Optimal Charge/Discharge Scheduling of Batteries in Microgrids of Prosumers

Mercedes Ruiz-Cortes, Eva Gonzalez-Romera, Rui Amaral-Lopes, Enrique Romero-Cadaval, João Martins, Maria Isabel Milanes-Montero, Fermin Barrero-Gonzalez

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Integration of renewable energy sources, active role of consumers, and energy management systems is currently among research priorities in energy systems. This paper proposes an innovative coordinated energy scheduling for a microgrid of neighbor prosumers with different consumption patterns. All prosumers have photovoltaic generation systems, Li-ion batteries as energy storage systems, and regular household loads. A genetic algorithm is used to schedule each prosumer's battery charge/discharge, with the aim of reducing energy exchange losses by minimizing the power in the point of interconnection of the microgrid with the main grid, with several advantages compared to classical optimization objectives, and without worsening battery lifespan degradation. Individual and coordinated strategies are compared, and self-consumption and self-sufficiency of the prosumers' set are evaluated with the aim of showing the advantage of coordination. The paper concludes that coordinated operation can contribute to improve the exploitation of energy resources in the prosumer microgrid, reducing the amount of energy interchanged with the distribution grid by approximately 13%, and, at the same time, avoiding increasing the battery cycling and consequent degradation.

Original languageEnglish
Article number8510890
Pages (from-to)468-477
Number of pages10
JournalIEEE Transactions on Energy Conversion
Volume34
Issue number1
DOIs
Publication statusPublished - 1 Jan 2019

Keywords

  • Battery management systems
  • energy resources
  • energy storage
  • genetic algorithms
  • microgrids
  • self-consumption

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    Ruiz-Cortes, M., Gonzalez-Romera, E., Amaral-Lopes, R., Romero-Cadaval, E., Martins, J., Milanes-Montero, M. I., & Barrero-Gonzalez, F. (2019). Optimal Charge/Discharge Scheduling of Batteries in Microgrids of Prosumers. IEEE Transactions on Energy Conversion, 34(1), 468-477. [8510890]. https://doi.org/10.1109/TEC.2018.2878351