (FWO) (2011-2015) "Modeling and simulation of power electronic systems in the complementarity systems framework"
• Research Council K.U.Leuven - KUL/BOF ST1 (2009-2013) "Control and optimization of large-scale systems and networks with delays"
• BELSPO IPA VI/4, DYSCO: Dynamical Systems, Control and Optimization (2007-2011)
  Project page
  
• OPTEC - K.U.Leuven Center of Excellence on Optimization in Engineering (phase 1: 2005-2010, phase 2: 2010-2017)
  Project page
  
• DBOF - PhD grants for international collaboration with countries outside the EU (2010-2013)
• Bilateral Project Research Foundation Flanders - Czech Academy of Sciences (2009) "Fixed-structure controller design for time-delay systems, with vibration control applications"
• Bilateral Project Flanders-France Tournesol (2007-2008): "Distributed delay in dynamical systems: Analysis and Applications"

Service to the community

• Associate Editor, Systems and Control Letters (2010- )

Research Associates

• Jelle Peeters (5/2011 - )
• Roel Van Beeumen (10/2011 - )
• Gijs Hilhorst (09/2011 - )
• Hakki Ulas Unal (01/2012 - )

Former members

• Joris Vanbiervliet
• Elias Jarlebring
• Zhen Wu
• Vincent Van Assche
• Suat Gumussoy

Publications

PhD thesis

Wim Michiels
Stability and stabilization of time-delay systems
Katholieke Universiteit Leuven, May 2002, 238+lxii pages
ISBN 90-5682-349-3
Thesis page

Books

1. Wim Michiels and Silviu-Iulian Niculescu
   Stability and stabilization of time-delay systems. An eigenvalue based approach
   Advances in Design and Control 12
   SIAM Publications, Philadelphia, 2007, xxii+378 pages
   ISBN 978-0-898716-32-0
   Publisher's page

Edited books

1. W. Michiels and D. Roose (Eds.)
   Time-Delay Systems 2004
   IFAC Proceedings Volumes
   Elsevier Ltd, Oxford, UK, 2005, 278 pages
   ISBN 008-044583-7
   
2. J.J. Loiseau, W. Michiels, S.-I. Niculescu and R. Sipahi (Eds.)
   Topics in Delay Systems. Analysis, Algorithms, and Control
   Lecture Notes in Control and Information Sciences, Vol. 388, Springer Verlag, 2009.
   ISBN 978-3-642-02896-0
   Publisher's page
   
3. M. Dieh, F. Glineur, E. Jarlebring and W. Michiels (Eds.)
   Recent advances in optimization and its applications in engineering
   Springer Verlag, 2010.
   Publisher's page

