Articles producció científica> Enginyeria Electrònica, Elèctrica i Automàtica

Direct digital design of a sliding mode-based control of a PWM synchronous buck converter

  • Identification data

    Identifier: imarina:9282667
  • Authors:

    Vidal-Idiarte E
    Marcos-Pastor A
    Giral R
    Calvente J
    Martinez-Salamero L
  • Others:

    Author, as appears in the article.: Vidal-Idiarte E; Marcos-Pastor A; Giral R; Calvente J; Martinez-Salamero L
    Department: Enginyeria Electrònica, Elèctrica i Automàtica
    URV's Author/s: Calvente Calvo, Francisco Javier / Giral Castillon, Roberto / Martínez Salamero, Luis / Vidal Idiarte, Enric
    Keywords: Voltage reference Voltage control Variable structure systems Synchronous buck converter Small signal model Sliding mode equations Pwm power convertors Pulse width modulation control Pulse width modulation Power converters Inductor currents Heterojunction bipolar transistors Discrete-time sliding mode Direct-digital design Digital control Difference equations Dc-dc converters
    Abstract: A discrete-time sliding mode approach allowing direct digital design of a pulse width modulation (PWM) control of a synchronous buck converter is presented in this study. Without the need of a compensating ramp, a non-linear difference equation representing the output voltage dynamic behaviour is employed to demonstrate the global stability of the internal control loop of the inductor current. Discrete-time small-signal model is derived from the linearisation of the ideal sliding-mode equations, which facilitates the design of the output voltage controller. This model exhibits a zero whose value depends on the operating point coordinates and explains the duty cycle delay associated to digitally PWM controlled converters. The validity of the transfer function is demonstrated through simulation by comparing its frequency behaviour with that obtained from the more accurate switched model of the converter. Experimental results for start-up, load and line perturbations, current and voltage reference variations in a 25 W prototype switching at 100 kHz are in good agreement with the theoretical predictions. © The Institution of Engineering and Technology.
    Thematic Areas: Engineering, electrical & electronic Engenharias iv Engenharias iii Electrical and electronic engineering
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    Author's mail: luis.martinez@urv.cat roberto.giral@urv.cat javier.calvente@urv.cat enric.vidal@urv.cat
    Author identifier: 0000-0003-3344-9501 0000-0001-6582-6741 0000-0001-8012-1889 0000-0002-6016-4096
    Record's date: 2024-07-20
    Papper version: info:eu-repo/semantics/submittedVersion
    Link to the original source: https://ietresearch.onlinelibrary.wiley.com/doi/full/10.1049/iet-pel.2016.0975
    Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/
    Papper original source: Iet Power Electronics. 10 (13): 1714-1720
    APA: Vidal-Idiarte E; Marcos-Pastor A; Giral R; Calvente J; Martinez-Salamero L (2017). Direct digital design of a sliding mode-based control of a PWM synchronous buck converter. Iet Power Electronics, 10(13), 1714-1720. DOI: 10.1049/iet-pel.2016.0975
    Article's DOI: 10.1049/iet-pel.2016.0975
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2017
    Publication Type: Journal Publications
  • Keywords:

    Electrical and Electronic Engineering,Engineering, Electrical & Electronic
    Voltage reference
    Voltage control
    Variable structure systems
    Synchronous buck converter
    Small signal model
    Sliding mode equations
    Pwm power convertors
    Pulse width modulation control
    Pulse width modulation
    Power converters
    Inductor currents
    Heterojunction bipolar transistors
    Discrete-time sliding mode
    Direct-digital design
    Digital control
    Difference equations
    Dc-dc converters
    Engineering, electrical & electronic
    Engenharias iv
    Engenharias iii
    Electrical and electronic engineering
  • Documents:

  • Cerca a google

    Search to google scholar