Optimal Sizing of a PV-BESS Grid-Connected Microgrid in Southern Region of Brazil

The growing search for the electrical system modernization improve the development and implementation of the microgrids concepts. Microgrids consists in a component of the distribution grid, with connected or isolated operation capabilities, and distributed energy resources within the electrical par...

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Published in2020 6th International Conference on Electric Power and Energy Conversion Systems (EPECS) pp. 52 - 57
Main Authors da Silveira, Alexandre Schopf, da Rosa Abaide, Alzenira, da Silva, Leonardo Nogueira Fontoura, Lucchese, Felipe Cirolini, Hammerschmitt, Bruno Knevitz
Format Conference Proceeding
LanguageEnglish
Published IEEE 05.10.2020
Subjects
Batteries
Battery Storage System
Discharges (electric)
Distributed power generation
Economic Feasibility
Mathematical model
Microgrid
Microgrids
Optimization
Photovoltaic Generation
Tariffs
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Summary:The growing search for the electrical system modernization improve the development and implementation of the microgrids concepts. Microgrids consists in a component of the distribution grid, with connected or isolated operation capabilities, and distributed energy resources within the electrical parameters' limits. Thus, this work presents an iterative optimization method to obtain the optimal sizing of a microgrid combined with a photovoltaic generation and a battery storage system. The objective of the optimization is to obtain the lowest value for the annual costs of the system (ACS), maximizing solar generation, subject to operational restrictions. After presenting the annual cost of the system, an average hourly price of the microgrid was calculated, resulting in 0,414 R/kWh. This price is lower than average hourly price of utility tariffs. Hence, the results validated the proposed optimization method.
ISSN:2642-648X
DOI:10.1109/EPECS48981.2020.9304963