Journal Papers

1. T.Van Craenenbroeck,W.Michiels,D.Van Dommelen,K.Lust
   Bifurcation analysis of three-phase ferroresonant oscillations in ungrounded power systems
   IEEE Transactions on Power Delivery, Vol.14, No.2, 1999, pp.531-536.
   [PDF]
2. W.Michiels,D.Roose
   Sensitivity to perturbations in variable structure systems
   Journal of Computational and Applied Mathematics, Vol.132, 2002, pp.127-140.
   [PS]
3. W.Michiels,K.Engelborghs,D.Roose,D.Dochain
   Sensitivity to infinitesimal delays in neutral equations
   SIAM Journal on Control and Optimization, Vol.40, No.4, 2002, pp.1134 - 1158.
   [PS]
4. W.Michiels,R.Sepulchre,D.Roose
   Stability of perturbed delay differential equations and stabilization of nonlinear cascade systems
   SIAM Journal on Control and Optimization, Vol.40, No.3, 2002, pp.661-680.
   [PS]
5. W.Michiels,K.Engelborghs,P.Vansevenant,D.Roose
   Continuous pole placement method for delay equations
   Automatica, Vol.38, No.5, 2002, pp.747-761.
   [PDF]
6. L.Moreau,W.Michiels,D.Aeyels,D.Roose
   Robustness of nonlinear delay equations w.r.t. input perturbations, a trajectory based approach
   Mathematics of Control, Signals, and Systems (MCSS), Vol.15, No.4, 2002, pp.316-335.
   [PS]
7. W.Michiels,D.Roose
   Limitations of delayed state feedback: a numerical study
   International Journal of Bifurcation and Chaos, Vol.12, No.6, 2002, pp.1309-1320.
   [PS]
8. W.Michiels,S.-I.Niculescu
   On the delay sensitivity of Smith Predictors
   International Journal of Systems Science, Vol.34, No.8-9, 2003, pp.543-552 (invited paper)
   [PS]
9. W.Michiels,D.Roose
   An eigenvalue based approach for the robust stabilization of linear time-delay systems
   International Journal of Control, Vol.76, No.7, 2003, pp.678-686.
   [PS]
10. S.-I.Niculescu, W.Michiels
    Stabilizing a chain of integrators using multiple delays
    IEEE Transactions on Automatic Control, Vol.49, No.5, 2004, pp.802-807.
    [PDF]
11. S.Mondie,W.Michiels
    Finte spectrum assignment of unstable time-delay systems with a safe implementation.
    IEEE Transactions on Automatic Control, Vol.48, No.12, 2003, pp.2207-2212.
    [PDF]
12. V.Kharitonov,S.-I.Niculescu,J.Moreno,W.Michiels
    Static output feedback stabilization: necessary conditions for multiple delay controllers
    IEEE Transactions on Automatic Control, Vol.50 No.1, 2005, pp.82-86.
    [PS]
13. W.Michiels,S.-I.Niculescu,L.Moreau
    Using delays and time-varying gains to improve the output feedback stabilizability of linear systems: a comparison
    IMA Journal of Mathematical Control and Information, Vol.21, No.4, 2004, pp.393-418.
    [PS]
14. W.Michiels,V.Van Assche,S.-I.Niculescu.
    Stabilization of time-delay systems with a controlled, time-varying delay and applications
    IEEE Transactions on Automatic Control, Vol.50, No.4, 2005, pp.493-504.
    [PDF]
15. W.Michiels,T.Vyhlidal
    An eigenvalue based approach to the stabilization of time-delay systems of neutral type.
    Automatica, Vol.41, No.6, 2005, pp.991-998.
    [PDF]
16. W.Michiels,S.-I. Niculescu
    Stability analysis of a fluid flow model for TCP like behavior.
    International Journal of Bifurcation and Chaos, Vol.15, No.7, 2005, pp.2277-2282.
    [PS]
17. W.Michiels,K.Green,T.Wagenknecht,S.-I.Niculescu
    Pseudospectra and stability radii for analytic matrix functions with application to time-delay systems
    Linear Algebra and its Applications, Vol.418, No.1, 2006, pp.315-335.
    [PS]
18. W.Michiels,D.Melchor-Aguillar,S.-I.Niculescu
    Stability analysis of some classes of TCP/AQM networks
    International Journal of Control, Vol.79, No.9, 2006, pp.1134-1144.
    [PDF]
19. E.I.Verriest and W.Michiels
    Inverse Routh table construction and stability of delay differential equations
    Systems and Control Letters, Vol.55, No.9, 2006, pp.711-718.
    [PS]
20. W. Michiels and S.-I. Niculescu
    Characterization of delay-independent stability and the delay interference phenomen
