Nonlinear Robust Adaptive Control of Electro-hydraulic Position Servo System | Zendy

Junpeng Shao | Zendy; Guitao Sun | Zendy; Xiaoning Mu | Zendy

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Nonlinear Robust Adaptive Control of Electro-hydraulic Position Servo System

Author(s) -

Junpeng Shao,

Guitao Sun,

Xiaoning Mu

Publication year - 2014

Publication title -

international journal of control and automation

Language(s) - English

Resource type - Journals

eISSN - 2207-6387

pISSN - 2005-4297

DOI - 10.14257/ijca.2014.7.8.25

Subject(s) - control theory (sociology) , nonlinear system , position (finance) , servo , servomechanism , control engineering , computer science , servo control , nonlinear model , control (management) , engineering , artificial intelligence , physics , business , finance , quantum mechanics

For the influence of time varying parameter on servo accuracy of electro-hydraulic position servo system, nonlinear robust adaptive controller with the ability of restraining the parameter perturbation for symmetry valves-control symmetry cylinder system is put forward which is based on the Lyapunov stability theory, The nonlinear state equation of symmetry valves-control symmetry cylinder system was derived, and the controller design process was given. the control strategy was verified on Co-simulation of MATLAB & AMESim and semi-physical simulation platform respectively, the simulation and experimental results show that the tracking performance of electro-hydraulic position servo with nonlinear robust adaptive controller meet the double ten index, and verify efficiency of the method presented through simulations. © 2014 SERSC.

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