Articles producció científica> Enginyeria Electrònica, Elèctrica i Automàtica

A Frequency Domain Approach for Controlling Fast-Scale Instabilities in Switching Power Converters

  • Identification data

    Identifier: imarina:5132884
    Authors:
    Rodriguez E., Alarcón E., Iu H., El Aroudi A.
    Abstract:
    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.
  • Others:

    Author, as appears in the article.: Rodriguez E., Alarcón E., Iu H., El Aroudi A.
    Department: Enginyeria Electrònica, Elèctrica i Automàtica
    URV's Author/s: El Aroudi Chaoui, Abdelali
    Keywords: Tdfc Switching power converter Subharmonic oscillations Stability analysis Chaos controllers Chaos Bifurcation
    Abstract: 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.
    Thematic Areas: 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
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 02181274
    Author's mail: abdelali.elaroudi@urv.cat
    Author identifier: 0000-0001-9103-7762
    Record's date: 2024-09-07
    Papper version: info:eu-repo/semantics/acceptedVersion
    Link to the original source: https://www.worldscientific.com/doi/abs/10.1142/S0218127415501412
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Papper original source: International Journal Of Bifurcation And Chaos. 25 (11): 1550141-
    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
    Article's DOI: 10.1142/S0218127415501412
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2015
    Publication Type: Journal Publications
  • Keywords:

    Applied Mathematics,Engineering (Miscellaneous),Mathematics, Applied,Mathematics, Interdisciplinary Applications,Modeling and Simulation,Multidisciplinary,Multidisciplinary Sciences
    Tdfc
    Switching power converter
    Subharmonic oscillations
    Stability analysis
    Chaos controllers
    Chaos
    Bifurcation
    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
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