scholarly journals Robust Controller Design Based on Sliding Mode Observer in The Presence of Uncertainties and Actuator Saturation

2019 ◽  
Vol 13 (2) ◽  
pp. 23-32
Author(s):  
Tahereh Binazadeh ◽  
Majid Bahmani ◽  
◽  
Keyword(s):  
Controller Design ◽  
Actuator Saturation ◽  
Sliding Mode ◽  
Sliding Mode Observer ◽  
Robust Controller ◽  
Robust Controller Design

Robust Tracking of a Class of Perturbed Nonlinear Systems via Multivariable Nested Sliding Mode Control

2012 ◽  
Vol 134 (3) ◽  
Author(s):  
Aras Adhami-Mirhosseini ◽  
Mohammad J. Yazdanpanah ◽  
Ali Khaki-Sedigh
Keyword(s):  
Sliding Mode Control ◽  
Controller Design ◽  
Sliding Mode ◽  
Main Idea ◽  
Feedback Form ◽  
Robust Controller ◽  
Mode Control ◽  
Hierarchical Sliding Mode ◽  
Matched And Unmatched Uncertainties ◽  
Robust Controller Design

In this paper, a new methodology for robust controller design in nonlinear multivariable systems is suggested to guarantee asymptotic output tracking. The systems under consideration are perturbed by functionally bounded matched and unmatched uncertainties/perturbations and assumed to be described in the strict-feedback form. The main idea of the methodology is based on the combination of conventional sliding mode control and backstepping algorithm. The proposed controller called nested sliding mode controller that is obtained through a stepwise algorithm. It has the ability of rejecting nonvanishing perturbations by using dynamic switches, unlike conventional and other hierarchical sliding mode design methods. Performance is studied through theorems and verified by two numerical examples.

scholarly journals A Robust Double Active Control System Design for Disturbance Suppression of a Two-Axis Gimbal System

Electronics ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 1638
Author(s):  
Dong-Hun Lee ◽  
Duc-Quan Tran ◽  
Young-Bok Kim ◽  
Soumayya Chakir
Keyword(s):  
Motion Tracking ◽  
Controller Design ◽  
Sliding Mode ◽  
Control Strategies ◽  
Robust Controller ◽  
Stabilized Platform ◽  
Imaging Sensors ◽  
Inertially Stabilized Platform ◽  
Two Degree Of Freedom ◽  
Robust Controller Design

This paper presents a robust controller design with disturbance decoupling and rejection of a two-degree-of-freedom (2-DOF) Inertially Stabilized Platform (ISP). The objective of these mechanisms is to stabilize the line of sight (LOS) of imaging sensors pointing towards a specific target. There is currently tremendous interest in ISP applications in marine systems. Such a harsh environment subjects the imaging sensors to multiple disturbances, which requires the design of robust control strategies to enhance the performances of ISP systems. The controller designed in this study is a double active controller composed of an inner compensator, and a feedback controller designed based on the H∞ framework. The main advantage of the proposed controller is that it can be implemented in real time, with lower computational complexity and good performance. In this paper, a comparative experimental study was conducted between the designed controller and an integral sliding-mode controller (ISMC). The comparison was achieved through two major tasks of ISP systems: motion tracking and target tracking.

A Modified Homotopy Method and H∞ Robust Controller Design

2014 ◽  
Vol 39 (8) ◽  
pp. 1374-1380
Author(s):  
Bin LIU ◽  
Jiu-Qiang SUN ◽  
Zhi-Qiang ZHAI ◽  
Zhuo LI ◽  
Chang-Hong WANG
Keyword(s):  
Controller Design ◽  
Homotopy Method ◽  
Robust Controller ◽  
Robust Controller Design
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