Metodologia de projeto de inversores para redução do custo de sistemas fotovoltaicos

• Ano de defesa: 2014
• Autor(a) principal: Bellinaso, Lucas Vizzotto
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Santa Maria; BR; Engenharia Elétrica; UFSM; Programa de Pós-Graduação em Engenharia Elétrica
• Palavras-chave em Português: Energia fotovoltaica; Inversor fotovoltaico; Metodologia de projeto; Custo nivelado da eletricidade; Eletrônica de potência; Photovoltaic energy; Photovoltaic inverter; Design methodology; Levelized cost of eletricity; Power electronics; CNPQ::ENGENHARIAS::ENGENHARIA ELETRICA
• Link de acesso: http://repositorio.ufsm.br/handle/1/8534

In photovoltaic systems, the lowest energy cost is not always achieved by an inverter with minimized cost or maximized efficiency. It is important to adopt methodologies that optimize the balance between system losses and costs. The Levelized Cost of Electricity minimization methodology, presented in literature, obtains an optimized inverter design, but needs variables like discount rate and maintenance costs. This study proposes a methodology for design and comparison of photovoltaic inverters that is simpler and is based on the adoption of a cost per Watt reference. It minimizes the energy cost considering the photovoltaic initial system cost and design specifications. This methodology is presented in detail, including an inverter design example that analyses losses and cost of all components, and also the irradiance of the photovoltaic installation place. Experimental results are presented to validate the proposed methodology.