Fuzzy Disturbance Observer Design for a Class of Nonlinear SISO Systems

2021 ◽  
Author(s):  
Qiankang Hou ◽  
Li Ma ◽  
Hai Wang ◽  
Shihong Ding
Keyword(s):  
Disturbance Observer ◽  
Observer Design ◽  
Fuzzy Disturbance Observer ◽  
Siso Systems

scholarly journals Adaptive Multivariable Super-Twisting Sliding Mode Controller and Disturbance Observer Design for Hypersonic Vehicle

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Wenru Fan ◽  
Bailing Tian
Keyword(s):  
Disturbance Observer ◽  
Controller Design ◽  
Sliding Mode ◽  
Hypersonic Vehicle ◽  
Observer Design ◽  
Sliding Mode Controller ◽  
Finite Time Convergence ◽  
Gain Adaptation ◽  
Chattering Reduction ◽  
Sliding Manifold

A multivariable super-twisting sliding mode controller and disturbance observer with gain adaptation, chattering reduction, and finite time convergence are proposed for a generic hypersonic vehicle where the boundary of aerodynamic uncertainties exists but is unknown. Firstly, an input-output linearization model is constructed for the purpose of controller design. Then, the sliding manifold is designed based on the homogeneity theory. Furthermore, an integrated adaptive multivariable super-twisting sliding mode controller and disturbance observer are designed in order to achieve the tracking for step changes in velocity and altitude. Finally, some simulation results are provided to verify the effectiveness of the proposed method.

Disturbance Observer Design For AC Servo Systems

2013 ◽  
Vol 5 (6) ◽  
pp. 1275-1283
Author(s):  
Hongli Liu ◽  
Qixin Zhu ◽  
Guoqiang Liao
Keyword(s):  
Disturbance Observer ◽  
Observer Design ◽  
Servo Systems ◽  
Ac Servo

scholarly journals A Novel Disturbance Observer Design for a Larger Class of Nonlinear Strict-Feedback Systems via Improved DSC Technique

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 102455-102466 ◽  
Author(s):  
Wenqian Zhang ◽  
Wenhan Dong ◽  
Shuangyu Dong ◽  
Maolong Lv ◽  
Zongcheng Liu
Keyword(s):  
Disturbance Observer ◽  
Observer Design ◽  
Feedback Systems ◽  
Strict Feedback
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