Journal
ISA TRANSACTIONS
Volume 53, Issue 3, Pages 732-743Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.isatra.2014.02.007
Keywords
Fuzzy PID controllers; Interval type-2 fuzzy logic system; Interval type-2 fuzzy PID controller; Inverted pendulum system; Uncertain system
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In this paper, the interval type-2 fuzzy proportional-integral-derivative controller (IT2F-PID) is proposed for controlling an inverted pendulum on a cart system with an uncertain model. The proposed controller is designed using a new method of type-reduction that we have proposed, which is called the simplified type-reduction method. The proposed IT2F-PID controller is able to handle the effect of structure uncertainties due to the structure of the interval type-2 fuzzy logic system (IT2-FLS). The results of the proposed IT2F-PID controller using a new method of type-reduction are compared with the other proposed IT2F-PID controller using the uncertainty bound method and the type-1 fuzzy PID controller (T1F-PID). The simulation and practical results show that the performance of the proposed controller is significantly imprmied compared with the T1F-PID controller. (C) 2014 ISA. Published by Elsevier Ltd. All rights reserved.
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