Transactions of the Institute of Systems, Control and Information Engineers
Online ISSN : 2185-811X
Print ISSN : 1342-5668
Estimation of Parameter Bounds for Continuous-Time Systems with Delay and Its Application to Robust I-PD Controller Design
Dongliang HUANGTohru KATAYAMA
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1999 Volume 12 Issue 9 Pages 540-548

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Abstract

In this paper, we derive a method of estimating a model set for a continuous-time delay system. Using δ-operator model, we first transform the estimation problem of a continuous-time delay system to a discrete one in which the system parameters remain in their original form. Then an identification method combining the genetic algorithm (GA) with the modified ellipsoid-bounding (MEB) algorithm is developed in order to estimate the time delay and system parameters together with their bounds. Simulation results are included to show the effectiveness of the present method. Furthermore, the present technique is applied to a closed-loop identification and a robust I-PD controller design.

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