A Multi-Criteria Computer Package-Based Energy Management System for a Grid-Connected AC Nanogrid

Carlos Roncero-Clemente, Eugenio Roanes-Lozano and Fermín Barrero-González
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Carlos Roncero-Clemente: Power Electrical and Electronic System Research Group (PE&ES), School of Industrial Engineering, University of Extremadura, 06006 Badajoz, Spain
Eugenio Roanes-Lozano: Instituto de Matemática Interdisciplinar & Departamento de Didáctica de las Ciencias Experimentales, Sociales y Matemáticas, Facultad de Educación, Universidad Complutense de Madrid, c/ Rector Royo Villanova s/n, 28040 Madrid, Spain
Fermín Barrero-González: Power Electrical and Electronic System Research Group (PE&ES), School of Industrial Engineering, University of Extremadura, 06006 Badajoz, Spain

Mathematics, 2021, vol. 9, issue 5, 1-24

Abstract: The electric system scenario has been changing during the last years moving to a distributed system with a high penetration of renewables. Due to the unpredictable behavior of some renewables sources, the development of the energy management system is considered crucial to guarantee the reliability and stability of the system. At the same time, increasing the lifespan of the energy storage system is one of the most important points to take into account. In this sense, a software package implemented in the computer algebra system Maple is proposed in this work to control a grid-connected nanogrid with hybrid energy storage system (composed by batteries and supercapacitors). The energy management system considers several rules as the state of charge of the energy storage system, the photovoltaic power generation and the load profile, the nanogrid power trend and the energy prices. The improved performance of the nanogrid is proven by simulations in MATLAB/Simulink .

Keywords: energy management system; rule-based expert systems; microgrid; nanogrid; renewable energies (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2021
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