A Three-Dimensional Discontinuous Galerkin Time-Domain Finite Element Method for Electromagnetic Modeling of Wireless Power Transfer Coils

IEEE Open Journal of the Industrial Electronics Society

Bita Arabsalmanabadi¹  Kamal Al-Haddad²  Steven Dufour³  Homa Arab⁴  Victor H. G. Amador⁵ 

[1] Département De Génie Électric, &x00C9;Département De Mathématiques Et De Génie Industriel, Polytechnique Montr&x00E9;al, Canada;cole De Technologie Sup&x00E9;rieure, Montr&x00E9;

关键词: Coils;    computational modeling;    discontinuous Galarkin method;    electromagnetic propagation;    finite element analysis;    mathematical model;   

DOI  :  10.1109/OJIES.2021.3077389

来源: DOAJ

【 摘 要 】

Inductive coupling based wireless power transfer (WPT) is a popular short-range power delivery mechanism for many industrial, biomedical, and home electronic appliances applications. A numerical methodology is needed for the analysis of the electromagnetic propagation, radiation, scattering and coupling of highly efficient WPT systems. This study is based on the discontinuous Galerkin time-domain (DGTD) finite element method. A brief survey of the DGTD method is given, which is a finite element method using discontinuous piecewise polynomials as basis functions and numerical fluxes based on up-winding for stability. DGTD method is characterized by the fact that no continuity is enforced between the elements, then it is easy to parallelize and results in fast solvers. Even though the finite element method is used by a few researchers to study WPT problems, we found no study using the DGTD method to study WPT problems, which is surprising given that this discretization technique seems particularly well suited for these problems. A design of two coils at the frequency of 3 MHz is introduced, and the effects of the distance and misalignment between two coils on the mutual coupling are studied. The numerical results are validated by experimental and analytical results.

【 授权许可】

Unknown