Investigation of the theoreticaly reachable best control algorithms  Page description

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Details of project

  
Identifier
46220
Type K
Principal investigator Keviczky, László
Title in Hungarian Az elméletileg elérhető legjobb irányítás algoritmusainak kutatása
Title in English Investigation of the theoreticaly reachable best control algorithms
Panel Informatics and Electrical Engineering
Department or equivalent HUN-REN Institute for Computer Science and Control
Participants Bányász, Csilla
Bartha, Tamás
Bokor, József
Edelmayer, András
Gáspár, Péter
Kulcsár, Balázs
Kulcsár, Balázs
Szászi, István
Starting date 2004-01-01
Closing date 2007-12-31
Funding (in million HUF) 11.329
FTE (full time equivalent) 0.00
state closed project





 

Final report

  
Results in Hungarian
Módszert dolgoztunk ki lineáris, állandó paraméterű folyamatok szabályozási köreiben a beavatkozó szervek és magának a folyamatnak a tulajdonságaiból adódó korlátozásoktól függő határ-optimális szabályozók tervezésére. Algoritmust fejlesztettünk ki a beavatkozó szerv amplitudó korlátozásától függő elérhető legjobb tervezési cél (referencia modell) meghatározására. Megadtuk a nominális és az előző módszerrel kapott optimális referencia modellektől függő optimális szabályozók algoritmusait, amelyek a realizálhatósági veszteséget minimalizálják. Az optimális szabályozókat stabilis folyamatok Youla parametrizált szabályozási köreire határoztuk meg. Az optimalitás kritériumaként a H2, Hinf és L2, Linf normákat alkalmaztuk. A realizálhatósági veszteség H2, L2 normák szerinti optimalitását a szabályozók - speciális Diofantoszi egyenletek alapján számolt - belső szűrőinek felhasználásával biztosítottuk. A realizálhatósági veszteség Hinf, Linf normák szerinti optimalitását a szabályozók - speciális Nevanlinna-Pick approximációs egyenletek alapján számolt - belső szűrőinek alkalmazásával biztosítottuk. A H2, Hinf normák alkalmazásával csak nem integráló optimális szabályozó nyerhető. Optimális integráló szabályozóhoz az eredeti normákat speciális "energia" illetve "supremum" normákká kellett kiegészíteni az L2, Linf normák egyidejű alkalmazásával és nem Dirac-delta alakú gerjesztés feltételezésével. Új iteratív módszert vezettünk be a modellezési veszteség optimalizálására is.
Results in English
A new method was developed for design of the (reachable) best controllers for LPI processes when the activator has an amplitude constraint and the process has invariant properties. A procedure was suggested to compute the best (reachable) reference model for tracking and disturbance rejection. A new approach was introduced to minimize the realizability degradation part of the sensitivity function using nominal process models. This optimization uses Youla parametrized regulators for open-loop stable plants. H2, Hinf and L2, Linf norms are used in this procedure. The H2, L2 norm based optimization uses special Diophantine equation to calculate the optimal embedded filter in the regulators. The Hinf, Linf norm based optimization uses special Nevanlinna-Pick approximation to calculate the optimal imbedded filter in the regulators. The original norm formulation was used in a combined way forming general ''energy'' and ''supremum'' norms assuming higher order excitations than the Dirac-delta to ensure integrating optimal regulators, too. New iterative algorithm was developed to minimize the modeling degradation part of the sensitivity function.
Full text http://real.mtak.hu/1340/
Decision
Yes





 

