High gain observer applied to a sliding mode control for pneumatic actuator

Abstract EN

Nonlinear control laws become the most important strategies to control electro pneumatic actuator.

To get high accuracy and performance, we need the knowledge of all state variables.

This paper focus on the design of high gain observer that estimates the unmeasured states (velocity and pressure in chamber N) from the measurements of the position and pressure in chamber P.

It is characterized by its simplicity and implementation capability.

Simulations results are presented to test the effectiveness of our high gain observer, which is applied to sliding mode controller in order to control tracking position and pressure.