Author, as appears in the article.: El Aroudi A; Haroun R; Al-Numay MS; Calvente J; Giral R

Department: Enginyeria Electrònica, Elèctrica i Automàtica

URV's Author/s: Calvente Calvo, Francisco Javier / El Aroudi Chaoui, Abdelali / Giral Castillon, Roberto / Haroun Mohamed Abdelkarim, Reham

Keywords: Switching converters Switches Sunharmonic oscillation Stability analysis Nonlinear load Mathematical model Load modeling Integrated circuit modeling Fast-scale stability Conversion Constant power load (cpl) Bifurcation Analytical models

Abstract: © 2013 IEEE. This article focuses on analyzing the fast-scale stability in a peak current-mode-controlled boost converter with a constant power load (CPL). Since with this kind of nonlinear loads the analytical expression of the discrete-time model is not available and the existing averaged models are inadequate in describing accurately the fast-scale dynamics of these converters, a piecewise linear switched model is established by approximating the CPL by a composite linear load. The model is first demonstrated to predict accurately the same bifurcation points predicted by the switched model using the nonlinear load. The bifurcation analysis using the Floquet theory and the resulting monodromy matrix and its eigenvalues loci clearly show the effect of system parameters on its stability. The fast-scale stability boundaries in terms of suitable parameters are obtained by using eigenvalues analysis. The effect of the proportional gain of the voltage controller is studied. Finally, experimental results are further given to verify the theoretical analysis and simulation results obtaining a good agreement.

Thematic Areas: Engineering, electrical & electronic Engenharias iv Energy engineering and power technology Electrical and electronic engineering

licence for use: https://creativecommons.org/licenses/by/3.0/es/

Author's mail: javier.calvente@urv.cat abdelali.elaroudi@urv.cat roberto.giral@urv.cat reham.haroun@urv.cat

Author identifier: 0000-0001-8012-1889 0000-0001-9103-7762 0000-0001-6582-6741 0000-0002-8099-4281

Record's date: 2023-02-19

Papper version: info:eu-repo/semantics/acceptedVersion

Link to the original source: https://ieeexplore.ieee.org/abstract/document/8936393

Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/

Papper original source: Ieee Journal Of Emerging And Selected Topics In Power Electronics. 9 (1): 549-558

APA: El Aroudi A; Haroun R; Al-Numay MS; Calvente J; Giral R (2021). Fast-Scale Stability Analysis of a DC-DC Boost Converter with a Constant Power Load. Ieee Journal Of Emerging And Selected Topics In Power Electronics, 9(1), 549-558. DOI: 10.1109/JESTPE.2019.2960564

Article's DOI: 10.1109/JESTPE.2019.2960564

Entity: Universitat Rovira i Virgili

Journal publication year: 2021

Publication Type: Journal Publications