Adaptive Robust Control for Electro-Hydraulic Servo System of a Projectile Transfer Arm

2019 ◽  
Author(s):  
Chengxi Li ◽  
Hongbin Chen
Keyword(s):  
Robust Control ◽  
Servo System ◽  
Adaptive Robust Control ◽  
Hydraulic Servo ◽  
Hydraulic Servo System

scholarly journals Nonlinear Adaptive Robust Control of the Electro-Hydraulic Servo System

2020 ◽  
Vol 10 (13) ◽  
pp. 4494 ◽  
Author(s):  
Lijun Feng ◽  
Hao Yan
Keyword(s):  
Robust Control ◽  
Position Control ◽  
External Disturbance ◽  
Servo System ◽  
Adaptive Robust Control ◽  
Superior Performance ◽  
Parametric Uncertainties ◽  
State Equations ◽  
Hydraulic Servo ◽  
Hydraulic Servo System

This paper focuses on high performance adaptive robust position control of electro-hydraulic servo system. The main feature of the paper is the combination of adaptive robust algorithm with discrete disturbance estimation to cope with the parametric uncertainties, uncertain nonlinearities, and external disturbance in the hydraulic servo system. First of all, a mathematical model of the single-rod position control system is developed and a nonlinear adaptive robust controller is proposed using the backstepping design technique. Adaptive robust control is used to encompass the parametric uncertainties and uncertain nonlinearities. Subsequently, a discrete disturbance estimator is employed to compensate for the effect of strong external disturbance. Furthermore, a special Lyapunov function is formulated to handle unknown nonlinear parameters in the system state equations. Simulations are carried out, and the results validate the superior performance and robustness of the proposed method.

Research on the Double-Loop Robust Control Technology for the Electric-Hydraulic Servo System

2013 ◽  
Vol 423-426 ◽  
pp. 2792-2798
Author(s):  
Tian Peng He ◽  
Shu Li ◽  
Xiao Long Li
Keyword(s):  
Robust Control ◽  
Manufacturing Industry ◽  
Servo System ◽  
Response Speed ◽  
Double Loop ◽  
Tracking Accuracy ◽  
Aerospace Manufacturing ◽  
Control Scheme ◽  
Hydraulic Servo ◽  
Hydraulic Servo System

With the electro-hydraulic servo mechanism is more and more widely used in aerospace, manufacturing industry and agricultural machinery, its control performances are required by process environment with more and more expectations, which include increasing response speed and improving tracking accuracy. Because the traditional PID controller possesses large overshoot, long conversion time, bad robustness and other shortcomings, the double-loop robust control algorithm is proposed. Simulation results show that, compared with traditional PID control scheme, the proposed control scheme can achieve accurate tracking of electro-hydraulic servo system quickly. Therefore, it enhances product performance, optimizes the design process, and also possesses a high application value.

Optimization Design of CVT Electro-Hydraulic Servo System Based on H∞ Control

2013 ◽  
Vol 385-386 ◽  
pp. 823-826
Author(s):  
Yu Qin Wang ◽  
Quan Sheng Jiang ◽  
Han Sheng Yang
Keyword(s):  
Robust Control ◽  
Control Algorithm ◽  
Optimization Design ◽  
Ride Comfort ◽  
Servo System ◽  
Control Model ◽  
System Control ◽  
Robust Controller ◽  
Hydraulic Servo ◽  
Hydraulic Servo System

In order to improve ride comfort and reduce the sense of frustration generated by the car when shifting, H robust control algorithm is proposed to optimize the design of CVT electro-hydraulic servo system. The CVT electro-hydraulic servo system is optimized by the development of system control model and the design of H∞ robust controller. The simulation result indicates that the systems uncertainties can be optimized effectively by the H∞ controller, while the systems anti-interference ability and robustness is improved obviously.

scholarly journals Study of Performance Evaluation of Robust Control for Electrical Hydraulic Servo System (1st Report)

2000 ◽  
Vol 120 (3) ◽  
pp. 423-429
Author(s):  
Taro NAKAMURA ◽  
Yoshihiro SASAHI ◽  
Norihiko SAGA ◽  
Yoshio TAKAIIASHI
Keyword(s):  
Performance Evaluation ◽  
Robust Control ◽  
Servo System ◽  
Hydraulic Servo ◽  
Hydraulic Servo System

scholarly journals Study of Performance Evaluation of Robust Control for Electrical Hydraulic Servo System (2nd Report)

2000 ◽  
Vol 120 (7) ◽  
pp. 916-921
Author(s):  
Taro NAKAMURA ◽  
Yoshihiro SASAKI ◽  
Norihiko SAGA ◽  
Yoshio TAKAHASHI
Keyword(s):  
Performance Evaluation ◽  
Robust Control ◽  
Servo System ◽  
Hydraulic Servo ◽  
Hydraulic Servo System
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