Forecast-Based Energy Management for Optimal Energy Dispatch in a Microgrid

Francisco Durán, Wilson Pavón and Luis Ismael Minchala ()
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Francisco Durán: Department of Electrical Engineering, Electronics, and Telecommunications, Universidad de Cuenca, Avenue 12 de Abril, Cuenca 010101, Ecuador
Wilson Pavón: Engineering Department, Universidad Politécnica Salesiana, Quito 170146, Ecuador
Luis Ismael Minchala: Department of Electrical Engineering, Electronics, and Telecommunications, Universidad de Cuenca, Avenue 12 de Abril, Cuenca 010101, Ecuador

Energies, 2024, vol. 17, issue 2, 1-21

Abstract: This article describes the development of an optimal and predictive energy management system (EMS) for a microgrid with a high photovoltaic (PV) power contribution. The EMS utilizes a predictive long-short-term memory (LSTM) neural network trained on real PV power and consumption data. Optimal EMS decisions focus on managing the state of charge (SoC) of the battery energy storage system (BESS) within defined limits and determining the optimal power contributions from the microgrid components. The simulation utilizes MATLAB R2023a to solve a mixed-integer optimization problem and HOMER Pro 3.14 to simulate the microgrid. The EMS solves this optimization problem for the current sampling time ( t ) and the immediate sampling time ( t + 1 ) , which implies a prediction of one hour in advance. An upper-layer decision algorithm determines the operating state of the BESS, that is, to charge or discharge the batteries. An economic and technical impact analysis of our approach compared to two EMSs based on a pure economic optimization approach and a peak-shaving algorithm reveals superior BESS integration, achieving 59% in demand satisfaction without compromising the life of the equipment, avoiding inexpedient power delivery, and preventing significant increases in operating costs.

Keywords: energy management system; renewable energy; forecast; microgrid (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: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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