Abstract
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Article Information:
Improvement of Hydraulic Edge Position Control System by Proportion Sliding Mode of Self-tuning Switching Gain
Jin Baoquan and Chen Dongbing
Corresponding Author: Jin Baoquan
Submitted: December 20, 2011
Accepted: April 23, 2012
Published: November 01, 2012 |
Abstract:
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Aiming at the problem of tracking performance degradation of hydraulic EPC system caused by
time-varying inertia parameters, nonlinear and external disturbances, the proportion sliding mode control of
fuzzy self-tuning gain was proposed. The EPC system state space model on deviation parameters was
established and the main feedback sliding mode switching algorithm was designed. The fuzzy method was used
to dynamically adjust the proportion sliding mode switching gain by product of the switching function and its
derivative state and to adaptive compensate for the uncertainty of the system. At the same time to ensure the
effectiveness of the design strategy, the controller model and physical model worked together to simulate the
actual conditions. The fixed switching gain switch was, respectively greater and smaller and compared with
the fuzzy self-tuning gain, in which the latter achieves a fast and coordinated control of chattering. The results
show that after comprehensive consideration all interference the system is stable, fast response, high accuracy
and to solve chattering problem caused by the traditional large switching gain of proportion sliding mode.
Key words: Co-simulation , fuzzy, hydraulic EPC, proportion sliding mode, switching gain, ,
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Abstract
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Cite this Reference:
Jin Baoquan and Chen Dongbing, . Improvement of Hydraulic Edge Position Control System by Proportion Sliding Mode of Self-tuning Switching Gain. Research Journal of Applied Sciences, Engineering and Technology, (21): 4237-4244.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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