Análise de circuitos de transferência de energia sem fio com topologias serie-serie e serie-paralelo

Abstract

This work presented the study of the behavior of the wireless power transfer for a series-series circuit and for a series-parallel circuit for the condition of variable distance and resonance frequency. Based on the mathematical deductions for the equivalent circuit of the primary and secondary of both the SS and SP it was possible to estimate parameters for comparison between these circuits such as power transfer capacity, efficiency and the ratio between the current in the primary and the maximum current also in primary. Using simulations and also the practical experiment it was possible to verify these parameters and validate that the SP circuit performs better than the SS circuit for larger loads and this last one has better performance with smaller loads. It was also possible to validate the behavior of the circuits both theoretically and experimentally, under the specified conditions and parameters in addition to validating that it is possible to measure the performance of the SP circuit only by measuring the primary as long as the resonance conditions are maintained.