Design and Experimental Evaluation of an Adaptive Output Feedback Control System Based on ASPR-Ness

Zhe GUAN  Shin WAKITANI  Ikuro MIZUMOTO  Toru YAMAMOTO  

Publication
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E100-A   No.12   pp.2956-2962
Publication Date: 2017/12/01
Online ISSN: 1745-1337
Type of Manuscript: PAPER
Category: Systems and Control
Keyword: 
adaptive output feedback control,  ASPR,  PFC,  temperature control system,  

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Summary: 
This paper considers a design method of a discrete-time adaptive output feedback control system with a feedforward input based on almost strict positive realness (ASPR-ness). The proposed scheme utilizes the property of ASPR of the controlled plant, and the reference signal is used as feedforward input. The parallel feedforward compensator (PFC) which renders an ASPR augmented controlled plant is also investigated. Besides, it is shown that the output of original plant can track reference signal perfectly without any steady state error. The effectiveness of the proposed scheme is confirmed through a pilot-scale temperature control system.