Homogenization Methods in Simulations of Transcutaneous Energy Transmitters

Author(s)

Ferreira, Daniela W. ^[1] ; Sabariego, Ruth V. ^[2] ; Lebensztajn, Luiz ^[1] ; Kraehenbuehl, Laurent ^[3] ; Morel, Florent ^[3] ; Vollaire, Christian ^[3]

Affiliation

^[1] Univ Sao Paulo, Escola Politecn, Lab Eletromagnetismo Aplicado, BR-05508900 Sao Paulo - Brazil

^[2] Dept Elect Engn & Comp Sci, B-4000 Liege - Belgium

^[3] Univ Lyon, Ecole Cent Lyon, CNRS, Lab Ampere, UMR5005, F-69134 Ecully - France

• Document type: Journal article
• Source: IEEE Transactions on Magnetics; v. 50, n. 2 FEB 2014.
• Web of Science Citations: 4

Abstract

Transcutaneous Energy Transmitters (TETs) transfer wireless energy through an inductive link established between two pancake coils placed, respectively, outside and inside the body of a patient. The simulation of the misalignment between the coils must be performed in 3-D, e. g., with a Finite Element (FE) method. This paper introduces a homogenization method to minimize the cost of the expensive 3-D FE computation in the frequency domain. Its originality lies in the non-homogeneous TET geometry during the meshing process. The results of this technique are compared with those obtained by considering regular stranded TET coils. They showed improvements mainly at kilohertz frequencies, the typical TET operating frequency range. (AU)

• FAPESP's process: 12/06254-1 - Transcutaneous energy transmitter to supply power to ventricular assist devices
• Grantee: Daniela Wolter Ferreira Touma
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate
• FAPESP's process: 11/18341-3 - Project of a transcutaneous energy transmitter to supply power to ventricular auxiliary device
• Grantee: Daniela Wolter Ferreira Touma
• Support Opportunities: Scholarships in Brazil - Doctorate