Intelligent Control and Automation

Volume 3, Issue 3 (August 2012)

ISSN Print: 2153-0653   ISSN Online: 2153-0661

Google-based Impact Factor: 0.70  Citations  

Robust H Controller for High Precision Positioning System, Design, Analysis, and Implementation

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DOI: 10.4236/ica.2012.33030    4,119 Downloads   6,480 Views  Citations

ABSTRACT

In this paper, a systematic robust control design and analysis for a single axis precise positioner is presented. The effects of uncertainties on closed-loop stability and performance are considered in the H∞ robust controllers design. v-gap metric is utilized to validate the intelligently estimated uncertainty. The robust controllers are formulated within the frame- work of the standard H mixed sensitivity optimization problem. Furthermore, a specially designed integral-H∞ and two-degree-of-freedom 2 DOF H controllers are developed to provide improved robust performance and resolution properties. It is shown that the proposed design schemes are very effective for robust control and precise tracking performance of the servo positioning system.

Share and Cite:

S. Raafat, R. Akmeliawati and I. Abdulljabaar, "Robust H Controller for High Precision Positioning System, Design, Analysis, and Implementation," Intelligent Control and Automation, Vol. 3 No. 3, 2012, pp. 262-273. doi: 10.4236/ica.2012.33030.

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