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Proceedings Paper

Gain scheduled control of hysteretic systems
Author(s): Dharma Theja R. Pasala; Satish Nagarajaiah; Karolos Grigoriadis
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Paper Abstract

This paper addresses tracking-control of hysteretic systems using a gain-scheduled (GS) controller. Hysteretic system with variable stiffness and damping is represented as a quasi linear parameter varying (LPV) system. Designed controller is scheduled on the measured/estimated stiffness and damping in real-time. GS controller is constructed from the parameter dependent Lyapunov matrices, which are obtained as optimal solutions of linear matrix inequalities (LMIs) that ensures the feasibility solution for closed loop system performance. The proposed method is worked on semiactive independently variable stiffness (SAIVS) device. It is shown that the gain-scheduled controller developed for the quasi-LPV system results in excellent tracking performance even in the cases where robust-H∞ controller failed to function.

Paper Details

Date Published: 30 March 2009
PDF: 11 pages
Proc. SPIE 7292, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2009, 729242 (30 March 2009); doi: 10.1117/12.817756
Show Author Affiliations
Dharma Theja R. Pasala, Rice Univ. (United States)
Satish Nagarajaiah, Rice Univ. (United States)
Karolos Grigoriadis, Univ. of Houston (United States)


Published in SPIE Proceedings Vol. 7292:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2009
Masayoshi Tomizuka, Editor(s)

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