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Complex Non-linear Phenomena and Stability Analysis of Interconnected Power Converters Used in Distributed Power Systems

  • Dades identificatives

    Identificador: imarina:5132882
    Autors:
    El Aroudi A, Giaouris D, Mandal K, Banerjee S, Al-Hindawi M, Abusorrah A, Al-Turki Y
    Resum:
    Distributed power systems are considered to be a key element of future power grids. Their main characteristic is the local production and consumption of energy that is accomplished using a number of power converters that interconnect local sources and loads. In this paper, a current mode controlled dc-dc converter which feeds another current mode controlled dc-dc converter is considered to meet the demands of the load. It shows that the existence of the second converter at the output has destabilising effect on the overall system. Such a system may also exhibit interactions of various types of instability that conventional modeling methods cannot predict. Slow-timescale oscillation in standalone switching converters is usually attributed to the occurrence of a Neimark-Sacker bifurcation of the fundamental periodic orbit of the discrete-time model of the system. But in the studied cascaded system, the underlying mechanism is quite different. This paper fully explains the mechanisms as well as the conditions of the occurrence of such instabilities by employing the analytical and numerical tools of the exact switched model of the system. These results can be useful for developing design guidelines to avoid such problems. Finally, the results have been validated experimentally.
  • Altres:

    Autor segons l'article: El Aroudi A, Giaouris D, Mandal K, Banerjee S, Al-Hindawi M, Abusorrah A, Al-Turki Y
    Departament: Enginyeria Electrònica, Elèctrica i Automàtica
    Autor/s de la URV: El Aroudi Chaoui, Abdelali
    Paraules clau: DC-DC power convertors power system stability power distribution
    Resum: Distributed power systems are considered to be a key element of future power grids. Their main characteristic is the local production and consumption of energy that is accomplished using a number of power converters that interconnect local sources and loads. In this paper, a current mode controlled dc-dc converter which feeds another current mode controlled dc-dc converter is considered to meet the demands of the load. It shows that the existence of the second converter at the output has destabilising effect on the overall system. Such a system may also exhibit interactions of various types of instability that conventional modeling methods cannot predict. Slow-timescale oscillation in standalone switching converters is usually attributed to the occurrence of a Neimark-Sacker bifurcation of the fundamental periodic orbit of the discrete-time model of the system. But in the studied cascaded system, the underlying mechanism is quite different. This paper fully explains the mechanisms as well as the conditions of the occurrence of such instabilities by employing the analytical and numerical tools of the exact switched model of the system. These results can be useful for developing design guidelines to avoid such problems. Finally, the results have been validated experimentally.
    Àrees temàtiques: Engineering, electrical & electronic Engenharias iv Engenharias iii Electrical and electronic engineering
    Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 17554535
    Adreça de correu electrònic de l'autor: abdelali.elaroudi@urv.cat
    Identificador de l'autor: 0000-0001-9103-7762
    Data d'alta del registre: 2024-09-07
    Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
    Enllaç font original: https://ietresearch.onlinelibrary.wiley.com/doi/full/10.1049/iet-pel.2015.0311
    URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
    Referència a l'article segons font original: Iet Power Electronics. 9 (5): 855-863
    Referència de l'ítem segons les normes APA: El Aroudi A, Giaouris D, Mandal K, Banerjee S, Al-Hindawi M, Abusorrah A, Al-Turki Y (2016). Complex Non-linear Phenomena and Stability Analysis of Interconnected Power Converters Used in Distributed Power Systems. Iet Power Electronics, 9(5), 855-863. DOI: 10.1049/iet-pel.2015.0311
    DOI de l'article: 10.1049/iet-pel.2015.0311
    Entitat: Universitat Rovira i Virgili
    Any de publicació de la revista: 2016
    Tipus de publicació: Journal Publications
  • Paraules clau:

    Electrical and Electronic Engineering,Engineering, Electrical & Electronic
    Engineering, electrical & electronic
    Engenharias iv
    Engenharias iii
    Electrical and electronic engineering
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