Autor según el artículo: El Aroudi A
Departamento: Enginyeria Electrònica, Elèctrica i Automàtica
Autor/es de la URV: El Aroudi Chaoui, Abdelali
Palabras clave: Voltage-mode control (vmc) Voltage-mode control Valley current-mode V2 control V control 2 V control 2 Switching converter Subharmonic oscillations Subharmonic oscillation Stability condition Polynomial functions Fourier series Discrete-time model Dc-dc converters Current-mode control (cmc) Current-mode control
Resumen: Subharmonic oscillation is an undesired phenomenon in switching converters. In past studies, its prediction has been mainly tackled by explicitly deriving a discrete-time model and then linearizing it in the vicinity of the operating point. However, the results obtained from such an approach cannot be applied for design purpose except for simple cases such as peak or valley current-mode control (CMC). Alternatively, in this brief, this phenomenon is analyzed by using a unified formal symbolic approach that can be applied for different control strategies. This approach is based on expressing the condition for subharmonic oscillation occurrence using Fourier series and then converting the result into a matrix-form expression that explicitly depends on the system parameters, making the results directly applicable for design purpose. Under certain practical conditions concerning these parameters, the matrix-form expression can be approximated by standard polynomial functions depending on the operating duty cycle. The results presented in this work clearly generalize the well-known stability condition of peak/valley CMC. © 2004-2012 IEEE.
Áreas temáticas: Engineering, electrical & electronic Engenharias iv Electrical and electronic engineering Ciência da computação Astronomia / física
Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
Direcció de correo del autor: abdelali.elaroudi@urv.cat
Identificador del autor: 0000-0001-9103-7762
Fecha de alta del registro: 2023-02-19
Versión del articulo depositado: info:eu-repo/semantics/acceptedVersion
Enlace a la fuente original: https://ieeexplore.ieee.org/document/6132459
Referencia al articulo segun fuente origial: Ieee Transactions On Circuits And Systems Ii-Express Briefs. 61 (11): 910-914
Referencia de l'ítem segons les normes APA: El Aroudi A (2014). Prediction of subharmonic oscillation in switching converters under different control strategies. Ieee Transactions On Circuits And Systems Ii-Express Briefs, 61(11), 910-914. DOI: 10.1109/TCSII.2011.2180097
URL Documento de licencia: http://repositori.urv.cat/ca/proteccio-de-dades/
DOI del artículo: 10.1109/TCSII.2011.2180097
Entidad: Universitat Rovira i Virgili
Año de publicación de la revista: 2014
Tipo de publicación: Journal Publications
Repositori URV