    SIAM Journal on Control and Optimization, Vol.45, No.6, 2007, pp.2138-2155.
    [PDF]
21. T. Wagenknecht, K.Green, S.Adhikari,W.Michiels
    Structured pseudospectra and random eigenvalue problems in vibrating systems
    Journal of the American Institute of Aeronautics and Astronautics, Vol.44, No.10, 2006, pp.2404-2414.
    [PS]
22. T.Wagenknecht,W.Michiels,K.Green
    Structured pseudospectra for matrix nonlinear matrix functions
    Journal of Computational and Applied Mathematics, Vol.212 , No.2, 2008, pp.245-259.
    [PDF]
23. J. Vanbiervliet, K.Verheyden,W. Michiels,S.Vandewalle
    A nonsmooth optimization approach for the stabilization of time-delay systems
    ESAIM Control, Optimisation and Calcalus of Variations, Vol.14, No.3, 2008, pp.478-493.
    [PDF]
24. W. Michiels
    Stability analysis of oscillatory systems subject to large delays: a synchronization point of view
    Journal of Vibration and Control (invited paper), Vol.16, No.7/8, 2010, pp.1087-1111.
    [PDF]
25. W. Michiels, C.I. Morarescu and S.-I. Niculescu
    Consensus problems with distributed delays, with application to traffic flow models
    SIAM Journal on Control and Optimization. Special Issue on Control and Optimization in Cooperative Networks, Vol.48, No.1, 2009, pp. 77-101.
    [PDF]
26. W.Michiels,T.Vhylidal,H.Huijberts,H.Nijmeijer
    Stabilizability and stability robustness of state derivative feedback controllers
    SIAM Journal on Control and Optimization. Vol.47 , No.6, 2009, pp.3100-3117.
    [PDF]
27. W.Michiels,T.Vhylidal,P.Zitek,H.Nijmeijer,D.Henrion
    Strong stability of neutral equations with an arbitrary delay dependency structure
    SIAM Journal on Control and Optimization. Vol.48 , No.2, 2009, pp.763-786.
    [PDF]
28. T.Vyhlidal,W.Michiels,P.McGahan,P.Zitek
    Stability impact of small delays in state derivative feedback applied to vibration suppression
    Control Engineering Practice, Vol. 17, 2009, pp.382-393
    [PDF]
29. J.Vanbiervliet,B.Vandereycken,W.Michiels,S.Vandewalle,M.Diehl
    Smoothed spectral abscissa for robust stability optimization
    SIAM Journal on Optimization, Vol. 20, No. 1, 2009, pp.156-171.
    [PDF]
30. H.Huijberts,W.Michiels,H.Nijmeijer
    Stabilisability via time-delayed feedback: an eigenvalue optimisation approach
    SIAM Journal of Applied Dynamical Systems. Vol.8 , No.1, 2009, pp.1-20.
    [PDF]
31. W.Michiels, E.Fridman, S.-I.Niculescu
    Robustness assessment via stability radii in delay parameters
    International Journal of Robust and Nonlinear Control. Vol.19, 2009, pp.1405-1426.
    [PDF]
32. E.I. Verriest and W. Michiels
    Stability analysis of linear systems with stochastically varying delays
    Systems and Control Letter. Vol.58, No.10-11, 2009, pp.783-791
    [PDF]
33. W. Michiels and H. Nijmeijer
    Synchronization in networks of delay-coupled nonlinear oscillators: An approach based on the stability analysis of synchronized equilibria
    Chaos, Vol.19, 033110, 2009.
    [PDF]
34. W. Michiels and S. Gumussoy
    Characterization and computation of H-infinity norms of time-delay systems
    SIAM Journal on Matrix Analysis and Applications, 2010, Vol.31, No.4, 2010, 2093-2115
    [PDF]
35. W. Michiels, T. Vyhlidal and P. Zitek
    Control design for time-delay systems based on quasi-direct pole placement
    Journal of Process Control. Vol.20, No.3, 2010, pp.337-343
    [PDF]
36. E. Jarlebring and W. Michiels
    Invariance properties in the root sensitivity of time-delay systems with double imaginary roots
    Automatica. Vol.46, No.6, 2010, pp.1112-1115
    [PDF]
37. S. Gumussoy and W. Michiels
    A predictor-corrector approach for computing the pseudospectral abscissa of time-delay systems
    Automatica. Vol.46, No.4 ,2010, pp.657-664 (regular paper)
    [PDF]
38. E. Jarlebring, J. Vanbiervliet and W. Michiels
