|
WU Zhenshun
ZHANG Lichun
ZHAO Chunlei
School of
Mechanical and Electrical Engineering,
Harbin Institute of Technology,
Harbin 150001, China |
|
|
ADAPTIVE CONTROLLER AND ITS
APPLICATION IN FORCE SYSTEM
OF ASYMMETRIC CYLINDER CONTROLLED BY SYMMETRIC VALVE
Abstract:
Partial pressure, system vibration and asymmetric system dynamic
performance exit in asymmetric cylinder controller by symmetric
valve hydraulic system. To solve this problem in the force
control system, model reference adaptive controller is designed
using equilibrium point stability theory and output error
equation polynomial. The reference model is selected in such a
way that it meets the system dynamic performance. Hardware
configuration of asymmetric cylinder controlled by asymmetric
valve hydraulic system is replaced by intelligent control
algorithm, thus the cost is lowered and easy to application. Simulation results demonstrate that the proposed adaptive control sheme has good adaptive ability and well solves asymmetric dynamic performance problem. The designed adaptive controller is fairly robust to load disturbance and system parameter variation.
Key words:
Asymmetric cylinder controlled by symmetric servo valve Model reference Balance point Adaptive control
|