Journal Title : International Journal of Modern Trends in Engineering and Science
Author’s Name : Hema P
Volume 02 Issue 11 Year 2015
ISSN no: 2348-3121
Page no: 15-20
Abstract— The main objective of this paper is aimed to design an intelligent Sliding Mode Controller, so that the control performance of this controller can be improved. Sliding Mode Controller (SMC) is considered as a powerful tool for controlling of nonlinear systems. SMC is an effective method to deal with system uncertainties and external disturbances. Despite of its effectiveness in many applications, SMC has a drawback of control signal chattering (high frequency switching). This chattering problem can be eliminated by using different methods. The Sliding Mode Controller can be made an intelligent controller by incorporating a fuzzy logic. Fuzzy logic is a very powerful method of reasoning when mathematical models are not available and input data are imprecise. By the design of an intelligent sliding mode controller using fuzzy logic, a robust control method for controlling nonlinear systems can be obtained and also the SMC need to be tuned only once and after that, the system can automatically adjust to the process variations. The main aim of the proposed method is to make the controller robust and adaptive to changes in the system.
Keywords— Non-linear systems; Sliding Mode; Sliding surface; Uncertainties; Fuzzy logic
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