Imperial College London
Portrait Picture

ProfessorAlessandroAstolfi

Faculty of Engineering, Department of Electrical and Electronic Engineering

College Consul for Faculty of Engineering & Business School
 
 
 
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Contact

 

+44 (0)20 7594 6289a.astolfi Website

 
 
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Assistant

 

Mrs Raluca Reynolds +44 (0)20 7594 6281

 
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Location

 

1112Electrical EngineeringSouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

685 results found

Garcia-Canseco E, Astolfi A, Ortega R, 2004, Interconnection and damping assignment passivity-based control: towards a constructive procedure-part ii, 43rd conference on decision and control; CDC 43, Nassau, Bahamas, Publisher: IEEE, Pages: 3418-3423

Conference paper

Kaliora G, Astolfi A, Praly L, 2004, Norm estimators and global output feedback stabilization of nonlinear systems with iss inverse dynamics, 43rd conference on decision and control; CDC 43, Nassau, Bahamas, Publisher: IEEE, Pages: 3880-3885

Conference paper

Ortega R, Barabanov N, Astolfi A, 2004, Monopoli's model reference adaptive controller is incorrect, IFAC workshop on adaptation and learning in control and signal processing, Pages: 1-12

Conference paper

Laila DS, Astolfi A, 2004, Input-to-state stability for parameterized discrete-time time-varying nonlinear systems with applications, Asian control conference, Pages: 274-282

Conference paper

Karagiannis D, Mendes E, Astolfi A, Ortega Ret al., 2003, An experimental comparison of several PWM controllers for a single-phase AC-DC converter, IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY, Vol: 11, Pages: 940-947, ISSN: 1063-6536

Journal article

Antonelli R, Astolfi A, 2003, Continuous stirred tank reactors: easy to stabilise?, AUTOMATICA, Vol: 39, Pages: 1817-1827, ISSN: 0005-1098

Journal article

Prieur C, Astolfi A, 2003, Robust stabilization of chained systems via hybrid control, IEEE TRANSACTIONS ON AUTOMATIC CONTROL, Vol: 48, Pages: 1768-1772, ISSN: 0018-9286

Journal article

Valtolina E, Astolfi A, 2003, Local robust regulation of chained systems, SYSTEMS & CONTROL LETTERS, Vol: 49, Pages: 231-238, ISSN: 0167-6911

Journal article

Antonelli R, Harmand J, Steyer JP, Astolfi Aet al., 2003, Set-point regulation of an anaerobic digestion process with bounded output feedback, IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY, Vol: 11, Pages: 495-504, ISSN: 1063-6536

Journal article

Ortega R, Hsu L, Astolfi A, 2003, Immersion and invariance adaptive control of linear multivariable systems, SYSTEMS & CONTROL LETTERS, Vol: 49, Pages: 37-47, ISSN: 0167-6911

Journal article

Karagiannis D, Astolfi A, Ortega R, 2003, Two results for adaptive output feedback stabilization of nonlinear systems, AUTOMATICA, Vol: 39, Pages: 857-866, ISSN: 0005-1098

Journal article

Astolfi A, Ortega R, 2003, Immersion and invariance: A new tool for stabilization and adaptive control of nonlinear systems, IEEE TRANSACTIONS ON AUTOMATIC CONTROL, Vol: 48, Pages: 590-606, ISSN: 0018-9286

Journal article

Ortega R, Astolfi A, Hsu L, 2003, Immersion and invariance model reference adaptive control: New parameterizations for the problem, Pages: 3239-3243, ISSN: 0743-1546

In a series of recent papers the authors have introduced a novel approach to adaptive control exploiting the geometric ideas of system immersion and manifold invariance. A unique feature of this framework is that it allows to treat in a unified manner the problems of state and parameter estimation. In this brief paper we revisit the classical model reference adaptive control from the immersion and invariance perspective and provide new parameterizations (in terms of the unknown state) to the problem. This radically new viewpoint yields very simple schemes with a clear stabilization mechanism that, in contrast with the classical solutions, does not rely on slow parameter adaptation - induced by the introduction of signal normalization.

Conference paper

Lazar M, Astolfi A, 2003, Global predictive regulation of a class of nonlinear cascaded systems with bounded input, Pages: 493-498, ISSN: 1474-6670

A predictive control algorithm globally asymptotically stabilizing a class of input-saturated nonlinear cascaded systems is presented. The developed predictive control law, which is calculated off-line as an unconstrained direct state feedback using a discrete-time linear model, is applied to the plant by means of an iterative procedure. In this way, closed-loop stability is guaranteed without increasing the computational complexity and the input constraints can be handled using projection. Moreover, the computational complexity does not depend on the length of the prediction horizon and therefore stability and regulating performance are achieved with a reduced computational burden. Finally, an example is given for illustration purposes.

