Generation-side power scheduling in a grid-connected DC microgrid

In this paper, a constrained mixed-integer programming model for scheduling the active power supplied by the generation units in storage-based DC microgrids is presented. The optimization problem minimizes operating costs taking into account a two-stage mode operation of the energy storage system so...

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Bibliographic Details
Published in2015 IEEE First International Conference on DC Microgrids (ICDCM) pp. 327 - 332
Main Authors Luna, Adriana C., Diaz, Nelson L., Meng, Lexuan, Graells, Moises, Vasquez, Juan C., Guerrero, Josep M.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2015
Subjects
Batteries
Generators
Load modeling
Mathematical model
Microgrids
System-on-chip
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Summary:In this paper, a constrained mixed-integer programming model for scheduling the active power supplied by the generation units in storage-based DC microgrids is presented. The optimization problem minimizes operating costs taking into account a two-stage mode operation of the energy storage system so that a more accurate model for optimization of the microgrid operation can be obtained. The model is used in a particular grid-connected DC microgrid that includes two renewable energy sources and an energy storage system which supply a critical load. The results of the scheduling process are including in simulation by establishing a MATLAB/Simulink model of the microgrid and setting several initial conditions of the state of charge of the energy storage system. As a result, we obtain reductions in costs and at the same time guarantee safe levels of state of charge to increase the life-time of the energy storage system.
DOI:10.1109/ICDCM.2015.7152063