List of publications

  
Bányász Cs; Keviczky L: Properties of state-feedback: explained by transfer function representations, 24th IASTED Int. Conf. Modeling, Identification and Control, MIC05, Innsbruck, A, pp.46-51, 2005
Bartha T; Gáspár P: Integrált irányítási rendszerek alkalmazása a jármûtechnológiában, In: MTA SZTAKI Report SCL-006, 2007
Bányász Cs; Keviczky L: Robust stability limit of time delay systems, pp.5428-5433 In: American Control Conference. ACC04. Boston, MA, USA., 2004
Bányász Cs; Keviczky L: On selection of time-delay in adaptive regulators, pp. 853-857 In: IFAC Workshop on Adaptation and Learning in Control and Signal Processing. ALCOSP04. Yokohama, J, 2004
Bányász Cs; Keviczky L: An iterative nonlinear controller refinement scheme, pp. 173-178 In: IFAC Symp. Nonlinear Control Systems. NOLCOS04. Stuttgart, D, 2004
Bányász Cs; Keviczky L: State-feedback solutions via transfer function representations, pp.218-229 In: XV Int. Conference on systems science. Wroclaw, PL, 2004
Keviczky L; Bányász Cs: Combined modeling and control using a GTDOF scheme, In: Int. Multiconf. in Comp. Sci. and Comp. Eng. IMCSE04, Int. Conf. Modeling, Simulation and Visualization Methods. MSV04. Las Vegas, NV, USA. 214-220, 2004
Keviczky L; Bányász Cs: Optimal structure for model predictive control, pp. 621-626 In: IFAC Workshop on Adaptation and Learning in Control and Signal Processing. ALCOSP04. Yokohama, J, 2004
Keviczky L; Bányász Cs: New structural considerations for model predictive and iterative control, pp. 129-140 In: XV Int. Conference on Systems Science. Wroclaw, PL, 2004
Gáspár P: Rollover stability control in steer-by-wire vehicles, SZTAKI Report, 2004
Kulcsár B: On moving horizon state estimation, SZTAKI Report, 2004
Bányász Cs; Keviczky L: State-feedback solutions via transfer function representations, Int. J. of Systems Science, 30, 2, pp. 21-34, 2004
Bányász Cs; Keviczky L: Limits of optimality in generic two-degree of freedom control systems, pp. 983-988 In 5th Int. Conf. Control and Automation, ICCA05, Budapest, H, 2005
Keviczky L; Bányász Cs: Optimality of a two-degree of freedom control system, pp. 214-219 In 24th IASTED Int. Conf. Control and Applications, CA05, Cancun, MEX, 2005
Keviczky L; Bányász Cs: Error analysis and optimality for a two-degree of freedom control system, pp. 773-778 In Joint Int. Symp. Intelligent Control & 13th Mediterranean Conf. Control&Aut, ISIC-MED05, Limassol, Cyprus, 2005
Keviczky L; Bányász Cs: On the equivalence of a minimal order MPC and a GTDOF control of time-delay plants, 16th IFAC World Congress, Prague, CZ, 2005
Keviczky L; Bányász Cs: Decomposition of error based control system optimization, pp. 2174-2181 In IEEE Int Conf. Systems, Man and Cybernetics, SMC05, Hawaii, USA, 2005
Bányász Cs; Keviczky L: Nonlinear process identification in closed-loop, pp. 897-902 In: 14th IFAC Symp. System Identification, Newcastle, AUS, 2006
Keviczky L; Bányász Cs: New structural considerations for model predictive and iterative control, Int. J. of Systems Science, 30, 1, 23-36, 2004
Keviczky L; Bányász Cs: On the applicability of the Diophantine-equation based approach for designing TDOF control systems, In Int. Control Conf. ICC06, Glasgow, UK, 2006
Keviczky L; Bányász Cs: Optimal identification using sensitivity function decomposition, pp. 390-395 In 25th IASTED Int. Conf. Modeling, Identification and Control MIC06, Lanzarote, ES, 2006
Keviczky L: Understanding optimal control via decomposition of the sensitivity function, Plenary talk, In 25th IASTED Int. Conf. Modeling, Identification and Control MIC06, Lanzarote, ES, 2006