    Characterizing and computing the L2 norm of time-delay systems by solving the delay Lyapunov equation
    IEEE Transactions on Automatic Control. Vol.56, No.4, pp.814-825, 2011 (regular paper).
    [PDF]
39. T.Vyhlidal,W.Michiels,P.McGahan
    Synthesis of a strongly stable state-derivatie controller for a time delay system using constrained nonsmooth optimization
    IMA Journal of Mathematical Control and Information, Vol.27, No.4, pp.437-455, 2010. (special issue on time-delay systems).
    Abstract
40. E. Jarlebring, S. Kvaal and W. Michiels
    Computing all pairs (lambda,mu) such that lambda is a double eigenvalue of A+B mu.
    SIAM Journal on Matrix Analysis and Applications, 2011, accepted.
    Abstract
41. W. Michiels and E.I. Verriest
    A look at fast varying delays from a systems theory point of view
    Submitted.
    Abstract
42. E. Jarlebring, K. Meerbergen and W. Michiels
    A Krylov method for the delay eigenvalue problem
    SIAM Journal on Scientific Computing. Vol.32, No.6, 2010, pp.3278-3300.
    [PDF]
43. R. Sipahi, S.-I. Niculescu, C.T. Abdallah, W. Michiels and K. Gu
    Stability and stabilization of systems with time delay. Limitations and opportunities.
    Control Systems Magazine, Vol.31, No.1, pp.38-65, 2011.
    Abstract
44. J. Vanbiervliet, W. Michiels and E. Jarlebring
    Using spectral discretization for the optimal H-2 design of time-delay systems
    International Journal of Control, Vol.84, No.2, 228-241, 2011.
    Abstract
45. W. Michiels, E. Jarlebring and K. Meerbergen
    Krylov based model order reduction of time-delay systems
    SIAM Journal on Matrix Analysis and Applications, 2011, accepted.
    Abstract
46. E. Jarlebring and W. Michiels
    Analyzing the convergence factor of residual inverse iteration
    BIT Numerical Mathematics, 2011, accepted.
    Abstract
47. S. Kvaal, E. Jarlebring and W. Michiels
    Computation of singularities and radius of convergence of perturbation series
    Physical Review A, Vol. 83, 032505, 2011.
    Abstract
48. E. Jarlebring, W. Michiels and K. Meerbergen
    A linear eigenvalue algorithm for the nonlinear eigenvalue problem
    Numerische Mathmatic, 2012, accepted.
    Abstract
49. S. Gumussoy and W. Michiels
    Fixed-order H-infinity control for interconnected systems using delay differential algebraic equations
    SIAM Journal on Control and Optimization, 2011, accepted.
    Abstract
50. W. Michiels
    Spectrum based stability analysis and stabilization of systems described by delay differential algebraic equations
    IET - Control Theory and Applications, 2011, accepted.
    Abstract
51. Q. Tran Dinh, S. Gumussoy, W. Michiels and M. Diehl
    Combining convex-concave decompositions and linearization approaches for solving BMIs, with application to static output feedback
    IEEE Transactions on Automatic Control, 2011, accepted (regular paper).
    Abstract
52. S. Gumussoy and W. Michiels
    Root-Locus for SISO dead-time Systems: A continuation based approach
    Automatica, 2011, accepted (regular paper)
    Abstract
53. Z. Wu and W. Michiels
    Reliably computing all characteristic roots of delay differential equations in a given right half plane using a spectral method
    Submitted.
    Abstract
54. E. Steur, W. Michiels, H. Huijberts and H. Nijmeijer
    Networks of diffusively time-delay coupled systems: Synchronization and its relation to the network topology
    Submitted.
    Abstract
55. E. Jarlebring, T. Damm and W. Michiels
    Model reduction of time-delay systems using position balancing and delay Lyapunov equations
    Submitted.
    Abstract
56. E. Jarlebring, K. Meerbergen and W. Michiels
    Computing a partial Schur factorization of nonlinear eigenvalue problems using the infinite Arnoldi method
    Submitted.
    Abstract
57. W. Michiels and N. Guglielmi
    An iterative method for computing the pseudospectral abscissa for a class of nonlinear eigenvalue problems
    Submitted.
    Abstract

