An Evolutionary Computational Approach for the Problem of Unit Commitment and Economic Dispatch in Microgrids under Several Operation Modes

L. Alvarado-Barrios, A. Rodríguez del Nozal, A. Tapia, J. L. Martínez-Ramos and D. G. Reina
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L. Alvarado-Barrios: Departamento de Ingeniería, Universidad Loyola Andalucía, 41014 Seville, Spain
A. Rodríguez del Nozal: Departamento de Ingeniería, Universidad Loyola Andalucía, 41014 Seville, Spain
A. Tapia: Departamento de Ingeniería, Universidad Loyola Andalucía, 41014 Seville, Spain
J. L. Martínez-Ramos: Electrical Engineering Department, University of Seville, 41092 Seville, Spain
D. G. Reina: Electronic Engineering Department, University of Seville, 41092 Seville, Spain

Energies, 2019, vol. 12, issue 11, 1-23

Abstract: In the last decades, new types of generation technologies have emerged and have been gradually integrated into the existing power systems, moving their classical architectures to distributed systems. Despite the positive features associated to this paradigm, new problems arise such as coordination and uncertainty. In this framework, microgrids constitute an effective solution to deal with the coordination and operation of these distributed energy resources. This paper proposes a Genetic Algorithm (GA) to address the combined problem of Unit Commitment (UC) and Economic Dispatch (ED). With this end, a model of a microgrid is introduced together with all the control variables and physical constraints. To optimally operate the microgrid, three operation modes are introduced. The first two attend to optimize economical and environmental factors, while the last operation mode considers the errors induced by the uncertainties in the demand forecasting. Therefore, it achieves a robust design that guarantees the power supply for different confidence levels. Finally, the algorithm was applied to an example scenario to illustrate its performance. The achieved simulation results demonstrate the validity of the proposed approach.

Keywords: microgrids; Unit Commitment; Economic Dispatch; Genetic Algorithm (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 (5)

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