Averaged state model and sliding mode observer for on/off solenoid valve pneumatic actuators

2016 ◽  
Author(s):  
Khaled Laib ◽  
Ahmed Redha Meghnous ◽  
Minh Tu Pham ◽  
Xuefang Lin-Shi
Keyword(s):  
Sliding Mode ◽  
Solenoid Valve ◽  
Sliding Mode Observer ◽  
State Model ◽  
Pneumatic Actuators

Average Modeling and Nonlinear Observer Design For Pneumatic Actuators With On/Off Solenoid Valves

2021 ◽  
Author(s):  
Khaled Laib ◽  
Minh Tu Pham ◽  
Xuefang LIN-SHI ◽  
Redha Meghnous
Keyword(s):  
Closed Loop ◽  
Sliding Mode ◽  
High Gain ◽  
Observer Design ◽  
Nonlinear Observer ◽  
State Model ◽  
Pressure Measurements ◽  
Pneumatic Actuators ◽  
Nonlinear Observers ◽  
Piston Position

Abstract This paper presents an averaged state model and the design of nonlinear observers for an on/off pneumatic actuator. The actuator is composed of two chambers and four on/off solenoid valves. The elaborated averaged state model has the advantage of using only one continuous input instead of four binary inputs. Based on this new model, a high gain observer and a sliding mode observer are designed using the piston position and the pressure measurements in one of the chambers. Finally, their closed-loop performances are verified and compared on an experimental benchmark.

Sliding-Mode Observer as a Time-Variant Estimator for Control of Pneumatic Systems

2004 ◽  
Vol 127 (3) ◽  
pp. 499-502 ◽  
Author(s):  
Pascal Bigras
Keyword(s):  
Feedback Linearization ◽  
Discharge Coefficient ◽  
Sliding Mode ◽  
Estimation Error ◽  
Sliding Mode Observer ◽  
Sliding Mode Controller ◽  
Pneumatic Actuators ◽  
The Stability ◽  
Specific Sliding ◽  
Better Than

The force and position of pneumatic actuators are difficult to control, since their nonlinear model includes unknown variables such as temperature and the discharge coefficient. This paper presents a specific sliding-mode observer to estimate these unknown time-variant quantities. The stability of the estimation error is studied, and real-time results show that the proposed approach combined with a feedback linearization controller performs better than a standard sliding-mode controller.

MPC of Switching in a Boost Converter Using a Hybrid State Model With a Sliding Mode Observer

2009 ◽  
Vol 56 (9) ◽  
pp. 3453-3466 ◽  
Author(s):  
F.M. Oettmeier ◽  
J. Neely ◽  
S. Pekarek ◽  
R. DeCarlo ◽  
K. Uthaichana
Keyword(s):  
Sliding Mode ◽  
Boost Converter ◽  
Sliding Mode Observer ◽  
State Model ◽  
Hybrid State
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