Imperial College London
Portrait Picture

ProfessorAlessandroAstolfi

Faculty of Engineering, Department of Electrical and Electronic Engineering

College Consul for Faculty of Engineering & Business School
 
 
 
//

Contact

 

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

 
 
//

Assistant

 

Mrs Raluca Reynolds +44 (0)20 7594 6281

 
//

Location

 

1112Electrical EngineeringSouth Kensington Campus

//

Summary

 

Publications

Publication Type
Year
to

685 results found

Wee T-C, Astolfi A, Ming X, 2013, The Design and Control of a Bipedal Robot with Sensory Feedback, INTERNATIONAL JOURNAL OF ADVANCED ROBOTIC SYSTEMS, Vol: 10, ISSN: 1729-8814

Journal article

Ionescu TC, Astolfi A, 2013, Families of moment matching based, structure preserving approximations for linear port Hamiltonian systems, Automatica, Vol: 49, Pages: 2424-2434, ISSN: 1873-2836

In this paper we propose a solution to the problem of moment matching with preservation of the port Hamiltonian structure, in the framework of time-domain moment matching. We characterize several families of parameterized port Hamiltonian models that match the moments of a given port Hamiltonian system, at a set of finite interpolation points. We also discuss the problem of Markov parameters matching for linear systems as a moment matching problem for descriptor representations associated with the given system, at zero interpolation points. Solving this problem yields families of parameterized reduced order models that achieve Markov parameter matching. Finally, we apply these results to the port Hamiltonian case, resulting in families of parameterized reduced order port Hamiltonian approximations.

Journal article

Praly L, Carnevale D, Astolfi A, 2013, Dynamic Versus Static Weighting of Lyapunov Functions, IEEE TRANSACTIONS ON AUTOMATIC CONTROL, Vol: 58, Pages: 1557-1561, ISSN: 0018-9286

Journal article

Alawieh A, Ortega R, Pillai H, Astolfi A, Berthelot Eet al., 2013, Voltage Regulation of a Boost Converter in Discontinuous Conduction Mode A SIMPLE ROBUST ADAPTIVE FEEDBACK CONTROLLER, IEEE CONTROL SYSTEMS MAGAZINE, Vol: 33, Pages: 55-65, ISSN: 1066-033X

Journal article

Ortega R, Espinosa-Perez G, Astolfi A, 2013, Passivity-based control of AC drives: theory for the user and application examples, INTERNATIONAL JOURNAL OF CONTROL, Vol: 86, Pages: 625-635, ISSN: 0020-7179

Journal article

Sassano M, Astolfi A, 2013, Dynamic Lyapunov functions, AUTOMATICA, Vol: 49, Pages: 1058-1067, ISSN: 0005-1098

Journal article

Sassano M, Astolfi A, 2013, Approximate finite-horizon optimal control without PDEs, SYSTEMS & CONTROL LETTERS, Vol: 62, Pages: 97-103, ISSN: 0167-6911

Journal article

Scarciotti G, Astolfi A, 2013, Approximate finite-horizon optimal control for input-affine nonlinear systems with input constraints, Pages: 199-204, ISSN: 1474-6670

The finite-horizon optimal control problem with input constraints consists in controlling the state of a dynamical system over a finite time interval (possibly unknown) minimizing a cost functional, while satisfying hard constraints on the input. For linear systems the solution of the problem often relies upon the use of bang-bang control signals. For nonlinear systems the "shape" of the optimal input is in general not known. The control input can be found solving an Hamilton-Jacobi-Bellman (HJB) partial differential equation (pde): it typically consists of a combination of bang-bang arcs and singular arcs. In the paper a methodology to approximate the solution of the HJB pde arising in the finite-horizon optimal control problem with input constraints is proposed. This approximation yields a dynamic state feedback law. The theory is illustrated by means of an example: the minimum time optimal control problem for an industrial wastewater treatment plant. © IFAC.

Conference paper

Ionescu TC, Astolfi A, 2013, Moment matching for nonlinear port Hamiltonian and gradient systems, Pages: 395-399, ISSN: 1474-6670

The problem of moment matching with preservation of port Hamiltonian and gradient structure is studied. Based on the time-domain approach to linear moment matching, we characterize the (subset of) port Hamiltonian/gradient models from the set of parameterized models that match the moments of a given port Hamiltonian/gradient system, at a set of finite points. © IFAC.

Conference paper

Astolfi A, 2013, The European Journal of Control - A new beginning, 2013 European Control Conference, ECC 2013

Journal article

Ionescu TC, Astolfi A, 2013, Families of reduced order models that achieve nonlinear moment matching, American Control Conference (ACC), Publisher: IEEE, Pages: 5518-5523, ISSN: 0743-1619

Conference paper

Mylvaganam T, Sassano M, Astolfi A, 2013, Approximate Solutions to a Class of Nonlinear Differential Games Using a Shared Dynamic Extension, European Control Conference (ECC), Publisher: IEEE, Pages: 710-715

Conference paper

Scarciotti G, Praly L, Astolfi A, 2013, A small-gain-like theorem for large-scale systems, 52nd IEEE Annual Conference on Decision and Control (CDC), Publisher: IEEE, Pages: 6593-6596, ISSN: 0743-1546

