A Novel Fuzzy Output Feedback Dynamic Sliding Mode Controller Design for Two-Dimensional Nonlinear Systems

2020 ◽  
pp. 1-1
Author(s):  
Jianbin Qiu ◽  
Ji Wenqiang ◽  
M. CHADLI
Keyword(s):  
Nonlinear Systems ◽  
Output Feedback ◽  
Controller Design ◽  
Sliding Mode ◽  
Sliding Mode Controller ◽  
Two Dimensional ◽  
Dynamic Sliding Mode

scholarly journals Robust Output Feedback Passivity-Based Variable Structure Controller Design for Nonlinear Systems

2019 ◽  
Vol 2019 ◽  
pp. 1-10
Author(s):  
Jeang-Lin Chang ◽  
Tsui-Chou Wu
Keyword(s):  
Nonlinear Systems ◽  
Output Feedback ◽  
Controller Design ◽  
Sliding Mode ◽  
Damping Ratio ◽  
Variable Structure ◽  
Sliding Surface ◽  
Estimation Errors ◽  
System States ◽  
Approach Zero

This paper examines the use of an output feedback variable structure controller with a nonlinear sliding surface for a class of SISO nonlinear systems in the presence of matched disturbances. With only the measurable system output, the discontinuous observer reconstructs the system states and ensures that the estimation errors exponentially approach zero. Using the estimation states, the proposed nonlinear sliding surface with variable damping ratio can simultaneously achieve low overshoot and short settling time. Then the passivity-based controller including a discontinuous term can guarantee that the closed-loop system asymptotically converges to the sliding surface. Compared with other sliding mode controllers, the proposed passivity-based control scheme has better transient performance and effectively reduces the control gain. Finally, simulation results demonstrate the validity of the proposed method.

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