Autor segons l'article: El Aroudi A., Mandal K., Giaouris D., Banerjee S., Abusorrah A., Al Hindawi M., Al-Turki Y.
Departament: Enginyeria Electrònica, Elèctrica i Automàtica
Autor/s de la URV: El Aroudi Chaoui, Abdelali
Paraules clau: Stability analysis High step-up conversion ratio Dc-dc power conversion Cascaded converters
Resum: There are many applications in power electronics that demand high step‐up conversion ratio between the source and the load. A simple way of achieving such a high voltage ratio is by cascading DC-DC boost converters in a few stages. The individual converters in such a cascaded system are usually designed separately applying classical design criteria. This paper investigates the stability of the overall system of a cascade connection of two boost converters under current mode control. We first demonstrate the bifurcation behavior of the system, and it is shown that the desired periodic orbit can undergo fast‐scale period doubling bifurcation leading to subharmonic oscillations and chaotic regimes under parameter variation. The value of the intermediate capacitor is taken as a design parameter, and we determine the minimum ramp slope in the first stage required to maintain stability. It is shown that smaller capacitance values give rise to wider stability range. We explain the bifurcation phenomena using a full‐order model. Then, in order to simplify the analysis and to obtain a closed‐form expression to explain the previous observation, we develop a reduced‐order model by treating the second stage as a current sink. This allows us to obtain design‐oriented stability boundaries in the parameter space by taking into account slope interactions between the state variables in the two stages. Copyright © 2015 John Wiley & Sons, Ltd.
Àrees temàtiques: Engineering, electrical & electronic Engenharias iv Electronic, optical and magnetic materials Electrical and electronic engineering Computer science applications Astronomia / física Applied mathematics
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 00989886
Adreça de correu electrònic de l'autor: abdelali.elaroudi@urv.cat
Identificador de l'autor: 0000-0001-9103-7762
Data d'alta del registre: 2024-09-07
Versió de l'article dipositat: info:eu-repo/semantics/acceptedVersion
Enllaç font original: https://onlinelibrary.wiley.com/doi/abs/10.1002/cta.2153
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: International Journal Of Circuit Theory And Applications. 44 (5): 1127-1141
Referència de l'ítem segons les normes APA: El Aroudi A., Mandal K., Giaouris D., Banerjee S., Abusorrah A., Al Hindawi M., Al-Turki Y. (2016). Fast-Scale Stability Limits of a Two-Stage Boost Power Converter. International Journal Of Circuit Theory And Applications, 44(5), 1127-1141. DOI: 10.1002/cta.2153
DOI de l'article: 10.1002/cta.2153
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2016
Tipus de publicació: Journal Publications