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A development of self-tuning quantitative feedback theory

Mansor, Hasmah and Khan, Sheroz and Gunawan, Teddy Surya and Mohd Noor, Samsul Bahari (2012) A development of self-tuning quantitative feedback theory. In: International Conference on Computer and Communication Engineering (ICCCE 2012), 3-5 July 2012, Seri Pacific Hotel Kuala Lumpur.

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Abstract

This paper presents a development of self-tuning Quantitative Feedback Theory (QFT) for a non linear system. QFT is one type of robust controller which deals with plant uncertainty. The performance of robust controller for any uncertain plant is guaranteed based on pre-defined specifications. Meanwhile, self-tuning controller is one type of adaptive controller which also meant to solve the same control problem, however for slower plant drift. By combining both adaptive and robust controllers, both robust and adaptive performance can be achieved. The proposed algorithm is tested on a chosen case study, grain dryer plant. Grain dryer is a non linear plant with uncertainty as the characteristics of the plant can be affected by environmental changes, manufacturing tolerance and input/output disturbance. Based on the results obtained from this case study, the superiority of the proposed self-tuning QFT has been proven. From the comparison test conducted between self-tuning and standard QFT-based controllers, the proposed method produced more desirable response in terms of faster settling time, less percentage of overshoot with reduced ringing, smaller control effort required and wider leverage of uncertainty range.

Item Type: Conference or Workshop Item (Full Paper)
Additional Information: 4158/25642 (Print ISBN: 9781467304788, DOI: 10.1109/ICCCE.2012.6271341)
Uncontrolled Keywords: self-tuning, quantitative feedback theory, adaptive, grain dryer, non linear, plant uncertainty
Subjects: T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General) > TA168 Systems engineering
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering > Department of Electrical and Computer Engineering
Depositing User: Ms Hasmah Mansor
Date Deposited: 05 Sep 2012 14:20
Last Modified: 05 Sep 2012 14:25
URI: http://irep.iium.edu.my/id/eprint/25642

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