A fuzzy disturbance observer based control approach for a novel 1-DOF micropositioning mechanism

Mechatronics ◽  
2020 ◽  
Vol 65 ◽  
pp. 102317 ◽  
Author(s):  
Ammar Al-Jodah ◽  
Bijan Shirinzadeh ◽  
Mohammadali Ghafarian ◽  
Tilok Kumar Das ◽  
Yanling Tian ◽  
...  
Keyword(s):  
Disturbance Observer ◽  
Control Approach ◽  
Fuzzy Disturbance Observer

scholarly journals Sliding mode control of the automobile electro-coating conveying mechanism with a nonlinear disturbance observer

2018 ◽  
Vol 10 (9) ◽  
pp. 168781401879574 ◽  
Author(s):  
Wei Yuan ◽  
Guoqin Gao
Keyword(s):  
Sliding Mode Control ◽  
Disturbance Observer ◽  
High Performance ◽  
Sliding Mode ◽  
External Disturbance ◽  
Nonlinear Disturbance Observer ◽  
Control Approach ◽  
Mode Control ◽  
Highly Nonlinear ◽  
Nonlinear Disturbance

The trajectory-tracking performance of the automobile electro-coating conveying mechanism is severely interrupted by highly nonlinear crossing couplings, unmodeled dynamics, parameter variation, friction, and unknown external disturbance. In this article, a sliding mode control with a nonlinear disturbance observer is proposed for high-accuracy motion control of the conveying mechanism. The nonlinear disturbance observer is designed to estimate not only the internal/external disturbance but also the model uncertainties. Based on the output of the nonlinear disturbance observer, a sliding mode control approach is designed for the hybrid series–parallel mechanism. Then, the stability of the closed-loop system is proved by means of a Lyapunov analysis. Finally, simulations with typical desired trajectory are presented to demonstrate the high performance of the proposed composite control scheme.

A disturbance observer-based adaptive control approach for flexure beam nano manipulators

2016 ◽  
Vol 60 ◽  
pp. 206-217 ◽  
Author(s):  
Yangming Zhang ◽  
Peng Yan ◽  
Zhen Zhang
Keyword(s):  
Adaptive Control ◽  
Disturbance Observer ◽  
Control Approach
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