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

  • Datos identificativos

    Identificador: imarina:5132882
    Autores:
    El Aroudi A, Giaouris D, Mandal K, Banerjee S, Al-Hindawi M, Abusorrah A, Al-Turki Y
    Resumen:
    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.
  • Otros:

    Autor según el artículo: El Aroudi A, Giaouris D, Mandal K, Banerjee S, Al-Hindawi M, Abusorrah A, Al-Turki Y
    Departamento: Enginyeria Electrònica, Elèctrica i Automàtica
    Autor/es de la URV: El Aroudi Chaoui, Abdelali
    Palabras clave: DC-DC power convertors power system stability power distribution
    Resumen: 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.
    Áreas temáticas: Engineering, electrical & electronic Engenharias iv Engenharias iii Electrical and electronic engineering
    Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 17554535
    Direcció de correo del autor: abdelali.elaroudi@urv.cat
    Identificador del autor: 0000-0001-9103-7762
    Fecha de alta del registro: 2024-09-07
    Versión del articulo depositado: info:eu-repo/semantics/publishedVersion
    Enlace a la fuente original: https://ietresearch.onlinelibrary.wiley.com/doi/full/10.1049/iet-pel.2015.0311
    URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
    Referencia al articulo segun fuente origial: Iet Power Electronics. 9 (5): 855-863
    Referencia 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 del artículo: 10.1049/iet-pel.2015.0311
    Entidad: Universitat Rovira i Virgili
    Año de publicación de la revista: 2016
    Tipo de publicación: Journal Publications
  • Palabras clave:

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