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Design of Moving Sliding Surfaces in A Variable Structure Plant and Chattering Phenomena

Authors: T.C. Manjunath


This paper deals with the design of a moving sliding surface in a variable structure plant for a second order system. The chattering phenomena is also dealt with during the switching process for an unstable sliding surface condition. The simulation examples considered in this paper shows the effectiveness of the sliding mode control method used for the design of the moving sliding surfaces. A simulink model of the continuous system was also developed in MATLAB-SIMULINK for the design and hence demonstrated. The phase portraits and the state plots shows the demonstration of the powerful control technique which can be applied for second order systems.

Keywords: Trajectories, Sliding Mode Control, chattering, VSC, Reaching phase, Sliding phase, Moving surfaces

Digital Object Identifier (DOI):

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