Revista UIS Ingenierías

Vol. 23 No. 1 (2024): Revista UIS Ingenierías
Articles

Secondary Control Strategy without Communications for Unbalanced Isolated Microgrids

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  • Andrés Mauricio Salinas-Cala ,
  • Juan Manuel Rey-López ,
  • María Alejandra Mantilla-Villalobos
Andrés Mauricio Salinas-Cala
Universidad Industrial de Santander
Juan Manuel Rey-López
Universidad Industrial de Santander
María Alejandra Mantilla-Villalobos
Universidad Industrial de Santander
DOI: https://doi.org/10.18273/revuin.v23n1-2024010

Published 2024-04-16

Keywords

  • secondary control,
  • hierarchical control,
  • decentralized control,
  • isolated microgrids,
  • unbalanced loads,
  • frequency regulation,
  • distributed generation,
  • power-sharing,
  • symmetrical components,
  • negative reactive power
    • ...More
    Less

How to Cite

Salinas-Cala , A. M., Rey-López , J. M. ., & Mantilla-Villalobos, M. A. . (2024). Secondary Control Strategy without Communications for Unbalanced Isolated Microgrids. Revista UIS Ingenierías, 23(1), 115–126. https://doi.org/10.18273/revuin.v23n1-2024010

Copyright (c) 2024 Revista UIS Ingenierías

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Abstract

In the context of the energy transition, electrical microgrids have become a key energy solution for isolated zones. For this type of application, low-voltage networks with unbalanced loads are commonly connected. Despite this, many of the hierarchical control strategies presented in the literature have been designed to operate properly only in the presence of balanced loads. For this reason, it is relevant to study how control strategies can be adapted to this scenario, especially those that reduce the dependence on communications to enhance flexibility and reliability. In this sense, this paper presents a secondary layer control strategy that does not require the use of communications to operate in isolated microgrids with unbalanced loads. The strategy guarantees proper performance in terms of power-sharing between the distributed generators of the microgrid. Simulations on Matlab/Simulink are presented to validate the response of proposal.

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