ESTIMATION OF THE DOUBLE-LAYER COILS MODEL ACCURACY FOR WIRELESS POWER TRANSFER USING FINITE ELEMENT MODELLING

Urgency of the research. This topic is actual with increasing demand and interest to the wireless chargers from researchers and users. Target setting. In the development of wireless energy transfer systems it is needed to design inductors with different precision parameters in accordance with the tasks. Therefore, need to know how accurately design an inductor model in one of the popular packages.Actual scientific researches and issues analysis. Recent works on the various programs used to model electromagnetic processes have been reviewed. From the references about the inductors structure, the necessary information was collected for analysis and comparison.Uninvestigated parts of general matters defining. Until recently, information on the various structures and inductors components for wireless energy transmission has not been collected and summarized in a comparably convenient in form. The question of the inductor models accuracy in finite element programs has also not enough attention was paid.The research objective. In order to understand the design object, it is necessary to analyze and compare the structure of the inductors. Then need to evaluate the accuracy of modeling two identical double-layer coils for wireless energy transfer by finite element method in a popular finite element tool.The statement of basic materials. The structure of inductances, namely coil geometry, shape and material of ferrite core, was analyzed. Their role in the shielding of electromagnetic radiation and the direction of the magnetic induction flux and influence on the value of self-inductance are determined. A simplified model of inductance is developed and its electromagnetic parameters are determined.Conclusions. The results of double-layer coils modeling are confirmed. Proven that the ANSYS EM Suite is an accurate and reliable tool, and even the simplified inductance models fully meet the requirements of engineers and researchers.