Alfredo N��ez
Hierarchical Energy Management System for Microgrid Operation Based on Robust Model Predictive Control
N��ez, Alfredo; Mar�n, Luis Gabriel; S�ez, Doris; Sumner, Mark; Pholboon, Seksak; Mu�oz-Carpintero, Diego; K�brich, Daniel
Authors
Luis Gabriel Mar�n
Doris S�ez
MARK SUMNER MARK.SUMNER@NOTTINGHAM.AC.UK
Professor of Electrical Energy Systems
Seksak Pholboon
Diego Mu�oz-Carpintero
Daniel K�brich
Abstract
© 2019 by the authors. This paper presents a two-level hierarchical energy management system (EMS) for microgrid operation that is based on a robust model predictive control (MPC) strategy. This EMS focuses on minimizing the cost of the energy drawn from the main grid and increasing self-consumption of local renewable energy resources, and brings benefits to the users of the microgrid as well as the distribution network operator (DNO). The higher level of the EMS comprises a robust MPC controller which optimizes energy usage and defines a power reference that is tracked by the lower-level real-time controller. The proposed EMS addresses the uncertainty of the predictions of the generation and end-user consumption profiles with the use of the robust MPC controller, which considers the optimization over a control policy where the uncertainty of the power predictions can be compensated either by the battery or main grid power consumption. Simulation results using data from a real urban community showed that when compared with an equivalent (non-robust) deterministic EMS (i.e., an EMS based on the same MPC formulation, but without the uncertainty handling), the proposed EMS based on robust MPC achieved reduced energy costs and obtained a more uniform grid power consumption, safer battery operation, and reduced peak loads.
Citation
Núñez, A., Marín, L. G., Sáez, D., Sumner, M., Pholboon, S., Muñoz-Carpintero, D., & Köbrich, D. (2019). Hierarchical Energy Management System for Microgrid Operation Based on Robust Model Predictive Control. Energies, 12(23), Article 4453. https://doi.org/10.3390/en12234453
Journal Article Type | Article |
---|---|
Acceptance Date | Nov 20, 2019 |
Online Publication Date | Nov 22, 2019 |
Publication Date | Nov 22, 2019 |
Deposit Date | Dec 4, 2019 |
Publicly Available Date | Dec 4, 2019 |
Journal | Energies |
Electronic ISSN | 1996-1073 |
Publisher | MDPI |
Peer Reviewed | Peer Reviewed |
Volume | 12 |
Issue | 23 |
Article Number | 4453 |
DOI | https://doi.org/10.3390/en12234453 |
Keywords | General Computer Science |
Public URL | https://nottingham-repository.worktribe.com/output/3476958 |
Publisher URL | https://www.mdpi.com/1996-1073/12/23/4453/htm |
Files
energies-12-04453
(575 Kb)
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Publisher Licence URL
https://creativecommons.org/licenses/by/4.0/
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