Influência da temperatura e irradiância nos parâmetros elétricos de módulos fotovoltaicos

• Ano de defesa: 2020
• Autor(a) principal: Marques, Henrique Silveira Alves
• Orientador(a): Riffel, Douglas Bressan
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Programa de Pós-Graduação: Pós-Graduação em Engenharia Elétrica
• Palavras-chave em Português: Engenharia elétrica; Energia solar; Influência da temperatura e irradiância; Parâmetros elétricos; Caracterização curva I-V; Energia fotovoltaica; Ponto quente
• Palavras-chave em Inglês: Influence of temperature and irradiance; Electrical parameters; I-V curve characterization; Photovoltaic energy; Hot spot
• Área do conhecimento CNPq: ENGENHARIAS::ENGENHARIA ELETRICA
• Link de acesso: http://ri.ufs.br/jspui/handle/riufs/16150

This master's thesis presents a study carried out on the identification of the electrical parameters of the photovoltaic module (PV) through characteristic curves measured in real climatic conditions, under various conditions of irradiance and temperature. For this, it is proposed to evaluate meta-heuristic and analytical techniques, seeking to qualify the expressions that best physically represent the electrical parameters of a diode model. In this way, this study presents a new proposal for a solution, bringing together analytical techniques and meta heuristics. The solution is based on a meta heuristic algorithm based on a JAYA optimization strategy, solving implicitly and integrated the various irradiance and temperature correction equations. The proposed method makes the union between the best of the two techniques analyzed and compared, in addition to allowing to compare and analyze the different models presented in the literature. In addition, at the end a case study is carried out and the influence of hot spots on the I-V curve and electrical parameters of the model of a diode of photovoltaic modules is evaluated. Thus, the main contributions of this dissertation are: the possibility of evaluating the models that have greater relevance in the problem of estimating the electrical parameters of a diode model; Obtaining electrical parameters and identifying the influence of temperature and irradiance under I-V curves and under the behavior of parameters; reduction of RMSE with the reached value 1.2119E-1 from the measured and estimated current through the application of the proposed method for the entire set of IV curves, presenting a reduction of the RMSE, in relation to the works presented and discussed in the state of the art for the same data set; evaluation of the impacts of hot spot on the photovoltaic modules and demonstration that the weighted average temperature (Tpond), better represented the operating temperature of the module. With the average RMSE of 4.12E-3 obtained, which represented an improvement of 48% when compared and we assigned the operating temperature to the value obtained by a sensor in the center of the module.