Advantages of Minimizing Energy Exchange Instead of Energy Cost in Prosumer Microgrids

Eva González-Romera, Mercedes Ruiz-Cortés, María-Isabel Milanés-Montero, Fermín Barrero-González, Enrique Romero-Cadaval, Rui Amaral Lopes and João Martins
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Eva González-Romera: Electrical, Electronic and Control Engineering Department, University of Extremadura, 06006 Badajoz, Spain
Mercedes Ruiz-Cortés: Electrical, Electronic and Control Engineering Department, University of Extremadura, 06006 Badajoz, Spain
María-Isabel Milanés-Montero: Electrical, Electronic and Control Engineering Department, University of Extremadura, 06006 Badajoz, Spain
Fermín Barrero-González: Electrical, Electronic and Control Engineering Department, University of Extremadura, 06006 Badajoz, Spain
Enrique Romero-Cadaval: Electrical, Electronic and Control Engineering Department, University of Extremadura, 06006 Badajoz, Spain
Rui Amaral Lopes: Faculty of Sciences and Technology—NOVA, University of Lisbon, 2829516 Caparica, Portugal
João Martins: Faculty of Sciences and Technology—NOVA, University of Lisbon, 2829516 Caparica, Portugal

Energies, 2019, vol. 12, issue 4, 1-18

Abstract: Microgrids of prosumers are a trendy approach within the smart grid concept, as a way to increase distributed renewable energy penetration within power systems in an efficient and sustainable way. Single prosumer individual management has been previously discussed in literature, usually based on economic profit optimization. In this paper, two novel approaches are proposed: firstly, a different objective function, relative to the mismatch between generated and demanded power, is tested and compared to classical objective function based on energy price, by means of a genetic algorithm method; secondly, this optimization procedure is applied to batteries’ coordinated scheduling of all the prosumers composing a community, instead of single one, which better matches the microgrid concept. These approaches are tested on a microgrid with two household prosumers, in the context of Spanish regulation for self-consumption. Results show noticeably better performance of mismatch objective function and coordinated schedule, in terms of self-consumption and self-sufficiency rates, power and energy interchanges with the main grid, battery degradation and even economic benefits.

Keywords: distributed energy resources; electric energy storage; energy management system; genetic algorithm; microgrid; prosumer; self-consumption (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (15)

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