Volume 11, Issue 2 (3-2015)                   JSDP 2015, 11(2): 31-42 | Back to browse issues page

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Hajebi P, AlModarresi S M T. Improvement of Networked Control Systems Performance Using Rotation in Fuzzy Logic Controller Rules. JSDP. 2015; 11 (2) :31-42
URL: http://jsdp.rcisp.ac.ir/article-1-205-en.html
Yazd University
Abstract:   (5375 Views)
This paper addresses a novel control method adapted with varying time delay to improve NCS performance. A well-known challenge with NCSs is the stochastic time delay. Conventional controllers such as PID type controllers which are just tuned with a constant time delay could not be a solution for these systems. Fuzzy logic controllers due to their nonlinear characteristic which is compatible with these systems are potentially a wise option for their control purpose. Fuzzy logic controller could become adaptive by means of neural networks and beneficial to deal with the varying time delay problem. This novel method suggests an adaptive fuzzy logic controller which has been controlled and adapted through the neural network. The rule-based table of designed fuzzy logic controller rotates in relation to estimated time delay. The amount of rotation is obtained from neural network. The proposed method follows the input easily, despite classical methods which result in an unstable system especially over the large time delays as large as 600 ms.
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Type of Study: Applicable | Subject: Paper
Received: 2014/01/21 | Accepted: 2014/07/8 | Published: 2015/03/22 | ePublished: 2015/03/22

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