Bányász Cs; Keviczky L: On the reduction of redundancy in MPC parameter estimation, pp. 153-158 In: American Control Conference. ACC06, Minneapolis, MN, USA, 2006
Keviczky L; Bányász Cs: Design of stable stabilizing regulators using advanced visualization tools, pp. 155-161 In Int. Multiconf. Modeling, Simulation and Visualization Methods MSV06, Las Vegas, NV, USA, 2006
Sziray J; Keviczky L; Kóczy L: BSc education in the Engineering Informatics Course at the Széchenyi University, pp. 221-227 In: 7th WFEO World Congress on Engineering Education, Budapest, H, 2006
Keviczky L; Bars R; Hetthéssy J; Barta A; Bányász Cs: Szabályozástechnika, Jegyzet, BMGE Villamosmérnöki és Informatikai Kar, Műegyetemi Kiadó, Budapest, 2006
Keviczky L; Bányász Cs: Model error properties of observer-based state-feedback controller, In: 6th Int. Conf. System Identification and Control Problems SICPRO'07, Moscow, RUS, pp. 879-888, 2007
Bányász Cs; Keviczky L: Diophantine-equation based design of TDOF control systems, In: 6th Int. Conf. System Identification and Control Problems SICPRO'07, Moscow, RUS, pp. 889-898, 2007
Keviczky L; Bányász Cs: Robust stability and performance of time-delay control systems, In: ISA Transactions Journal for the Science and Engineering of Measurement and Automation, American Institute of Physics, 46, pp. 233-237, 2007
Keviczky L; Bányász Cs: Re-evaluation of the Smith predictor based regulators, In: 9th IASTED Int. Conf. Control Applications CA'07, Montreal, CDN, pp. 199-203, 2007
Keviczky L; Bányász Cs: Properties of H2 optimality for two-degree of freedom control systems, In: 9th IASTED Int. Conf. Control Applications CA'07, Montreal, CDN, pp. 174-179, 2007
Keviczky L; Bányász Cs: Future of the Smith predictor based regulators comparing to Youla parametrization, In: 15th Mediterranean Conf. Control and Automation MED'07, Athens, GR, T19-001, 2007
Keviczky L; Bányász Cs: Investigating H2 optimality of two-degree of freedom control systems, In: 15th Mediterranean Conf. Control and Automation MED'07, Athens, GR, T24-002, 2007
Bányász Cs; Keviczky L: Evaluation of performance/robustness limits for Lyapunov-stable nonlinear plants, In: WORLDCOMP MSV'07, Las Vegas, USA, pp. 201-206, 2007
Keviczky L; Bányász Cs: Evaluation of H2 optimality for some two-degree of freedom control systems, In: IEEE Multi-Conf. Systems and Control MSC'07, Singapore, pp. 1551-1556, 2007
Keviczky L; Bányász Cs: Comparison of the Smith predictor based and Youla parametrized regulators, In: 3rd IFAC Symp. System Structure and Control SSSC'07, Iguassu Falls, BR (CD), 2007
Bányász Cs; Keviczky L.: Closed loop identification properties in a generic two-degree of freedom control system, In: 9th IFAC WS Adaptation and Learning in Control and Signal Processing ALCOSP'07, St. Petersburg, RUS (CD), 2007
Edelmayer A: Inverse approach to input reconstruction in linear and nonlinear systems, In: MTA SZTAKI Report SCL-004, pp. 22, 2007
Gáspár P; Szabó Z; Bokor J: The design of a slip prevention control based on friction coefficients, In: MTA SZTAKI Report SCL-005, pp. 20, 2007
Bányász Cs; Keviczky L: Structural considerations for two-degree of freedom nonlinear control systems, In: 12th Mediterranean Conf. Control and Automation MED'04, Izmir, TR, 2004
Keviczky L; Bányász Cs: On the H2 and H-infinity optimality of some two-degree of freedom control systems, In: 16th Int. Conf. Systems Science, Wroclaw, PL, pp. 56-73, 2007



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