Análise paramétrica de bobinas para aplicação em transferência de energia sem fio

Abstract

This document brings as object of study the geometry and characteristics of coils for application in a wireless power transfer system, WPT Wireless Power Transfer. This work is based on parametric analysis using software for design and simulation Ansys Maxwell and Ansys Q3D. In previous simulation results for learning and exploring the Ansys tool, square coils were simulated, whose parameters of width of the turn and distance between turns were varied, showing the influence of these characteristics in the design of the coils. In this way, the development of this work involves carrying out simulations of pairs of coils of different geometries, circular, square and hexagonal. From the simulation, the coils were designed for experimentation in the laboratory and survey of characteristics such as inductance, coupling factor. The results of this work were obtained, taking into account the variation in the distance between the transmitting coils Tx and receiving Rx and misalignment of the studied geometric topologies. The inductances were calculated by analytical formulas, simulations and experimentation. The results were compared and the proximity of values with the inductances of simulated coils was noticed, especially when the coils were analyzed at frequencies below 100 kHz. Keywords: Coils, Parameterization, Simulation, Inductance, Coupling Coefficient, Finite Elements.