Optimized Operation of on-grid generation systems using computational modeling

• Grant number: 24/16332-7
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: January 01, 2025
• End date: December 31, 2025
• Field of knowledge: Engineering - Civil Engineering
• Principal Investigator: Vinícius de Carvalho Neiva Pinheiro
• Grantee: Yunes Said Aurabi
• Host Institution: Faculdade de Engenharia Civil, Arquitetura e Urbanismo (FEC). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil

Abstract

Brazil is known worldwide for its electrical mix, largely composed of renewable energy. The modality that stands out is on-grid distributed generation, which combines energy purchase from the grid with generation through photovoltaic panels. Adding batteries to on-grid systems can increase energy efficiency, as these devices can store energy during periods of excess generation. The use of LED lamps in on-grid systems is beneficial because such equipment works with direct current and low voltages, just like photovoltaic panels. This way, there is no need for conversion drivers in the lamps, which reduces energy loss in the system. Complex electrical circuits have several possibilities for power flow, therefore, without optimization, the system does not operate to determine the best power flow aiming at energy and economic efficiency. The research investigates the optimal power flow in a circuit formed by a photovoltaic panel, battery, load equivalent to a 12V lighting system and connection to the distribution grid at different energy rates. The model will be computationally simulated in Excel and the determination of the optimal flow will be handled by the plug-in Solver, aiming to show that optimization in on-grid systems generates economic benefits.