TY - JOUR
T1 - Advantages of minimizing energy exchange instead of energy cost in prosumer microgrids
AU - González-Romera, Eva
AU - Ruiz-Cortés, Mercedes
AU - Milanés-Montero, María Isabel
AU - Barrero-González, Fermín
AU - Romero-Cadaval, Enrique
AU - Lopes, Rui Amaral
AU - Martins, João
N1 - grant number TEC2016-77632-C3-1-R (AEI/FEDER, UE).
UID/EEA/00066/2013.
PY - 2019/2/22
Y1 - 2019/2/22
N2 - 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.
AB - 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.
KW - Distributed energy resources
KW - Electric energy storage
KW - Energy management system
KW - Genetic algorithm
KW - Microgrid
KW - Prosumer
KW - Self-consumption
UR - http://www.scopus.com/inward/record.url?scp=85061983232&partnerID=8YFLogxK
U2 - 10.3390/en12040719
DO - 10.3390/en12040719
M3 - Article
AN - SCOPUS:85061983232
VL - 12
JO - Energies
JF - Energies
SN - 1996-1073
IS - 4
M1 - 719
ER -