DETERMINATION OF THE PARAMETERS OF AN INVERTER MODEL FOR PHOTOVOLTAIC SYSTEMS CONNECTED TO THE Grid
ADJUSTMENT BASED ON GENETIC ALGORITHM
DOI:
https://doi.org/10.59627/cbens.2022.1144Keywords:
Solar Energy, Photovoltaic, InvertersAbstract
The objective of this work is to characterize grid-tie photovoltaic inverters by adjusting the parameters of a model implemented with genetic algorithms. The used model was presented in 2007 by Sandia National Laboratories (King et al., 2007) and relates the electrical values from manufacturers data sheets to the power of the of photovoltaic array and the output power. The model allows incorporating the array voltage as an input variable, resulting in more reliable calculations, better reflecting the real behavior of the inverter. In other hand, it makes adjusting the model a more complex task. The model parameters are determined using as input the information provided from conversion efficiency curves, either from the inverter data sheet or measured in the laboratory. In this work, the implemented methodology is presented and the obtained results are compared with those indicated by the inverter manufacturer. This methodology is expected to improve the simulations of the inverters used in grid-tie photovoltaic systems.
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References
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