Evaluations of fuzzy-logic-based self tuning PI controller and fuzzy-scheduled PID controller for DC servomotor

N., Saad and O., Wahyunggoro (2008) Evaluations of fuzzy-logic-based self tuning PI controller and fuzzy-scheduled PID controller for DC servomotor. In: International Symposium on Information Technology 2008, ITSim, 26 August 2008 through 29 August 2008, Kuala Lumpur.

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Direct Current (DC) servomotors are widely used in robot manipulator applications. Servomotors use feedback controller to control either the speed or the position or both, and the basic continuous feedback control is PID controller. This paper discusses the modeling and simulation of DC servomotor control built using MATLAB/Simulink, and the analysis of controller performance, namely a fuzzy-scheduled PID controller and a fuzzy-logic-based self tuning PI controller with a variation of scaling factor. The singleton fuzzification is used as a fuzzifier: three membership functions for both input and output of fuzzy logic controller. The center average is used as a defuzzifier. Two control modes are applied in sequential to the plant: speed control, and then position control. Simulation results show that fuzzylogic-based self tuning PI controller has better performance in terms of percent OS and settling time compared to fuzzy-scheduled PID controller for the speed control of DC servomotor. © 2008 IEEE.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Control theory; Electric control equipment; Feedback; Feedback control; Fuzzy control; Fuzzy logic; Information technology; Membership functions; Proportional control systems; Robot applications; Servomechanisms; Speed control; Speed regulators; Three term control systems; Time varying control systems; Tuning; Two term control systems; Applications.; Control modes; Controller performances; DC servomotor controls; DC servomotors; Defuzzifier; Direct currents; Feedback controllers; Fuzzification; Fuzzy logic controllers; Input and outputs; MATLAB/Simulink; Modeling and simulations; Pi controllers; PID controllers; Robot manipulators; Scaling factors; Self tuning; Settling times; Simulation results; Servomotors
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Departments / MOR / COE: Departments > Electrical & Electronic Engineering
Depositing User: Assoc Prof Dr Nordin Saad
Date Deposited: 09 Mar 2010 01:09
Last Modified: 19 Jan 2017 08:26
URI: http://scholars.utp.edu.my/id/eprint/423

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