Autor según el artículo: Rodriguez E., Alarcón E., Iu H., El Aroudi A.

Departamento: Enginyeria Electrònica, Elèctrica i Automàtica

Autor/es de la URV: El Aroudi Chaoui, Abdelali

Palabras clave: Tdfc Switching power converter Subharmonic oscillations Stability analysis Chaos controllers Chaos Bifurcation

Resumen: This paper deals with controllers of fast-scale instabilities in DC-DC switching power converters from a frequency domain standpoint with the aim of understanding their working principle and hence simplifying their design. Some approaches for controlling fast-scale instabilities and their limitations are revisited. Considering the frequency domain transfer function of already existing controllers, a simple and extended notch filter centered at half of the switching frequency is proposed to avoid these instabilities. However, a switching converter under this controller may still exhibit the undesired slow-scale instability. Accordingly, the paper explores an alternative approach based on amplifying the harmonic at the switching frequency. Numerical simulations show that the new proposed controller can concurrently improve both fast-scale and slow-scale stability margins. The results from the different controllers are contrasted in terms of stability boundaries, indicating that the last one presents a wider stability range.

Áreas temáticas: Multidisciplinary sciences Multidisciplinary Modeling and simulation Mathematics, interdisciplinary applications Mathematics, applied Matemática / probabilidade e estatística Interdisciplinar Geociências General engineering Ensino Engineering (miscellaneous) Engenharias iv Engenharias iii Engenharias i Economia Ciências biológicas i Ciências agrárias i Ciência da computação Biodiversidade Astronomia / física Applied mathematics

Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/

ISSN: 02181274

Direcció de correo del autor: abdelali.elaroudi@urv.cat

Identificador del autor: 0000-0001-9103-7762

Fecha de alta del registro: 2023-02-18

Versión del articulo depositado: info:eu-repo/semantics/acceptedVersion

Enlace a la fuente original: https://www.worldscientific.com/doi/abs/10.1142/S0218127415501412

URL Documento de licencia: http://repositori.urv.cat/ca/proteccio-de-dades/

Referencia al articulo segun fuente origial: International Journal Of Bifurcation And Chaos. 25 (11): 1550141-

Referencia de l'ítem segons les normes APA: Rodriguez E., Alarcón E., Iu H., El Aroudi A. (2015). A Frequency Domain Approach for Controlling Fast-Scale Instabilities in Switching Power Converters. International Journal Of Bifurcation And Chaos, 25(11), 1550141-. DOI: 10.1142/S0218127415501412

DOI del artículo: 10.1142/S0218127415501412

Entidad: Universitat Rovira i Virgili

Año de publicación de la revista: 2015

Tipo de publicación: Journal Publications