Real-Time Energy Management System for a Hybrid AC/DC Residential Microgrid

Enrique Rodriguez Diaz, Emilio José Palacios-Garcia, Amjad Anvari-Moghaddam, Juan Carlos Vasquez Quintero, Josep M. Guerrero

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

19 Citations (Scopus)
397 Downloads (Pure)

Abstract

This paper proposes real-time Energy Management System (EMS) for a residential hybrid ac/dc microgrid. The residential microgrid is organized in two different distribution systems. A dc distribution bus which interconnect the renewable energy sources (RES), energy storage systems (ESS) and the building’s common facilities; while the apartments are supplied by an ac distribution system connected to the grid. This architecture avoids any modifications in the electrical installation that supplies energy to the apartments. A pure dc voltage supply is not yet a feasible approach for residential buildings. This architecture increases the overall efficiency of the distribution by interconnecting the RES and ESS thorough a dc distribution bus, and therefore avoiding unnecessary dc/ac conversion stages. The real-time EMS performs an 24 hours ahead optimization
in order to schedule the charge/discharge of the ESS, and the energy injection/consumption from the grid. The EMS estimates the RES generation based on the weather forecasting, together with stochastic consumption modelling of the building. The EMS architecture and the residential microgrid have been implemented and tested in a laboratory scale setup. The results shown how the operational costs of the system are effectively decreased by 28%, even with non-accurate estimation of the RES generation or building parameters.
Original languageEnglish
Title of host publicationProceedings of 2017 IEEE Second International Conference on DC Microgrids (ICDCM)
Number of pages6
PublisherIEEE Press
Publication dateJun 2017
Pages1-6
ISBN (Electronic)978-1-5090-4479-5
DOIs
Publication statusPublished - Jun 2017
Event2017 IEEE Second International Conference on DC Microgrids (ICDCM) - Nuremburg, Germany
Duration: 27 Jun 201729 Jun 2017

Conference

Conference2017 IEEE Second International Conference on DC Microgrids (ICDCM)
CountryGermany
CityNuremburg
Period27/06/201729/06/2017
SeriesIEEE International Conference on DC Microgrids (ICDCM)

Keywords

  • Residential microgrid
  • Energy management
  • Decentralize control
  • DC Microgrid
  • Hybrid ac/dc microgrid
  • Mixed integer programming

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  • Cite this

    Diaz, E. R., Palacios-Garcia, E. J., Anvari-Moghaddam, A., Quintero, J. C. V., & Guerrero, J. M. (2017). Real-Time Energy Management System for a Hybrid AC/DC Residential Microgrid. In Proceedings of 2017 IEEE Second International Conference on DC Microgrids (ICDCM) (pp. 1-6). IEEE Press. IEEE International Conference on DC Microgrids (ICDCM) https://doi.org/10.1109/ICDCM.2017.8001053