A new differentiator based on a second order sliding mode output feedback control

2010 ◽  
Author(s):  
F. Plestan ◽  
A. Glumineau
Keyword(s):  
Feedback Control ◽  
Output Feedback ◽  
Sliding Mode ◽  
Output Feedback Control ◽  
Second Order ◽  
Second Order Sliding Mode

Output feedback control: a robust solution based on second order sliding mode

2008 ◽  
Vol 41 (2) ◽  
pp. 8636-8641 ◽  
Author(s):  
F. Plestan ◽  
E. Moulay ◽  
A. Glumineau ◽  
T. Cheviron
Keyword(s):  
Feedback Control ◽  
Output Feedback ◽  
Sliding Mode ◽  
Output Feedback Control ◽  
Second Order ◽  
Robust Solution ◽  
Second Order Sliding Mode

On Application of Second Order Sliding Mode Control to Electro-Hydraulic Systems

2014 ◽  
Author(s):  
Lasse Schmidt ◽  
Torben O. Andersen ◽  
Henrik C. Pedersen
Keyword(s):  
Sliding Mode Control ◽  
Output Feedback ◽  
Nonlinear Dynamic ◽  
Sliding Mode ◽  
Output Feedback Control ◽  
Second Order ◽  
Dynamic Effects ◽  
Mode Control ◽  
Hydraulic Valve ◽  
Second Order Sliding Mode

This paper discusses the application of second order mode controls to hydraulic valve-cylinder drives with a special focus on the limitations resulting from nonlinear dynamic effects in flow control valves. Second order sliding mode algorithms appear highly attractive in the successive implementation of sliding mode control, achieving continuous control inputs, while maintaining the main properties of sliding modes. Under certain model assumptions, some of these controllers may even be applied as output feedback controllers. However, intrinsic nonlinear dynamic effects of hydraulic valves such as slew rates and time delays arising in the amplification stages, limits the applicability of such methods, and may lead to partial losses of robustness and limit cycles. These properties are analyzed and experimentally verified, and compensation methods are proposed. The application of the second order sliding algorithm known as the super twisting controller is considered for output feedback control and compared with conventional first order sliding mode control. The controllers under consideration are applied for position tracking control of a hydraulic valve-cylinder drive exhibiting strong variations in inertia- and gravitational loads. Results demonstrate that the super twisting algorithm may be successfully applied for output feedback control of hydraulic valve-cylinder drives, with modifications guaranteeing robust control performance in a small vicinity of the control target.

Sign in / Sign up

Export Citation Format

Share Document