Chapters in books

1. W.Michiels,S.Mondie,D.Roose and M.Dambrine
   The effect of approximating distributed delay control laws on stability
   In S.-I. Niculescu and K. Gu, Eds., 'Advances in Time-Delay Systems', LNCSE, vol. 38, Springer Verlag, 2004, pp. 207-225.
   Abstract
2. D.Roose,T.Luzyanina,K.Engelborghs and W. Michiels
   Software for stability and bifurcation analysis of delay differential equations and applications to stabilization
   In S.-I. Niculescu and K. Gu, Eds., 'Advances in Time-Delay Systems', LNCSE, vol. 38, Springer Verlag, 2004, pp. 167-182.
   Abstract
3. S.-I.Niculescu,W.Michiels,D.Melchor-Aguillar,T.Luzyanina,F.Mazenc,K.Gu and F.Chatte
   Delay effects on the asymptotic stability of various fluid models in high performance networks
   In S.Tarbouriech, C.T. Abdallah and J. Chiasson, Eds. 'Advances in Communication Control Networks', LNCIS, vol. 308, Springer Verlag, 2004, pp. 87-110.
   Abstract
4. W. Michiels, K. Verheyden and S.-I. Niculescu
   Mathematical and computational tools for the stability analysis of time-varying delay systems and applications
   In J.J. Loiseau and J. Chiasson, Eds. 'Applications of Time-Delay Systems', LNCIS, vol. 352, Springer Verlag, 2007, pp. 199-216.
   Abstract
5. S.-I.Niculescu,W.Michiels,K.Gu,C.T.Abdallah
   Delay effects on output feedback control of dynamical systems.
   in F.M. Atay, Ed. 'Complex Time-Delay Systems', Springer Verlag, 2009, pp. 261-284.
   Abstract
6. S.-I.Niculescu,C.I.Morarescu,W.Michiels,K.Gu
   Geometric Ideas in the Stability Analysis of Delay Models in Biosciences.
   In I. Queinnec, S. Tarbouriech, G. Garcia and S.-I. Niculescu, Eds. 'Biology and Control Theory: Current Challenges', LNCIS, vol. 357, Springer Verslag, 2007, 217-259.
   Abstract
7. E.I. Verriest, W. Michiels
   On moment stability of linear systems with a stochastic delay variation
   in J.J.Loiseau et al, Eds 'Topics in Time Delay Systems. Analysis, Algorithms and Control', LNCIS, vol.388, Springer Verlag, 2009, 3-14.
   Abstract
8. S. Gumussoy, W.Michiels
   Fixed-order H-infinity optimization of time-delay systems
   In Diehl et al (eds) Recent Advances in Optimization and Its Applications in Engineering. Springer Verlag. Accepted.
   Abstract
9. W.Michiels
   Design of fixed-order stabilizing and H2-H-infinity optimal controllers: An eigenvalue optimization approach. In R.Sipahi,T.Vyhlidal,P.Pepe,S.-I.Niculescu, Eds. 'Time Delay Systems - Methods, Applications and New Trends', 2011. To appear.
   Abstract
10. E.Jarlebring,W.Michiels,K.Meerbergen
    The infinite Arnoldi method and an application to time-delay systems with distributed delay In R.Sipahi,T.Vyhlidal,P.Pepe,S.-I.Niculescu,Eds. 'Time Delay Systems - Methods, Applications and New Trends', 2011. To appear.
    Abstract

