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2012 (Vol. 4, Issue: 21)
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 

Key words:  Co-simulation , fuzzy, hydraulic EPC, proportion sliding mode, switching gain, ,
Vol. 4 , (21): 4237-4244
Submitted Accepted Published
December 20, 2011 April 23, 2012 November 01, 2012

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.
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  Cite this Reference:
Jin Baoquan and Chen Dongbing, 2012. Improvement of Hydraulic Edge Position Control System by Proportion Sliding Mode of Self-tuning Switching Gain.  Research Journal of Applied Sciences, Engineering and Technology, 4(21): 4237-4244.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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