Self organizing variable structure controllers

(1996) Self organizing variable structure controllers. Masters thesis, King Fahd University of Petroleum and Minerals.


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English Abstract

In this thesis the problem of chattering in variable structure controllers is addressed. To reduce the chattering phenomenon in the control signal a new performance index for chattering in self organizing variable structure controllers is presented. Application of Fuzzy Logic to eliminate chattering and improve the system performance is studied. A hybrid Scheme employing both adaptive and fuzzy logic schemes to smooth out the chattering phenomenon and simultaneously increase the speed of the system response is proposed and simulations are carried out for single input single output, single input multioutput and multiinput multioutput systems. The simulation results show that the hybrid scheme employing fuzzy logic alongwith self organizing variable structure controller with new performance index is very effective in reducing both magnitude of the control and chattering phenomenon without compromising speed of response of the systems.

Item Type: Thesis (Masters)
Subjects: Engineering
Department: College of Computing and Mathematics > lndustrial and Systems Engineering
Committee Advisor: Al-Sunni, Fouad M.
Committee Members: Ahmed, Munir and Emara-Shabaik, H.E.
Depositing User: Mr. Admin Admin
Date Deposited: 22 Jun 2008 14:04
Last Modified: 01 Nov 2019 14:01