Optimum design of autonomous PV-diesel-battery hybrid systems : case study at Tapajós-Arapiuns extractive reserve in Brazil

Hybrid energy systems are an attractive alternative for power generation, specially in isolated areas. By connecting diesel generator and battery system to solar-photovoltaic or wind-turbine based generators, several benefits are obtained: higher reliability, energy quality and less oscillations in energy delivery. In this work, a photovoltaic-diesel-battery hybrid system in Tapajós-Arapiuns extractive reserve in Brazil is studied. That hybrid system is formed by a photovoltaic generator, battery system, diesel generator and isolated loads that are variable throughout the year. For that purpose, HOMER software was employed, so load-following and cycle-charging dispatch strategies were analysed with hourly-based data for a typical year. Results showed that load-following dispatch strategy is the best option, leading to energy productions of about 85.6% from the photovoltaic generator and 14.4% from the diesel generatorCONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQCOORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPESFUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESP2016/08645-9IEEE PES Innovative smart grid technologies conference - Latin America (ISGT Latin America)This work was supported by the agencies CNPq, CAPES and FAPESP (2016/08645-9), CPFL (PD-00063-3043/2018) and BYD ENERGY through the PADIS program. We appreciate the Center for Advanced Studies in Social and Environmental Promotion for the support of and access to data of energy projects (especially the Active Forest Experimental Center