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Ingeniería Energética
versión On-line ISSN 1815-5901
Resumen
GRAU MERCONCHINI, Frank et al. Model for the simulation of the effect of harmonic distortion on single-fasetransformers. Energética [online]. 2023, vol.44, n.2, pp. 132-141. Epub 02-Ago-2023. ISSN 1815-5901.
In this work, a method for simulation of single-phase transformers using the Simulink/Matlab software is proposed. The model is based on the parameters of the equivalent circuit of the transformer and the design of a non-linear load, which causes a high harmonic distortion of the currents, allowing to evaluate the influence of this phenomenon on the losses of the machine. From the voltage and current signals in the transformer windings, their processing and the use of the ANSI/IEEE Std. C57.110 Standard, it is possible to determine the losses in the transformer considering the influence of the harmonic distortion of the current. The model is built from the spectrum of the current signals of the non-linear load and the parameters of the equivalent circuit of the transformer. The results of the simulations allow estimating the losses due to the influence of harmonics, as well as their influence on the efficiency and capability of the transformer.
Palabras clave : single-phase transformer; distribution networks; losses;harmonic distortion.