IV CURVE TRACER DEVELOPMENT USING THE ELETRONIC LOAD METHOD
DOI:
https://doi.org/10.59627/cbens.2022.1059Keywords:
Photovoltaic systems, IV curve, Electronic loadAbstract
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The photovoltaic solar energy sector has been developing by stride. It´s expected that the photovoltaic modules last decades and the IV curve tracer is the equipment used to measure the modules performance. The paper presents the IV curve tracer development using the electronic load method. The prototype contains a MOSFET (Field Effect Transistor) that sweeps the photovoltaic module voltage due a variation of the potential difference between gate and drain MOSFET terminals. A voltage divisor with two resistors and a shunt were used to measurement of the module voltage and current. Two digital analog converters with 12 bits resolution were used to read those values. The UNO Arduíno was used to obtain the voltage and current values and send them to the computer, to be able to trace the IV curve of 50 Wp and 245 Wp photovoltaic modules. The IV curve performance related to its capacity of sweeping the voltage and current values of photovoltaic modules was considered functional. The voltage and current values measured are like datasheet values. The PVSyst software was used to validate the curves obtained with the IV tracer, that is considered promising and effective. The device has the ability to perform the I-V curve to identify the behavior of the graph, and the possible processes to characterize the inefficiency of the system, and from it, elaborated for the photovoltaic installation.
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References
Araújo, A.L. P. L., Lopes, A.V., Moreira, A.B, 2018. Topologias em Traçador de curva I-V para módulos fotovoltaicos, VIII CBENS – VIII Congresso Brasileiro de Energia Solar, Gramado.
Cassini, D. A.,Oliveira, M. C.C., Soares. L.G., Viana, M.M., Lins, V. F. C., Diniz. A.S. A.C., Zilles. R., Karmerski, L.L., 2018. Avaliação experimental do desempenho da degradação de módulos fotovoltaicos de Si cristalino após 15 anos de exposição em campo, VIII CBENS – VIII Congresso Brasileiro de Energia Solar, Gramado.
Greener. 2019. Estudo estratégico marcado fotovoltaico de geração distribuída.
Infineon. 2021. Datasheet IRPF2907. Disponível em https://www.infineon.com/dgdl/Infineon-IRF2907Z-DataSheet-v01_01-EN.pdf?fileId=5546d462533600a4015355ded98f1902 Acessado em 01/10/2021.
Papageorgasa, P., Piromalis, D., Valavanisa, T., Kambasisa, S., Iliopouloua, T., Vokasa, 2015. G. A low-cost and fast PV I-V curve tracer based on an open-source platform with M2M communication capabilities for preventive monitoring. Energy Procedia, v. 74, p. 423–438.
Willoughby, A., A., Osinowo, M., O. 2018. Devenlopment of na eletronic load I-V curve tracer to investigate the impacto f Harmattan aerossol loading on PV modulo pern2tkformance in southwest Nigeria. Solar Energy, v. 166, p.171-180.
Zhu, Y., Xiao, W. 2019. A comprehensive review of topologies for photovoltaic I-V curve tracer. Solar Energy, v. 196, p.346-357.
