A variable structure control with proportional and integral compensations for electrohydraulic position servo control system

Electrohydraulic servomechanisms are widely used in manufacturing machinery, in the heavy-duty machine and automobile industry, because the hydraulic control systems can provide large torque and higher speed of response with fast motion to the plant. However, highly nonlinear and parameter uncertain...

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Published in:Mechatronics (Oxford) 1997, Vol.7 (1), p.67-81
Main Authors: FUNG, R.-F, WANG, Y.-C, YANG, R.-T, HUANG, H.-H
Format: Article
Language:English
Subjects:
Applied sciences
Computer simulation
Drives
Errors
Exact sciences and technology
Mechanical engineering. Machine design
Nonlinear control systems
Position control
Speed variators, torque converters. Hydraulic drives and controls, pneumatic drives and controls, fluids and components, hydraulic motors, pneumatic motors
System stability
Two term control systems
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cited_by cdi_FETCH-LOGICAL-c399t-d560f20d67f2b512ee96ba83a99eafe25a12f4b7d839d36eb45e35d9bf35d9a3
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WANG, Y.-C
YANG, R.-T
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description Electrohydraulic servomechanisms are widely used in manufacturing machinery, in the heavy-duty machine and automobile industry, because the hydraulic control systems can provide large torque and higher speed of response with fast motion to the plant. However, highly nonlinear and parameter uncertainties mean that the control of the hydraulic system is not always optimum.In this paper, we apply the technique of variable structure control with proportional and integral compensations (PIVSC) to an electrohydraulic position servo control system. The numerical simulation result shows that PIVSC has faster output response than the integral variable structure controller (IVSC) and zero steady-state error with external disturbance to the nonlinear plant.
doi_str_mv 10.1016/S0957-4158(96)00041-4
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source Elsevier
subjects Applied sciences
Computer simulation
Drives
Errors
Exact sciences and technology
Mechanical engineering. Machine design
Nonlinear control systems
Position control
Speed variators, torque converters. Hydraulic drives and controls, pneumatic drives and controls, fluids and components, hydraulic motors, pneumatic motors
System stability
Two term control systems
title A variable structure control with proportional and integral compensations for electrohydraulic position servo control system
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