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Global stability analysis of DC-DC converters using sampled-data modeling

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4 Author(s)
Almer, S. ; Div. of Optimization & Syst. Theor., R. Inst. of Technol., Stockholm, Sweden ; Jonsson, U. ; Chung-Yao Kao ; Mari, J.

The paper presents stability analysis of a class of pulse-width modulated (PWM) systems which incorporates many different DC-DC converters. Two types of pulse-width modulation (digital and analog control) are considered. A procedure is developed for systematic search for Lyapunov functions. The state space is partitioned in such a way that stability is verified if a set of coupled linear matrix inequalities (LMIs) is feasible. Global stability is considered as well as the computation of local regions of attraction.

Published in:

American Control Conference, 2004. Proceedings of the 2004  (Volume:5 )

Date of Conference:

June 30 2004-July 2 2004