Conference paper

Astolfi A, Ortega R, 2003, Invariant manifolds, asymptotic immersion and the (adaptive) stabilization of nonlinear systems, Berlin, 4th workshop on nonlinear control network (NCN4 2001), University of Sheffield, Shefield, England, 25 - 28 June 2001, Publisher: Springer-Verlag Berlin, Pages: 1-20

Conference paper

Lovera M, Astolfi A, 2003, Global magnetic attitude control of spacecraft in the presence of gravity gradient, New York, 42nd IEEE conference on decision and control, Maui, HI, 9 - 12 December 2003, Publisher: IEEE, Pages: 2722-2727

Conference paper

Astolfi A, Isidori A, Marconi L, 2003, A note on disturbance suppression for Hamiltonian systems by state feedback, Kidlington, 2nd IFAC workshop on lagrangian and hamiltonian methods for nonlinear control, Seville, Spain, 3 - 5 April 2003, Publisher: Pergamon-Elsevier Science Ltd, Pages: 211-216

Conference paper

Lazar M, Astolfi A, 2003, Global predictive regulation of a class of cascaded nonlinear systems with bounded control, IFAC symposium on robust control design

Conference paper

Astolfi A, Praly L, 2003, Global complete observability and output-to-state stability imply the existence of a globally convergent observer, New York, 42nd IEEE conference on decision and control, Maui, HI, 9 - 12 December 2003, Publisher: IEEE, Pages: 1562-1567

Conference paper

Rodriguez H, Astolfi A, Ortega R, 2003, Adaptive partial state feedback stabilization of a class of electromechanical systems via immersion and invariance, American control conference, Denver, CO, Publisher: IEEE, Pages: 3293-3298

Conference paper

Ortega R, Astolfi A, Hsu L, 2003, An immersion and invariance approach to model reference adaptive control, 22nd Chinese control conference, 11 - 14 August 2003, Yichang, Hubei, China, Pages: 685-689

Conference paper

Kaliora G, Astolfi A, 2003, On the equivalence to feedforward forms, European control conference 2003

Conference paper

Astolfi A, Gordillo F, Schaft AJ, 2003, Lagrangian and Hamiltonian methods for nonlinear control: a proceedings volume from the 2nd IFAC Workshop, Seville, Spain, 3-5 April, 2003, Publisher: Elsevier, ISBN: 9780080442785

Book

Astolfi A, Colaneri P, 2002, A Hamilton-Jacobi setup for the static output feedback stabilization of nonlinear systems, IEEE TRANSACTIONS ON AUTOMATIC CONTROL, Vol: 47, Pages: 2038-2041, ISSN: 0018-9286

Journal article

Ortega R, Astolfi A, Barabanov NE, 2002, Nonlinear PI control of uncertain systems: an alternative to parameter adaptation, SYSTEMS & CONTROL LETTERS, Vol: 47, Pages: 259-278, ISSN: 0167-6911

Journal article

Astolfi A, Hsu L, Netto MS, Ortega Ret al., 2002, Two solutions to the adaptive visual servoing problem, IEEE TRANSACTIONS ON ROBOTICS AND AUTOMATION, Vol: 18, Pages: 387-392, ISSN: 1042-296X

Journal article

Astolfi A, Chhabra D, Ortega R, 2002, Asymptotic stabilization of some equilibria of an underactuated underwater vehicle, SYSTEMS & CONTROL LETTERS, Vol: 45, Pages: 193-206, ISSN: 0167-6911

Journal article

Prat S, Astolfi A, 2002, Local static output feedback stabilization of a class of minimum-phase nonlinear systems, Pages: 233-238, ISSN: 1474-6670

The problem of (local) static output feedback stabilization for a class of minimum phase relative degree two systems is studied. It is shown that, under natural assumptions, it is possible to design a stabilizing static output feedback control law and to give an estimate of the resulting region of attraction. The general results are illustrated via examples.

Conference paper

Astolfi A, Ortega R, 2002, Energy-based stabilization of angular velocity of rigid body in failure configuration, JOURNAL OF GUIDANCE CONTROL AND DYNAMICS, Vol: 25, Pages: 184-187, ISSN: 0731-5090

Journal article

Astolfi A, Escobar G, Ortega R, Stankovic AMet al., 2002, An adaptive controller for the TCSC based on the immersion and invariance design technique (Session 10, paper 4), 14th power systems computation conference, Sevilla, Spain, Pages: 1-5

Conference paper

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