Compensation for secondary uncertainty in electro-hydraulic servo system by gain adaptive sliding mode variable structure control

2008 ◽  
Vol 15 (2) ◽  
pp. 256-263 ◽  
Author(s):  
You-wang Zhang ◽  
Wei-hua Gui
Keyword(s):  
Sliding Mode ◽  
Variable Structure Control ◽  
Servo System ◽  
Variable Structure ◽  
Structure Control ◽  
Adaptive Sliding Mode ◽  
Hydraulic Servo ◽  
Hydraulic Servo System ◽  
Sliding Mode Variable Structure

Slide - Mode Variable Structure Adaptive Control of Electro-Hydraulic Servo Systems Based on LuGre Friction Model

2014 ◽  
Vol 687-691 ◽  
pp. 371-374 ◽  
Author(s):  
Rui Juan Guo ◽  
Shuang Du ◽  
Hui Min Yin
Keyword(s):  
Sliding Mode ◽  
Servo System ◽  
Variable Structure ◽  
Friction Model ◽  
Interference Factor ◽  
Servo Systems ◽  
Hydraulic Servo ◽  
Hydraulic Servo System ◽  
Sliding Mode Variable Structure ◽  
Noise Factors

Electro-hydraulic servo system has more disturbance and noise factors at low speed than in other situations of the whole operating process, so the stability and performances of the system would be greatly affected by these factors. It is generally accepted that nonlinear torque disturbance is the main interference factor. In order to compensate above disadvantages, a sliding mode variable structure control was proposed to adjust the electro-hydraulic servo system. The results indicate that the provided approach possesses satisfactory performances in stability, robustness, steady state error and so on.

Sign in / Sign up

Export Citation Format

Share Document