Conference Papers

1. W.Michiels,R.Sepulchre,D.Roose
   Robustness of nonlinear delay equations wrt. bounded input perturbations
   Proceedings of the Fourteenth International Symposium of Mathematical Theory of Networks and Systems, 2000.
2. W.Michiels,K.Engelborghs,P.Vansevenant,D.Roose
   Continous pole placement for delay equations
   Proceedings of the 2nd Workshop on Linear Time-Delay Systems, 2000.
3. W.Michiels,D.Roose
   Time-delay compensation in unstable plants using delayed state feedback
   Proceedings of the 40th IEEE Conference on Decision and Control, 2001.
4. W.Michiels,D.Roose
   Global stabilization of multiple integrators with time delay and input constraints
   Proceedings of the 3th Workshop on Time-Delay Systems, 2001.
5. W.Michiels,P.Vansevenant,D.Roose
   Une approche alternative pour la stabilisation robuste des systèmes linéaires à retards
   Actes de la Conférence Internationale Francophone d'Automatique,2002 (in minisymposium, organised by M.Dambrine and O.Sename).
6. W.Michiels,R.Sepulchre,D.Roose,L.Moreau
   A perturbation approach to the stabilization of nonlinear cascade systems with time-delay
   Proceedings of the 41th IEEE Conference on Decision and Control, 2002 (invited session, organised by SIAM).
7. S.-I.Niculescu,W.Michiels
   Some remarks on stabilizing a chain of integrators using multiple delays
   Proceedings of the 2003 American Control Conference, 2003.
8. D.Roose,T.Luzyanina,K.Engelborghs,W.Michiels
   Software for stability and bifurcation analysis of delay differential equations and applications to stabilization
   Proceedings of the joint CNRS-NSF Workshop: Advances in control of time-delay systems, 2003 (invited lecture).
9. W.Michiels,S.Mondie,D.Roose
   Necessary and sufficient conditions for a safe implementation of distributed delay control laws
   Proceedings of the joint CNRS-NSF Workshop: Advances in control of time-delay systems, 2003 (invited lecture).
10. V.Kharitonov,S.-I.Niculescu,J.Moreno,W.Michiels
    Some remarks on the static output feedback stabilization problem: necessary conditions for multiple delay controllers
    Proceedings of the 2003 European Control Conference, 2003.
11. S. Mondie,W.Michiels
    A safe implementation for finite spectrum assignment: robustness analysis
    Proceedings of the 42nd IEEE Conference on Decision and Control, 2003.
12. W.Michiels,S.-I.Niculescu,L.Moreau
    Improving the output feedback stabilizability of linear systems by using delays and time-varying gains: a comparison
    Proceedings of the 4th IFAC Workshop on Time-Delay Systems, 2003.
13. E.I. Verriest,W.Michiels
    Routh Hurwitz criterion and stability of neutral systems
    Proceedings of the 42nd IEEE Conference on Decision and Control, 2003.
14. W.Michiels, S.I. Niculescu
    Stability and bifurcation analysis of some fluid flow model of TCP behavior
    Proceedings of the 16th International Symposium on Mathematical Theory of Networks and Systems, 2004 (in minisymposium organized by G. Freiling).
15. W.Michiels, V.Van Assche, S.I.Niculescu
    Time-delay systems with a controlled time-varying delay: stability analysis and applications
    Proceeings of the 43rd IEEE Conference on Decision and Control, 2004.
16. T.Vyhlidal, W.Michiels
    Continuous pole placement for neutral systems
    Proceedings of the 5th IFAC Workshop on Time-Delay Systems, 2004.
17. V.Van Assche,A.Ganguli,W.Michiels
    Practical stability analysis of systems with delay and periodic coefficients
    Proceedings of the 5th IFAC Workshop on Time-Delay Systems, 2004.
18. S.-I.Niculescu, W.Michiels, D.Melchor-Aguillar,F.Mazenc,F.Chatte
    Stability analysis in high performance networks: a time-domain approach
    Proceedings of the 2004 IASTED Conference on Applied Simulation and Modelling, 2004.
19. W.Michiels,T.Plomteux,D.Roose
    Robust stabilization of linear time delay systems via the optimization of real stability radii
    Proceedings of the 2005 IFAC World Congress, 2005 (in mini-symposium organized by P.Zitek and T.Vyhlidal).
20. W.Michiels,V.Van Assche,S.-I.Niculescu,K.Verheyden.
    Mathematical and computational tools for the stability analysis of time-varying delay systems and applications in mechanical engineering.
    2nd CNRS-NSF Workshop 'Applications of Time-Delay Systems', 2004 (invited lecture).
21. W.Michiels,K.Green,T.Wagenknecht,S.-I.Niculescu
    Pseudospectra of analytic matrix funtion and applications to time-delay systems
    Proceedings of the joint IEEE Conference on Decision and Control / European Control Conference, 2005.
22. W.Michiels,S.-I. Niculescu
    Delay-independent stability and delay interference phenomena
    Proceedings of the 17th International Symposium on Mathematical Theory of Networks and Systems, 2006.
23. J.Vanbiervliet,W.Michiels,S.Vandewalle
    Stabilization of time-delay systems using nonsmooth optimization techniques.
    International Journal of Tomography & Statistics. Volume 6, Nr. S07, 2007.
    Special issue devoted to the proceedings of the 13th IFAC Workshop on Control Applications of Optimisation.
24. C.-I.Morarescu,S.-I. Niculescu,W. Michiels
    Asymptotic stability of some distributed delay systems: An algebraic approach.
    International Journal of Tomography & Statistics. Volume 6, Nr. S07, 2007.
    Special issue devoted to the proceedings of the 13th IFAC Workshop on Control Applications of Optimisation.
25. W.Michiels,T.Wagenknecht,K. Green
    Structured pseudospectra for matrix functions: theory and application
    Proceedings of the 6th IFAC Workshop on Time-Delay Systems, 2006 (in mini-symposium organized by N.Olgac and T.Vyhlidal).
    
