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Ugrás a tartalomra

Integration of Soft Computing and Fractional Derivatives in Adaptive Control

CímIntegration of Soft Computing and Fractional Derivatives in Adaptive Control
Közlemény típusaJournal Article
Kiadás éve2005
SzerzőkTar, J. K., and A. Bencsik
FolyóiratCOMPUTING AND INFORMATICS
Évfolyam24
Oldalszám603 - 616
Kiadás dátuma2005
Kiadás nyelveeng
Összefoglalás

Realizing that generality and uniformity of the usual Soft Computing (SC) structures exclude the application of plausible simplifications relevant in the case of whole problem classes resulted in the idea that a novel branch of soft computing could be developed by the use of which far simpler and more lucid uniform structures and procedures could be applied than in the traditional ones. Such a novel approach to computational cybernetics akin to SC was developed at Budapest Tech to control inaccurately and incompletely modeled dynamic systems under external disturbances. Hydraulic servo valve controlled differential cylinders as non-linear, strongly coupled multivariable electromechanical tools serve as excellent paradigms of such difficulties. Their control has to cope with the problem of instabilities due to the friction forces between the piston and the cylinder, as well as with uncertainties and variation of the hydrodynamic parameters that makes it unrealistic to develop an accurate static model for them. In this paper a combination of this novel method with the use of fractional derivatives is applied for the control of a hydraulic differential cylinder. Simulation results well exemplifying the conclusions are also presented.
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