Conference paper

Ionescu TC, Astolfi A, 2013, Moment matching based controller reduction for linear systems, 52nd IEEE Annual Conference on Decision and Control (CDC), Publisher: IEEE, Pages: 5528-5533, ISSN: 0743-1546

Conference paper

Carnevale D, Galeani S, Sassano M, Astolfi Aet al., 2013, Nonlinear Observer Design Techniques with Observability Functions, 52nd IEEE Annual Conference on Decision and Control (CDC), Publisher: IEEE, Pages: 31-36, ISSN: 0743-1546

Conference paper

Nunna K, Sassano M, Astolfi A, 2013, Constructive Interconnection and Damping Assignment for Port-controlled Hamiltonian, American Control Conference (ACC), Publisher: IEEE, Pages: 1810-1815, ISSN: 0743-1619

Conference paper

Caporale D, Colaneri P, Astolfi A, 2013, Adaptive nonlinear control of braking in railway vehicles, 52nd IEEE Annual Conference on Decision and Control (CDC), Publisher: IEEE, Pages: 6892-6897, ISSN: 0743-1546

Conference paper

Casagrande D, Fenu G, Pellegrino PA, Astolfi Aet al., 2013, Application of Hamiltonian dynamics to manipulator control in constrained workspace, 52nd IEEE Annual Conference on Decision and Control (CDC), Publisher: IEEE, Pages: 1634-1639, ISSN: 0743-1546

Conference paper

Tahirovic A, Astolfi A, 2013, A Convergent Solution to the Multi-vehicle Coverage Problem, American Control Conference (ACC), Publisher: IEEE, Pages: 4635-4641, ISSN: 0743-1619

Conference paper

Chang H, Pistikopoulos EN, Astolfi A, 2013, Robust Multi-parametric Model Predictive Control for Discrete-time LPV Systems, 2013 AMERICAN CONTROL CONFERENCE (ACC), Pages: 431-436, ISSN: 0743-1619

Journal article

Jiang J, Astolfi A, 2013, Shared-Control for Fully Actuated Linear Mechanical Systems, 52nd IEEE Annual Conference on Decision and Control (CDC), Publisher: IEEE, Pages: 4699-4704, ISSN: 0743-1546

Conference paper

Yalcin Y, Astolfi A, 2012, Immersion and invariance adaptive control for discrete time systems in strict feedback form, SYSTEMS & CONTROL LETTERS, Vol: 61, Pages: 1132-1137, ISSN: 0167-6911

Journal article

Sassano M, Astolfi A, 2012, Dynamic Approximate Solutions of the HJ Inequality and of the HJB Equation for Input-Affine Nonlinear Systems, IEEE TRANSACTIONS ON AUTOMATIC CONTROL, Vol: 57, Pages: 2490-2503, ISSN: 0018-9286

Journal article

Casagrande D, Sassano M, Astolfi A, 2012, Hamiltonian-Based Clustering ALGORITHMS FOR STATIC AND DYNAMIC CLUSTERING IN DATA MINING AND IMAGE PROCESSING, IEEE CONTROL SYSTEMS MAGAZINE, Vol: 32, Pages: 74-91, ISSN: 1066-033X

Journal article

Angeli D, Astolfi A, 2012, A stochastic approach to distributed power frequency control by means of smart appliances, 51st IEEE Annual Conference on Decision and Control (CDC), Publisher: IEEE, Pages: 6896-6901, ISSN: 0743-1546

Conference paper

Chew WT, Astolfi A, Ming X, 2012, Robust Control of Bipedal Humanoid (TPinokio), International Symposium on Robotics and Intelligent Sensors (IRIS), Publisher: ELSEVIER SCIENCE BV, Pages: 643-649, ISSN: 1877-7058

Conference paper

Mylvaganam T, Sassano M, Astolfi A, 2012, Approximate Solutions to a Class of Nonlinear Differential Games, 51st IEEE Annual Conference on Decision and Control (CDC), Publisher: IEEE, Pages: 6489-6494, ISSN: 0743-1546

Conference paper

Sassano M, Astolfi A, 2012, Dynamic Generalized Controllability and Observability Functions with Applications to Model Reduction, 51st IEEE Annual Conference on Decision and Control (CDC), Publisher: IEEE, Pages: 1609-1614, ISSN: 0743-1546

Conference paper

Chang H, Moog CH, Astolfi A, 2012, A Control Systems Approach to HIV Prevention with Impulsive Control Input, 51st IEEE Annual Conference on Decision and Control (CDC), Publisher: IEEE, Pages: 4912-4917, ISSN: 0743-1546

Conference paper

Ortega R, Espinosa-Perez G, Astolfi A, 2012, Theory for the User and Application Examples of the Passivity-based Control for AC Electric Machines, 21st IEEE International Symposium on Industrial Electronics (ISIE), Publisher: IEEE, Pages: 758-763, ISSN: 2163-5137

Conference paper

This data is extracted from the Web of Science and reproduced under a licence from Thomson Reuters. You may not copy or re-distribute this data in whole or in part without the written consent of the Science business of Thomson Reuters.

Request URL: http://wlsprd.imperial.ac.uk:80/respub/WEB-INF/jsp/search-html.jsp Request URI: /respub/WEB-INF/jsp/search-html.jsp Query String: limit=30&id=00157571&person=true&page=8&respub-action=search.html