Aggregated dynamic model of active distribution networks for large voltage disturbances

Nuno Fulgêncio, Carlos Moreira, Leonel Carvalho, João Peças Lopes

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)

Abstract

This paper proposes a “grey-box” aggregated dynamic model for active distribution networks, taking into account a heterogeneous fleet of generation technologies alongside their expected behavior when taking into account the latest European grid codes requirements in terms of voltage support services. The main goal of the proposed model and underlying methodology for its identification is to represent the transient behavior of the active distribution system following large voltage disturbances occurring at the transmission side. The proposed aggregated model is composed by three main components: an equivalent power converter for generation and battery energy storage systems portfolio representation; an equivalent synchronous generation unit; and an equivalent composite load model. The model's parameters are estimated by an evolutionary particle swarm optimization algorithm, by comparing a fully-detailed model of a distribution network with the aggregated model's frequency domain's responses of active and reactive power flows, at the boundary of transmission-distribution interface substation.

Original languageEnglish
Article number106006
JournalElectric Power Systems Research
Volume178
DOIs
Publication statusPublished - Jan 2020
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2019 Elsevier B.V.

Keywords

  • Active distribution networks
  • Distributed generation
  • Dynamic modelling
  • Renewable energy systems

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