Gain scheduled control of hysteretic systems

Dharma Theja R. Pasala; Satish Nagarajaiah; Karolos Grigoriadis

doi:10.1117/12.817756

30 March 2009 Gain scheduled control of hysteretic systems

Dharma Theja R. Pasala, Satish Nagarajaiah, Karolos Grigoriadis

Proceedings Volume 7292, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2009; 729242 (2009) https://doi.org/10.1117/12.817756
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2009, San Diego, California, United States

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.

Citation Download Citation

Dharma Theja R. Pasala, Satish Nagarajaiah, and Karolos Grigoriadis "Gain scheduled control of hysteretic systems", Proc. SPIE 7292, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2009, 729242 (30 March 2009); https://doi.org/10.1117/12.817756

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