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A supervisory loop to remedy actuator saturation: Immune approach

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4 Author(s)
Rashtian, M. ; Young Researcher Club-Islamic, Azad Univ. Najaf Abad Branch, Esfahan, Iran ; Shahgholian, G. ; Shafaghi, P. ; Farahmand, M.

This paper describes the actuator saturation problem and its solution. Actuator saturation is one the practical problem in control of various systems. Even it might cause instability. In this article we describe different problems that are caused by saturation. After that a method is proposed to remedy the effect of it. In the proposed method this problem is solved by decreasing the band width of the controller. In order to accomplish this, a supervisory control is employed which uses artificial immune algorithm to adjust the proper forward path gain and then we compare the result with fuzzy supervisor. As you will see immune supervisor has better result in compare with fuzzy model. Recently, the biological immune system arouses researchers' interest since it has several useful mechanisms which can be used for information processing. In this paper, an improved artificial immune algorithm is presented which is used in the design approach of a supervisory loop.

Published in:

Electronic Computer Technology (ICECT), 2010 International Conference on

Date of Conference:

7-10 May 2010