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

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 a...

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Main Authors: L. Alvarado-Barrios, A. Rodríguez del Nozal, A. Tapia, J. L. Martínez-Ramos, D. G. Reina
Format: Article
Language:English
Published: MDPI AG 2019-06-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/12/11/2143
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author L. Alvarado-Barrios
A. Rodríguez del Nozal
A. Tapia
J. L. Martínez-Ramos
D. G. Reina
author_facet L. Alvarado-Barrios
A. Rodríguez del Nozal
A. Tapia
J. L. Martínez-Ramos
D. G. Reina
author_sort L. Alvarado-Barrios
collection DOAJ
description 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.
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spelling doaj.art-ea0bb9869e33467ebf8321ca219aa6472022-12-22T02:10:20ZengMDPI AGEnergies1996-10732019-06-011211214310.3390/en12112143en12112143An Evolutionary Computational Approach for the Problem of Unit Commitment and Economic Dispatch in Microgrids under Several Operation ModesL. Alvarado-Barrios0A. Rodríguez del Nozal1A. Tapia2J. L. Martínez-Ramos3D. G. Reina4Departamento de Ingeniería, Universidad Loyola Andalucía, 41014 Seville, SpainDepartamento de Ingeniería, Universidad Loyola Andalucía, 41014 Seville, SpainDepartamento de Ingeniería, Universidad Loyola Andalucía, 41014 Seville, SpainElectrical Engineering Department, University of Seville, 41092 Seville, SpainElectronic Engineering Department, University of Seville, 41092 Seville, SpainIn 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.https://www.mdpi.com/1996-1073/12/11/2143microgridsUnit CommitmentEconomic DispatchGenetic Algorithm
spellingShingle L. Alvarado-Barrios
A. Rodríguez del Nozal
A. Tapia
J. L. Martínez-Ramos
D. G. Reina
An Evolutionary Computational Approach for the Problem of Unit Commitment and Economic Dispatch in Microgrids under Several Operation Modes
Energies
microgrids
Unit Commitment
Economic Dispatch
Genetic Algorithm
title An Evolutionary Computational Approach for the Problem of Unit Commitment and Economic Dispatch in Microgrids under Several Operation Modes
title_full An Evolutionary Computational Approach for the Problem of Unit Commitment and Economic Dispatch in Microgrids under Several Operation Modes
title_fullStr An Evolutionary Computational Approach for the Problem of Unit Commitment and Economic Dispatch in Microgrids under Several Operation Modes
title_full_unstemmed An Evolutionary Computational Approach for the Problem of Unit Commitment and Economic Dispatch in Microgrids under Several Operation Modes
title_short An Evolutionary Computational Approach for the Problem of Unit Commitment and Economic Dispatch in Microgrids under Several Operation Modes
title_sort evolutionary computational approach for the problem of unit commitment and economic dispatch in microgrids under several operation modes
topic microgrids
Unit Commitment
Economic Dispatch
Genetic Algorithm
url https://www.mdpi.com/1996-1073/12/11/2143
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