A discrete-time framework for proximate time-optimal performance of damped servomechanisms

Title: A discrete-time framework for proximate time-optimal performance of damped servomechanisms
Creator: Flores, J. V.; Salton, A. T.; Gomes da Silva Jr., J. M.; Neto, N. B.; Chen, Z.
Relation: Mechatronics Vol. 36, Issue June 2016, p. 27-35
Publisher Link: http://dx.doi.org/10.1016/j.mechatronics.2016.04.003
Publisher: Elsevier
Resource Type: journal article
Date: 2016
Description: This paper proposes nonlinear control strategies for the discrete-time near time-optimal control of damped servomechanisms. Both the well established Proximate Time Optimal Servomechanism (PTOS) and its dynamically damped version (ddPTOS) are extended for damped systems. Stability results are presented in a general discrete-time framework suitable for both damped and undamped systems. These results allow the reduction of constraints in the traditional PTOS – particularly regarding the acceleration discount factor – while encompassing the nonlinear damping of the ddPTOS. Experimental results demonstrate the efficiency of the proposed controllers.
Subject: proximate time-optimal servomechanism; control saturation; sector-bounded nonlinearity; linear matrix inequalities (LMI)
Identifier: http://hdl.handle.net/1959.13/1325058
Identifier: uon:25175
Identifier: ISSN:0957-4158
Language: eng
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