Articles producció científica> Enginyeria Electrònica, Elèctrica i Automàtica

Boundaries of Subharmonic Oscillations Associated with Filtering Effects of Controllers and Current Sensors in Switched Converters under CMC

  • Identification data

    Identifier: imarina:9285495
  • Authors:

    El Aroudi A
    Calvente J
    Giral R
    Al-Numay MS
    Martinez-Salamero L
  • Others:

    Author, as appears in the article.: El Aroudi A; Calvente J; Giral R; Al-Numay MS; Martinez-Salamero L
    Department: Enginyeria Electrònica, Elèctrica i Automàtica
    URV's Author/s: Calvente Calvo, Francisco Javier / El Aroudi Chaoui, Abdelali / Giral Castillon, Roberto / Martínez Salamero, Luis
    Keywords: Switching systems Switching converter Switching circuits Switching Switched converters Subharmonic oscillations Subharmonic instability Stability criteria Stability analysis Power converters High switching frequencies Electric inverters Dc-dc power converters Dc-dc converters Dc-dc converter Current mode control Continuous conduction mode Bandwidth Additional filters
    Abstract: Subharmonic oscillation is widely studied in switching converters under current mode control (CMC). Its boundary of occurrence in the design parameter space is well known in the case of an infinite-bandwidth current sensor. However, in a practical implementation, either a limited-bandwidth current sensor or an additional filter is used. This could have an effect on the system dynamics particularly for relatively high switching frequencies. This paper discusses the effect of the additional dynamics due to the finite-bandwidth current sensor or the additional filter on the stability and subharmonic oscillation boundaries in switching converters under CMC. It is shown that a simplified model, taking into account the dynamics of the inductor current and the sensor/filter, is enough to obtain accurate results concerning the prediction of the occurrence of subharmonic instabilities in switched converters. Design-oriented equations describing the occurrence of subharmonic oscillations are used to show some problems related to the additional dynamics on the ramp compensator design in a single-switch dc-dc converter working in continuous conduction mode. Some proposed solutions are also discussed. Numerical simulations and experimental measurements corroborate the theoretical predictions. © 2016 IEEE.
    Thematic Areas: Interdisciplinar Instruments & instrumentation Engineering, electrical & electronic Engenharias iv Engenharias iii Electrical and electronic engineering Control and systems engineering Computer science applications Ciência da computação Automation & control systems
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    Author's mail: luis.martinez@urv.cat roberto.giral@urv.cat abdelali.elaroudi@urv.cat javier.calvente@urv.cat
    Author identifier: 0000-0003-3344-9501 0000-0001-6582-6741 0000-0001-9103-7762 0000-0001-8012-1889
    Record's date: 2024-07-20
    Papper version: info:eu-repo/semantics/acceptedVersion
    Link to the original source: https://ieeexplore.ieee.org/document/7163588
    Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/
    Papper original source: Ieee Transactions On Industrial Electronics. 63 (8): 4826-4837
    APA: El Aroudi A; Calvente J; Giral R; Al-Numay MS; Martinez-Salamero L (2016). Boundaries of Subharmonic Oscillations Associated with Filtering Effects of Controllers and Current Sensors in Switched Converters under CMC. Ieee Transactions On Industrial Electronics, 63(8), 4826-4837. DOI: 10.1109/TIE.2015.2458966
    Article's DOI: 10.1109/TIE.2015.2458966
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2016
    Publication Type: Journal Publications
  • Keywords:

    Automation & Control Systems,Computer Science Applications,Control and Systems Engineering,Electrical and Electronic Engineering,Engineering, Electrical & Electronic,Instruments & Instrumentation
    Switching systems
    Switching converter
    Switching circuits
    Switching
    Switched converters
    Subharmonic oscillations
    Subharmonic instability
    Stability criteria
    Stability analysis
    Power converters
    High switching frequencies
    Electric inverters
    Dc-dc power converters
    Dc-dc converters
    Dc-dc converter
    Current mode control
    Continuous conduction mode
    Bandwidth
    Additional filters
    Interdisciplinar
    Instruments & instrumentation
    Engineering, electrical & electronic
    Engenharias iv
    Engenharias iii
    Electrical and electronic engineering
    Control and systems engineering
    Computer science applications
    Ciência da computação
    Automation & control systems
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