26. W.Michiels,C.I.Morarescu, S.-I.Niculescu
    Consensus problems for car following models with distributed delays.
    Proceedings of the 2007 European Control Conference, 2007.
27. T.Vhylidal,W.Michiels,P.McGahan,P.Zitek
    Stability impact of the latency in the state derivative feedback
    Proceedings of the 16th International Conference on Process Control, 2007.
28. W.Michiels,E.Fridman, S.-I.Niculescu
    On stability radii in delay parameters.
    Proceedings of the 7th IFAC Workshop on Time-Delay Systems, 2007.
29. W.Michiels
    Mechanisms behind the stability properties of oscillatory systems with large delays.
    Proceedings of the 46th IEEE Conference on Decision and Control, 2007. Accepted.
30. W. Michiels,T.Vyhlidal,H.Huijberts,H.Nijmeijer
    Stabilizability by state derivative feedback: robustness aspect.
    Proceedings of the 18th Symposium on Mathematical Theory for Networks and Systems, 2008. Accepted.
31. W. Michiels,T.Vyhlidal,H.Nijmeijer,D.Henrion
    Strong stability of neutral equations with dependent delays
    Proceedings of the 18th Symposium on Mathematical Theory for Networks and Systems, 2008. Accepted.
32. W.Michiels,H.Nijmeijer
    Synchronization in networks of nonlinear oscillators with coupling delays
    Proceedings of the 47th IEEE Conference on Decision and Control, 2008. Accepted.
33. H.Huijberts,W.Michiels,H.Nijmeijer
    On the characterisation of stabilisability by means of time-delayed feedback control
    Proceedings of the 47th IEEE Conference on Decision and Control, 2008. Accepted.
34. C.Mendez,W.Michiels,S-I.Niculescu
    Further Remarks on Stabilizing Chains of Integrators by Using Network Delays
    Proceedings of the 2009 European Control Conference, 2008. Accepted.
35. J.Vanbiervliet,W.Michiels,S.Vandewalle
    Smooth stabilization and optimal H2 design
    Proceedings of the 2009 IFAC Workshop on Control Applications of Optimization, 2009. Accepted.
36. T.Vyhlidal,W.Michiels,P.Zitek
    Quasi-direct pole placement for time delay systems applied to a heat transfer set-up
    Proceedings of the 8th IFAC Workshop on Time-Delay Systems, 2009. Accepted.
37. P.MacGahan,T.Vyhlidal,W.Michiels
    Optimization based synthesis of state derivative feedback controllers for retarded systems
    Proceedings of the 8th IFAC Workshop on Time-Delay Systems, 2009. Accepted (in minisymposium).
38. S.Gumussoy,W.Michiels
    Computing the pseudospectral abscissa of time-delay systems
    Proceedings of the 8th IFAC Workshop on Time-Delay Systems, 2009. Accepted.
39. E.Jarlebring,W.Michiels
    Invariance properties in the root sensitivity of time-delay systems with double imaginary roots
    Proceedings of the 8th IFAC Workshop on Time-Delay Systems, 2009. Accepted.
40. S.Gumussoy,W.Michiels
    Computing H-infininty norms of time-delay systems
