Autor segons l'article: El Aroudi, Abdelali; Calvente, Javier; Giral, Roberto; Al-Numay, Mohammed S; Martinez-Salamero, Luis
Departament: Enginyeria Electrònica, Elèctrica i Automàtica
Autor/s de la URV: Calvente Calvo, Francisco Javier / El Aroudi Chaoui, Abdelali / Giral Castillon, Roberto / Martínez Salamero, Luis
Paraules clau: Switching systems Switching converter Switching circuits Switching Switched converters Subharmonic oscillations Subharmonic instability Stability criteria Stability analysis Power converters High switching frequencies Electric inverters Dc-dc power converters Dc-dc converters Dc-dc converter Current mode control Continuous conduction mode Bandwidth Additional filters
Resum: Subharmonic oscillation is widely studied in switching converters under current mode control (CMC). Its boundary of occurrence in the design parameter space is well known in the case of an infinite-bandwidth current sensor. However, in a practical implementation, either a limited-bandwidth current sensor or an additional filter is used. This could have an effect on the system dynamics particularly for relatively high switching frequencies. This paper discusses the effect of the additional dynamics due to the finite-bandwidth current sensor or the additional filter on the stability and subharmonic oscillation boundaries in switching converters under CMC. It is shown that a simplified model, taking into account the dynamics of the inductor current and the sensor/filter, is enough to obtain accurate results concerning the prediction of the occurrence of subharmonic instabilities in switched converters. Design-oriented equations describing the occurrence of subharmonic oscillations are used to show some problems related to the additional dynamics on the ramp compensator design in a single-switch dc-dc converter working in continuous conduction mode. Some proposed solutions are also discussed. Numerical simulations and experimental measurements corroborate the theoretical predictions. © 2016 IEEE.
Àrees temàtiques: Interdisciplinar Instruments & instrumentation Engineering, electrical & electronic Engenharias iv Engenharias iii Electrical and electronic engineering Control and systems engineering Computer science applications Ciência da computação Automation & control systems
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
Adreça de correu electrònic de l'autor: roberto.giral@urv.cat abdelali.elaroudi@urv.cat javier.calvente@urv.cat
Identificador de l'autor: 0000-0001-6582-6741 0000-0001-9103-7762 0000-0001-8012-1889
Data d'alta del registre: 2024-10-12
Versió de l'article dipositat: info:eu-repo/semantics/acceptedVersion
Enllaç font original: https://ieeexplore.ieee.org/document/7163588
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: Ieee Transactions On Industrial Electronics. 63 (8): 4826-4837
Referència de l'ítem segons les normes APA: El Aroudi, Abdelali; Calvente, Javier; Giral, Roberto; Al-Numay, Mohammed S; Martinez-Salamero, Luis (2016). Boundaries of Subharmonic Oscillations Associated with Filtering Effects of Controllers and Current Sensors in Switched Converters under CMC. Ieee Transactions On Industrial Electronics, 63(8), 4826-4837. DOI: 10.1109/TIE.2015.2458966
DOI de l'article: 10.1109/TIE.2015.2458966
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2016
Tipus de publicació: Journal Publications
Repositori URV