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Eco-Inspired Robustness Analysis of Linear Uncertain Systems Using Elemental Sensitivities

Dande, Ketan Kiran
http://rave.ohiolink.edu/etdc/view?acc_num=osu1331104551

Abstract Details

2012, Master of Science, Ohio State University, Electrical and Computer Engineering.
Robust control of linear state space systems is an important area since uncertainties in the system can result in unacceptable system behavior. Before starting actual control design, analyzing the system to obtain detailed information about its characteristics always helps in achieving better results. This research is an attempt into understanding more about the robustness of linear uncertain systems based on their feedback structure. One of the basic reason for introducing feedback in control design is uncertainty and hence, understanding the feedback structure of a system can give useful insights in its robustness properties. Individual elements in a system interact with each other to form feedback cycles, thus forming feedback structure of the system. Ecological systems are shown to have robustness properties since they tend to be stable under the influence of external perturbations. It would be interesting to see if such principles in ecology could be useful in designing robust engineering control systems. To address these topics, the current research investigates applicability of an ecological method of finding out sensitivity of a system to its model structure into robustness analysis of engineering systems. This method has been modified and improved to address the robustness issue in linear uncertain systems. Moreover, new robustness indices have been proposed that measure the robustness of a system based on sensitivity of elements in it to its stability. Thus, this research finds ecological principles to be very helpful in designing robust control systems and stresses the importance of research to further investigate this idea.
Hooshang Hemami, PhD (Advisor)
Rama Yedavalli, PhD (Advisor)
86 p.
Electrical Engineering
robust control; ecology; linear uncertain systems; real parameter variation; robustness analysis; elemental sensitivity; feedback structure;

Recommended Citations

Citations

  • Dande, K. K. (2012). Eco-Inspired Robustness Analysis of Linear Uncertain Systems Using Elemental Sensitivities [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1331104551

    APA Style (7th edition)

  • Dande, Ketan. Eco-Inspired Robustness Analysis of Linear Uncertain Systems Using Elemental Sensitivities. 2012. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1331104551.

    MLA Style (8th edition)

  • Dande, Ketan. "Eco-Inspired Robustness Analysis of Linear Uncertain Systems Using Elemental Sensitivities." Master's thesis, Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1331104551

    Chicago Manual of Style (17th edition)

osu1331104551
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© 2012, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.