    Proceedings of the 48th IEEE Conference on Decision and Control, 2009. Accepted.
41. E.Jarlebring,K.Meerbergen,W.Michiels
    An Arnoldi method with structured starting vectors for the delay eigenvalue problem
    Proceedings of the 9th IFAC Workshop on Time Delay Systems, Prague, 2010. Accepted (in minisymposium).
42. S.Gumussoy,W.Michiels
    Continuation Based Computation of Root-Locus for SISO Dead-Time Systems
    Proceedings of the 9th IFAC Workshop on Time Delay Systems, Prague, 2010. Accepted (in minisymposium).
43. E.Jarlebring,J.Vanbiervliet,W.Michiels
    Explicit expressions for the H2 norm of time-delay systems based on the delay Lyapunov equation
    Proceedings of the 49th IEEE Conference on Decision and Control, 2010. Accepted.
44. S.Gumussoy,W.Michiels
    On the sensitivity of the H-infinity norm of interconnected systems with time-delays.
    Proceedings of the 18th IFAC World Congress, 2011, accepted (in minisymposium).
45. S.Gumussoy,W.Michiels
    Fixed-order H-infinity control of interconnected systems with time-delays.
    Proceedings of the 18th IFAC World Congress, 2011, accepted (in minisymposium).
46. W.Michiels,E.Jarlebring,K.Meerbergen
    A projection approach for model reduction of large-scale time-delay systems
    Proceedings of the 50th IEEE Conference on Decision and Control and European Control Conference, 2011. Accepted.
47. W.Michiels,E.I.Verriest
    A systems theoretic framework of fast varying and state dependent delays.
    Proceedings of the 50th IEEE Conference on Decision and Control and European Control Conference, 2011. Accepted.

Others

• W.Michiels,D.Roose
  Superstable limit cycles in variable structure systems

Master's thesis

• W.Michiels
  Bifurcation analysis of 3-phase electrical distribution networks with ferroresonance, 1997

Teaching

Courses on PhD Level

• Stability and Stabilization of Time-Delay Systems
  Paris Graduate School on Control
  Paris, France, April 2006.
  
• Stability and Control of Time-Delay Systems
  Dutch Institute of Systems and Control
  Utrecht, the Netherlands, November-December 2007
  Course material
• Stability and Control of Time-Delay Systems
  SOCN Graduate School of Systems, Control, Optimization, and Networks
  Leuven, Belgium, November-December 2011
  Course material

Courses @ K.U.Leuven

• Technische Wiskunde / Engineering Mathematics
  Course in the Master Program on Mathematical Engineering of the K.U.Leuven.
• Modellering en Simulatie / Modelling and Simulation
  Course in the Bachelor Program on Informatics of the K.U.Leuven.

Supervision of Master's theses

• Patrick Vansevenant
  Continue polenplaatsing voor systemen met tijdsvertragingen (1998-1999)
  
• Thomas Plomteux
  Stabiliteitsstralen voor systemen met tijdsvertragingen (2002-2003)

Personal information

• My Family