Transactions of the Institute of Systems, Control and Information Engineers
Online ISSN : 2185-811X
Print ISSN : 1342-5668
ISSN-L : 1342-5668
Adaptive Feedforward Control for Speed Control System and Positioning System
Takuya KAMANOTakayuki SUZUKINorihisa IUCHIMasayoshi TOMIZUKA
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1991 Volume 4 Issue 8 Pages 331-338

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Abstract

This paper considers the use of an adaptive feedforward controller for both a speed control system and a positioning system with a DC servo motor. The parameters of the feedforward controller are adjusted by an adaptation algorithm, the objective of which is to make the feedforward controller a dynamic inverse of the plant. Moreover, an adaptive disturbance compensator is used, and its parameter is adjusted by the algorithm. The error between the desired output and actual output is used as the adaptation error signal as well as the input to the nonadaptive feedback controller. After the adaptive process is completed, the input to the motor is no longer supplied by the feedback controller but by the feedforward controller. The stability of the proposed adaptive control systems is analyzed and experimentally verified.

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