This paper carries out the thorough analysis and research on torque load simulator using electrohydraulic servo control. Aiming at the problems that existed in loading system, such as the extraneous torque, multi-channels cross coupling and parameter variation, an exact dynamic mathematical model is established, and a new kind of compound control law is proposed. The control law consists of compensation to disturbance, internal loop robust PID control, and generalized proportion-integral control to forward error. By means of this kind of control law, the robustness and tracking performance of loading system can be greatly improved, and the extraneous torque can be effectively decreased.
Issue Section:
Technical Papers
1.
Liu, Changnian, 1989, Optimized Design Theory of Hydraulic Servo System(In Chinese), China Metallurgical Industrial Press, Beijing.
2.
Merrit, Herbert E., 1967, Hydraulic Control Systems, Wiley New York, pp. 160–180.
3.
Landau
, I. D.
, 1974
, “A Survey of Model Reference Adaptive Techniques—Theory and Applications
,” Automatica
, 10
, pp. 353
–379
.4.
Narendra
, K. S.
, 1980
, “Adaptive Controller Design
,” IEEE Tran.
, AC-25
, pp. 440
–448
.5.
Chen
, C. L.
, 1996
, “Design and Analysis of Neural/Fuzzy Variable Structural PID Control Systems
,” IEE Proc. D
, 143
, pp. 200
–208
.6.
Edge
, K. A.
, and Figueredo
, K. R. A.
, 1987
, “An Adaptively Controlled Electrohydraulic Servo Mechanism, Part 1: Adaptive Controller Design
,” Proc. Instn. Mech. Engrs, Part B
, 201
, pp. 175
–180
.7.
Edge
, K. A.
, and Figueredo
, K. R. A.
, 1987
, “An Adaptively Controlled Electrohydraulic Servo Mechanism, Part 2: Implementation
,” Proc. Instn. Mech. Engrs, Part B
, 201
, pp. 181
–189
.8.
Li
, Yunhua
, and Wang
, Zhanlin
, 1999
, “Vibrator of the Mould of Continuous Casting Machinery Based on Electro-hydraulic Servo System (In Chinese)
,” Chinese Journal of Mechanical Engineering
, 35
, pp. 72
–75
.9.
Nishiumi
, T.
, and Watton
, J.
, 1997
, “Model Reference Adaptive Control of an Electro-hydraulic Motor Using an Artificial Neural Network Compensator
,” Proc. Instn. Mech. Engrs, Part I
, 211
, pp. 111
–121
.Copyright © 2002
by ASME
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