Fuzzy-Logic-Based Gain-Scheduling Control for State-of-Charge Balance of Distributed Energy Storage Systems for DC Microgrids

Nelson Leonardo Diaz Aldana, Tomislav Dragicevic, Juan Carlos Vasquez, Josep M. Guerrero

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26 Citations (Scopus)
497 Downloads (Pure)

Abstract

A microgrid is an integration of distributed energy sources, loads and energy storage systems. Indeed, energy storage systems are required in order to ensure reliability and power quality because of the intermittent nature of renewable energy sources and changes of load demand. Apart from that, the use of distributed energy storage units provides redundancy to the system and support possible increments in load consumption. In consequence, the control strategy used in the microgrid must take into account the stored energy balance between distributed energy storage units in order to avoid over-charge or deep-discharge in one of the energy storage units. Primary control in a microgrid is responsible for power sharing among units; and droop control is typically used in this stage. This paper proposes a modular and decentralized gain-scheduling control strategy based on fuzzy logic that ensures balanced stored energy among distributed energy storage units, as well as low voltage deviation in a DC microgrid. Hardware in the loop simulations show the performance of the proposed control strategy.
Original languageEnglish
Title of host publication2014 IEEE Applied Power Electronics Conference and Exposition (APEC 2014) . Proceedings of a meeting held 16-20 March 2014, Fort Worth, Texas, USA.
Number of pages6
PublisherIEEE Press
Publication dateMar 2014
Pages2171-2176
ISBN (Print)9781479923250
ISBN (Electronic)9781479923267
DOIs
Publication statusPublished - Mar 2014
Event29th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2014 - Fort Worth, TX, United States
Duration: 16 Mar 201420 Mar 2014

Conference

Conference29th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2014
CountryUnited States
CityFort Worth, TX
Period16/03/201420/03/2014
SeriesI E E E Applied Power Electronics Conference and Exposition. Conference Proceedings
ISSN1048-2334

Keywords

  • Fuzzy logic control
  • DC microgrids
  • Energy storage system (ESS)
  • Gain-scheduling

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    Aldana, N. L. D., Dragicevic, T., Vasquez, J. C., & Guerrero, J. M. (2014). Fuzzy-Logic-Based Gain-Scheduling Control for State-of-Charge Balance of Distributed Energy Storage Systems for DC Microgrids. In 2014 IEEE Applied Power Electronics Conference and Exposition (APEC 2014) . Proceedings of a meeting held 16-20 March 2014, Fort Worth, Texas, USA. (pp. 2171-2176 ). IEEE Press. I E E E Applied Power Electronics Conference and Exposition. Conference Proceedings https://doi.org/10.1109/APEC.2014.6803606