Research of Electro-Hydraulic Position Servo System Based on PID with Disturbance Observer

Zhao Hua Liu; San Peng Deng; Yong Xiang Jiang

doi:10.4028/www.scientific.net/KEM.693.1752

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 693Research of Electro-Hydraulic Position Servo...

Research of Electro-Hydraulic Position Servo System Based on PID with Disturbance Observer

Abstract:

According to the characteristics of the electro-hydraulic position servo system of asymmetric hydraulic cylinder controlled by symmetric valve and its performance requirements, the PID controller based on disturbance observer is introduced. The improved controller can observe the equivalent disturbances and introduce the equivalent compensation to the control system, so it can achieve suppression of disturbance. In the MATLAB Simulink environment, the simulation results show that the controller has the very good quick response, the stronger robustness and the higher tracking precision.

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Periodical:

Key Engineering Materials (Volume 693)

Pages:

1752-1757

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.693.1752

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Online since:

May 2016

Authors:

Zhao Hua Liu*, San Peng Deng, Yong Xiang Jiang

Keywords:

Asymmetric Hydraulic Cylinder, Disturbance Observer, Electro-Hydraulic Position Servo System, PID

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* - Corresponding Author

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