Title :
Robust controller with disturbance rejection for hydraulic servo systems
Author :
Lu, Hung-Ching ; Lin, Wen-Chen
Author_Institution :
Dept. of Electr. Eng., Tatung Inst. of Technol., Taipei, Taiwan
fDate :
2/1/1993 12:00:00 AM
Abstract :
A controller is presented that improves the performance and reduces the sensitivity of hydraulic servo systems in the presence of parameter variations, nonlinear effects, and other disturbances. The control system has enhanced closed-loop stability and can recover from steady-state and transient error quickly and completely. It consists of a servo controller, an auxiliary controller, and a robust controller. Simulation and experimental results demonstrate the validity of the controller
Keywords :
hydraulic control equipment; servomechanisms; stability; closed-loop stability; disturbance rejection; hydraulic servo systems; nonlinear effects; parameter variations; robust controllers; steady-state errors; transient error; Adaptive control; Control systems; Engine cylinders; Error correction; Nonlinear control systems; Programmable control; Robust control; Servomechanisms; Servomotors; Servosystems;
Journal_Title :
Industrial Electronics, IEEE Transactions on
