Sistemas autônomos de iluminacão pública em corrente contínua

• Ano de defesa: 2014
• Autor(a) principal: Ramirez Lopez, Julian Alberto [UNESP]
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Estadual Paulista (Unesp)
• Palavras-chave em Português: Energia elétrica - Produção; Energia elétrica - Distribuição; Iluminação municipal; Correntes continuas; Diodos emissores de luz; Electric power production
• Link de acesso: http://hdl.handle.net/11449/111125

This research presents an alternative to conventional street lighting circuits through a Microsystem Isolated Generation and Distribution of Electric Power (MIGDI) fed by direct current through photovoltaic panels. The proposed radial circuit is formed of 20 points of lighting, which comprises a subdivision of an urban lighting circuit composed of 293 nodes in total. For the allocation of distributed generation (DG), a Mixed Integer Quadratic Programming (PQIM) was solved using algebraic modeling language AMPL ( Modeling Language for Mathematical Programming ) in the CPLEX solver, which uses optimization algorithm classical Branch and Bound ( B & B ). A comparative analysis, considering technical, constructive, environmental and economic aspects is made, from an initial investment, comparing vapor lamps high pressure sodium ( HPS ) of 70 W, 220 Vac, normally used in public lighting, and LED ( Light - Emitting Diode) technology 30W high brightness, 12 and 24 Vdc . Time of return ( payback ) for a horizon of twenty five years ( lifetime of photovoltaic solar panels) is estimated to determine the savings from the replacement of HPS lamp by LED technology in the proposed circuit