MATEC Web of Conferences
Volume 16, 2014CSNDD 2014 - International Conference on Structural Nonlinear Dynamics and Diagnosis
|Number of page(s)||6|
|Section||Linear and nonlinear phenomena in advanced physics|
|Published online||01 September 2014|
Stability analysis of a high-step-Up DC grid-connected two-stage boost DC-DC converter
1 GAEI research group, Dept. d’Enginyeria Electrònica, Elèctrica i Automàtica, Universitat Rovira i Virgili, 43007, Tarragona, Spain
2 Chemical Process Engineering Research Institute, Centre for Research and Technology Hellas, Thermi Thessaloniki, Greece
3 IISER-Kolkata, Mohanpur Campus, Nadia 741252, India
4 King Abdulaziz University, Jeddah, Saudi Arabia
5 Renewable Energy Research Group, King Abdulaziz University, Jeddah, Saudi Arabia
a e-mail: email@example.com
High conversion ratio switching converters are used whenever there is a need to step-up dc source voltage level to a much higher output dc voltage level such as in photovoltaic systems, telecommunications and in some medical applications. A simple solution for achieving this high conversion ratio is by cascading different stages of dc-dc boost converters. The individual converters in such a cascaded system are usually designed separately applying classical design criteria. However these criteria may not be applicable for the complete cascaded system . This paper first presents a glimpse on the bifurcation behavior that a cascade connection of two boost converters can exhibit. It is shown that the desired periodic orbit can undergo period doubling leading to subharmonic oscillations and chaotic regimes. Then, in order to simplify the analysis the second stage is considered as constant current sink and design-oriented analysis is carried out to obtain stability boundaries in the parameter space by taking into account slope interactions between the state variables in the two-different stages.
© Owned by the authors, published by EDP Sciences, 2014
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.