By Topic

Stability analysis and bifurcations of SEPIC DC-DC converter using a discrete-time model

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Debbat, M.B. ; Dept. d''Enginyeria Electronica, Electrica i Automatica, Univ. Rovira i Virgili, Tarragona, Spain ; El Aroudi, A. ; Giral, R. ; Martínez-Salamero, L.

In this work, stability analysis and bifurcations of a SEPIC dc-dc converter, operating in the continuous conduction mode (CCM) and under current-programmed control is carried out by means of a discrete-time model. Large-signal model is built, and its corresponding linearised version is performed in order to study the stability of the nominal (1-periodic orbit) operating regime. Varying the reference current, it is obtained that the system functioning changes from a stable buck-like converter to an unstable boost-like converter. The 1-periodic orbit loses its stability via flip bifurcation (FB) and the resulting attractor is a 2-periodic orbit. This latter, bifurcates to chaos via border collision bilification (BCB). It will be shown that allows in order to get a boost-like converter with a stable periodic behavior, the control polarity should be inverted.

Published in:

Industrial Technology, 2002. IEEE ICIT '02. 2002 IEEE International Conference on  (Volume:2 )

Date of Conference:

11-14 Dec. 2002