Autor según el artículo: Rodriguez, Enric; El Aroudi, Abdelali; Guinjoan, Francisco; Alarcon, Eduard
Departamento: Enginyeria Electrònica, Elèctrica i Automàtica
Autor/es de la URV: El Aroudi Chaoui, Abdelali
Palabras clave: Topology System stability Subharmonic oscillations Stability boundaries Stability analysis Power electronics converters Power electronics Nonlinear systems Nonlinear dynamics and nonlinear dynamical systems Nonlinear discrete-time models Jacobian matrices Forecasting Fast scale instability Equations of state Electric power supplies to apparatus Dc-dc power converters Dc-dc converters Dc-dc converter Dc switching power supplies Controllers Closed-form expression Chaos theory Chaos Bifurcations Bifurcation (mathematics) Bifurcation Analytical approach
Resumen: This paper presents a design-oriented analytical approach for predicting fast-scale instability in power electronics converters under voltage-mode control strategy. This approach is based on the use of the ripple amplitude of the feedback control voltage as an index for predicting subharmonic oscillations in these systems. First, the work revisits the stability analysis technique based on the nonlinear discrete-time model, demonstrating that the ripple amplitude can be included within the expression of the Jacobian matrix of this model, hence giving a mathematical support to extend the ripple index to more complex topologies. A simple but representative buck converter under voltage-mode control is used to illustrate the approach. Using the ripple-based index, closed-form expressions of stability boundaries are derived. Unlike other available results obtained from existing methods, the stability boundary, in this work is expressed analytically in terms of both power stage and controller design parameters. Moreover, one can determine how these parameters are involved in the closed form expressions and, furthermore, how each parameter affects the stability of the system. The approach is validated by numerical simulations from the state equations and also experimentally within a wide range of the design parameter space. © 2011 IEEE.
Áreas temáticas: Matemática / probabilidade e estatística Interdisciplinar Hardware and architecture Engineering, electrical & electronic Engenharias iv Engenharias iii 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: 2024-10-12
Versión del articulo depositado: info:eu-repo/semantics/acceptedVersion
Enlace a la fuente original: https://ieeexplore.ieee.org/document/5982108
URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
Referencia al articulo segun fuente origial: Ieee Transactions On Circuits And Systems I-Regular Papers. 59 (1): 215-227
Referencia de l'ítem segons les normes APA: Rodriguez, Enric; El Aroudi, Abdelali; Guinjoan, Francisco; Alarcon, Eduard (2012). A ripple-based design-oriented approach for predicting fast-scale instability in DC-DC switching power supplies. Ieee Transactions On Circuits And Systems I-Regular Papers, 59(1), 215-227. DOI: 10.1109/TCSI.2011.2161396
DOI del artículo: 10.1109/TCSI.2011.2161396
Entidad: Universitat Rovira i Virgili
Año de publicación de la revista: 2012
Tipo de publicación: Journal Publications