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http://dx.doi.org/10.5391/JKIIS.2014.24.4.385

Fuzzy Disturbance Observer based Multiple Sliding Surface Control of Nonlinear Systems with Mismatched Disturbance  

Lee, Sang-Yun (School of Electrical and Electronic Engineering, Yonsei University)
Seo, Hyungkeun (School of Electrical and Electronic Engineering, Yonsei University)
Hyun, Chang-Ho (Division of Electrical Electronic and Control Engineering, Kongju National University)
Park, Mignon (School of Electrical and Electronic Engineering, Yonsei University)
Publication Information
Journal of the Korean Institute of Intelligent Systems / v.24, no.4, 2014 , pp. 385-391 More about this Journal
Abstract
This paper proposes fuzzy disturbance observer based multiple sliding surface control scheme for nonlinear systems with mismatched disturbance. In order to stabilize nonlinear systems with mismatched disturbance, a controller based on multiple sliding surface control scheme is designed. In addition, a fuzzy disturbance observer is used to estimate the disturbance. Using the fuzzy disturbance observer, "explosion of terms" problem and chattering problem were solved. The stability of the proposed control scheme is analyzed by Lyapunov stability theory. For the verification, we apply the proposed method to numerical examples and compare its result with that of the applied nonlinear disturbance observer based sliding mode control.
Keywords
Multiple sliding surface control; Fuzzy disturbance observer; Mismatched disturbance; Nonlinear control;
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