This paper is concerned with the nonfragile H∞ controller design problem for linear time-invariant systems. The controller to be designed is assumed to have norm-bounded uncertainties. Design methods are presented for dynamic output (measurement) feedback. The designed controllers with uncertainty (i.e. nonfragile controllers) are such that the closed-loop system is quadratically stable and has an H∞ disturbance attenuation bound. Furthermore, these robust controllers degenerate to the standard H∞ output feedback control designs, when the controller uncertainties are set to zero.

Issue Section:
Technical Briefs
Keywords:
linear systems, uncertain systems, H{sup}{INFINITY} control, feedback, closed loop systems, control system synthesis, Riccati equations, matrix algebra, Controller Uncertainty, Nonfragile Controller, H∞ Control, Riccati Equations, Linear Systems
Topics:
Control equipment, Design, Feedback, Linear systems, Uncertainty, Closed loop systems
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