Search

Showing total 152 results
Start Over Search Limiters Available in Library Collection Topic switches Publication Type Electronic Resources Journal ieee transactions on automatic control Publisher ieee
152 results

151. On the Convergence of Linear Switched Systems.

Author

Serres, Ulysse, Vivalda, Jean-Claude, and Riedinger, Pierre

Subjects
*LINEAR systems, *SWITCHING theory, *CASCADE converters, *ELECTRIC power system stability, *STOCHASTIC convergence, *DIFFERENTIAL equations, *ELECTRIC switchgear
Abstract

This paper investigates sufficient conditions for the convergence to zero of the trajectories of linear switched systems. We provide a collection of results that use weak dwell-time, dwell-time, strong dwell-time, permanent and persistent activation hypothesis. The obtained results are shown to be tight by counterexample. Finally, we apply our result to the three-cell converter. [ABSTRACT FROM AUTHOR]

Published
2011
Full Text
View/download PDF

152. Step Tracking in the Presence of Persistent Plant Changes.

Author

Vale, Julie R. and Miller, Daniel E.

Subjects
*STABILITY (Mechanics), *CONTROL theory (Engineering), *SET theory, *ROBUST control, *ADAPTIVE control systems, *FAULT tolerance (Engineering), *PERFORMANCE evaluation, *NONLINEAR theories
Abstract

In this paper, we consider the use of periodic controllers for simultaneous stabilization and step tracking, including the case when there are occasional, though persistent, plant changes. We consider the case of a finite set of admissible models; we provide a design procedure that yields a controller which stabilizes each such model while providing near optimal LQR step tracking. We then demonstrate that this controller has the facility to tolerate occasional (but persistent) switches between these models without an undue effect on the performance. The controller is periodic with a slight nonlinearity. [ABSTRACT FROM AUTHOR]

Published
2011
Full Text
View/download PDF