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Limit-cycle-oscillation in DC bus system and its death through heterogeneous coupling

  • Dades identificatives

    Identificador: imarina:9291525
    Autors:
    Subudhi, Sanjeet KumarMaity, SomnathEl Aroudi, Abdelali
    Resum:
    Stability of a complex DC bus system (DBS) is a significant design consideration because of its constant power load (CPL) characteristics of the tightly-regulated load converter. In this paper, the dynamic properties of a stand-alone buck-type DBS are investigated based upon the closed-form large-signal-averaged model. The stability-analysis-in-large around the operation point shows that CPLs create a destabilizing effect on the system that can lead to severe voltage oscillation caused by discontinuity-induced Hopf bifurcations, which are qualitatively different from the bifurcations we know for smooth dynamical systems. Instead, this paper also explores the application of “amplitude death (AD) technique” to stabilize the coupled oscillatory DBSs and show that how this technique with its necessary modifications, for example, the heterogeneity-induced AD technique characterized by two or more coupled DBSs with mismatched frequency of oscillations can provide an efficient open-loop control solution for stabilizing the coupled DBSs. Finally, simulations and experimental results are provided to validate all these concepts.
  • Altres:

    Autor segons l'article: Subudhi, Sanjeet Kumar; Maity, Somnath; El Aroudi, Abdelali
    Departament: Enginyeria Electrònica, Elèctrica i Automàtica
    Autor/s de la URV: El Aroudi Chaoui, Abdelali
    Paraules clau: Stability analysis Limit cycle oscillation (lco) amplitude death (ad) Intersecting switching surfaces Heterogeneous coupling Discontinuity-induced hopf bifurcation (dihb) Dc power systems stabilization stability analysis sliding modes limit cycle oscillation (lco) amplitude death (ad) instability heterogeneous coupling discontinuity-induced hopf bifurcation (dihb) constant-power loads buck converters
    Resum: Stability of a complex DC bus system (DBS) is a significant design consideration because of its constant power load (CPL) characteristics of the tightly-regulated load converter. In this paper, the dynamic properties of a stand-alone buck-type DBS are investigated based upon the closed-form large-signal-averaged model. The stability-analysis-in-large around the operation point shows that CPLs create a destabilizing effect on the system that can lead to severe voltage oscillation caused by discontinuity-induced Hopf bifurcations, which are qualitatively different from the bifurcations we know for smooth dynamical systems. Instead, this paper also explores the application of “amplitude death (AD) technique” to stabilize the coupled oscillatory DBSs and show that how this technique with its necessary modifications, for example, the heterogeneity-induced AD technique characterized by two or more coupled DBSs with mismatched frequency of oscillations can provide an efficient open-loop control solution for stabilizing the coupled DBSs. Finally, simulations and experimental results are provided to validate all these concepts.
    Àrees temàtiques: Engineering, electrical & electronic Engenharias iv Electronic, optical and magnetic materials Electrical and electronic engineering Computer science applications Astronomia / física Applied mathematics
    Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
    Adreça de correu electrònic de l'autor: abdelali.elaroudi@urv.cat
    Identificador de l'autor: 0000-0001-9103-7762
    Data d'alta del registre: 2024-10-12
    Versió de l'article dipositat: info:eu-repo/semantics/acceptedVersion
    Enllaç font original: https://onlinelibrary.wiley.com/doi/10.1002/cta.3541
    URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
    Referència a l'article segons font original: International Journal Of Circuit Theory And Applications. 51 (6): 2760-2776
    Referència de l'ítem segons les normes APA: Subudhi, Sanjeet Kumar; Maity, Somnath; El Aroudi, Abdelali (2023). Limit-cycle-oscillation in DC bus system and its death through heterogeneous coupling. International Journal Of Circuit Theory And Applications, 51(6), 2760-2776. DOI: 10.1002/cta.3541
    DOI de l'article: 10.1002/cta.3541
    Entitat: Universitat Rovira i Virgili
    Any de publicació de la revista: 2023
    Tipus de publicació: Journal Publications
  • Paraules clau:

    Applied Mathematics,Computer Science Applications,Electrical and Electronic Engineering,Electronic, Optical and Magnetic Materials,Engineering, Electrical & Electronic
    Stability analysis
    Limit cycle oscillation (lco) amplitude death (ad)
    Intersecting switching surfaces
    Heterogeneous coupling
    Discontinuity-induced hopf bifurcation (dihb)
    Dc power systems
    stabilization
    stability analysis
    sliding modes
    limit cycle oscillation (lco) amplitude death (ad)
    instability
    heterogeneous coupling
    discontinuity-induced hopf bifurcation (dihb)
    constant-power loads
    buck converters
    Engineering, electrical & electronic
    Engenharias iv
    Electronic, optical and magnetic materials
    Electrical and electronic engineering
    Computer science applications
    Astronomia / física
    Applied mathematics
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