Universiti Teknologi Malaysia Institutional Repository

Robust fuzzy logic stabilization with disturbance elimination

A. Danapalasingam, Kumeresan (2014) Robust fuzzy logic stabilization with disturbance elimination. Scientific World Journal . ISSN 1537-744X

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Official URL: http://dx.doi.org/10.1155/2014/171597

Abstract

A robust fuzzy logic controller is proposed for stabilization and disturbance rejection in nonlinear control systems of a particular type. The dynamic feedback controller is designed as a combination of a control law that compensates for nonlinear terms in a control system and a dynamic fuzzy logic controller that addresses unknown model uncertainties and an unmeasured disturbance. Since it is challenging to derive a highly accurate mathematical model, the proposed controller requires only nominal functions of a control system. In this paper, a mathematical derivation is carried out to prove that the controller is able to achieve asymptotic stability by processing state measurements. Robustness here refers to the ability of the controller to asymptotically steer the state vector towards the origin in the presence of model uncertainties and a disturbance input. Simulation results of the robust fuzzy logic controller application in a magnetic levitation system demonstrate the feasibility of the control design.

Item Type:Article
Uncontrolled Keywords:control system, fuzzy logic
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:62498
Deposited By: Widya Wahid
Deposited On:15 Jun 2017 01:18
Last Modified:15 Jun 2017 01:18

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