On the Model Reference Adaptive Control Systems with Input Smoothing Property

This paper is concerned with the model reference adaptive control (MRAC) of single-input single-output discrete-time linear systems subject to unknown constant and small vibrated disturvances. A method to decrease the input-sensitivity to the small vibrated disturvance is presented. The method consi...

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Bibliographic Details
Published inTransactions of the Japan Society of Mechanical Engineers Series C Vol. 52; no. 476; pp. 1362 - 1369
Main Authors KONISHI, Katsunobu, MAEGAWA, Kouji, YOSHIMURA, Toshio, ISHIHARA, Hirokazu
Format Journal Article
LanguageJapanese
Published The Japan Society of Mechanical Engineers 25.04.1986
Subjects
Adaptive Control
Control Theory
Discrete-Time System
Input Smoothing
Pressure Control
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Summary:This paper is concerned with the model reference adaptive control (MRAC) of single-input single-output discrete-time linear systems subject to unknown constant and small vibrated disturvances. A method to decrease the input-sensitivity to the small vibrated disturvance is presented. The method consists of two steps : The extension of the controller structure of the basic MRAC so as to include enough parameters to adjust the transfer function between the input and the vibrated disturvance ; and the step to determine the parameters by using the 1st-order Butterworth low-pass filter or the quadratic criterion. Experimental results of a pressure control system show that the magnitude of the input vibration at the steady state is reduced to l/5∼1/6 of the basic MRAC, and that the control performance is comparable to the well-tuned velocity-type PI control.
ISSN:0387-5024
1884-8354
DOI:10.1299/kikaic.52.1362