SELF-TUNING CONTROL OF AN ELECTRO-HYDRAULIC ACTUATOR SYSTEM

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International Journal on Smart Sensing and Intelligent Systems

Professor Subhas Chandra Mukhopadhyay

Exeley Inc. (New York)

Subject: Computational Science & Engineering, Engineering, Electrical & Electronic

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VOLUME 4 , ISSUE 2 (June 2011) > List of articles

SELF-TUNING CONTROL OF AN ELECTRO-HYDRAULIC ACTUATOR SYSTEM

R. Ghazali / Y. M. Sam * / M. F. Rahmat * / K. Jusoff * / Zulfatman / A. W. I. M. Hashim

Keywords : System identification, pole placement, recursive least square, electro hydraulic actuator system, self tuning control

Citation Information : International Journal on Smart Sensing and Intelligent Systems. Volume 4, Issue 2, Pages 189-204, DOI: https://doi.org/10.21307/ijssis-2017-435

License : (CC BY-NC-ND 4.0)

Received Date : 28-March-2011 / Accepted: 21-May-2011 / Published Online: 01-June-2011

ARTICLE

ABSTRACT

Due to time-varying effects in electro-hydraulic actuator (EHA) system parameters, a self-tuning control algorithm using pole placement and recursive identification is presented. A discrete-time model is developed using system identification method to represent the EHA system and residual analysis is used for model validation. A recursive least square (RLS) method with covariance resetting technique is proposed to estimate parameters of the discrete-time model. The results show the proposed control algorithm can adapt the changes occur in model parameters compared with the fixed controller. In conclusion, a self-tuning control is required in improving the EHS system performance in industrial positioning applications.

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REFERENCES

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