Adaptive Sliding Mode Observer for a Class of Systems

In this paper, the performance of two adaptive observers applied to interconnected systems is studied. The nonlinearity of systems can be written in a fractional form. The first adaptive observer is an adaptive sliding mode observer for a Lipchitz nonlinear system and the second one is an adaptive sliding mode observer having a filtered error as a sliding surface. After comparing their performances throughout the inverted pendulum mounted on a car system, it was shown that the second one is more robust to estimate the state.

Authors:

• D.Elleuch
• T.Damak

Keywords:

• Adaptive observer
• Lipchitz system
• Interconnected fractional nonlinear system
• sliding mode.

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