Title :
Global stability analysis of DC-DC converters using sampled-data modeling
Author :
Almér, Stefan ; Jönsson, Ulf ; Kao, Chung-Yao ; Mari, Jorge
Author_Institution :
Div. of Optimization & Syst. Theor., R. Inst. of Technol., Stockholm, Sweden
fDate :
June 30 2004-July 2 2004
Abstract :
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.
Keywords :
DC-DC power convertors; Lyapunov methods; PWM power convertors; digital control; linear matrix inequalities; stability; state-space methods; DC-DC converter; analog control; digital control; global stability analysis; pulse-width modulated system; sampled-data modeling;
Conference_Titel :
American Control Conference, 2004. Proceedings of the 2004
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-8335-4
