High-frequency modelling of coils by integral formulations. Issue 5 (7th September 2015)

• Record Type: Journal Article
• Authors: Oszkár Bíró, Professor David A. Lowther and Dr Piergiorgio Alotto, Professor; Bilicz, Sándor
• Is Part Of: Compel. Volume 34:Issue 5(2015)
• Page Start: 1447
• Page End: 1459
• Publication Date: 2015-09-07
• Subjects: Electrical engineering -- Data Processing -- Periodicals; Electrical engineering -- Mathematics -- Periodicals; Electrical engineering -- Periodicals; Electronics -- Data Processing -- Periodicals; Electronics -- Mathematics -- Periodicals; 621.3
• DOI: 10.1108/COMPEL-02-2015-0042
• Languages: English
• ISSNs: 0332-1649

Abstract

<abstract> <title> <x content-type="archive" xml:space="preserve">Abstract</x> </title> <sec> <title content-type="abstract-heading">Purpose</title> <p> – The purpose of this paper is to discuss a numerically efficient simulation method for the study of the high-frequency behaviour of air-cored coils. The self-resonance phenomenon of coils can be studied which is important, e.g., in wireless power transfer (WPT). </p> </sec> <sec> <title content-type="abstract-heading">Design/methodology/approach</title> <p> – A full-wave and a quasi-stationary integral formulation is introduced. The integral equation is solved by using the Method of Moments. The complex impedance of the coil is calculated and studied in a wide frequency band. </p> </sec> <sec> <title content-type="abstract-heading">Findings</title> <p> – The integral equation method is numerically efficient compared to finite element schemes, making possible its use in design optimisation problems. </p> </sec> <sec> <title content-type="abstract-heading">Research limitations/implications</title> <p> – The present model can treat homogeneous media only. Future research will focus on the extension of the approach to heterogeneous media. </p> </sec> <sec> <title content-type="abstract-heading">Practical implications</title> <p> – The method can be used in the design optimisation of WPT systems that apply magnetically coupled resonant coils. </p> </sec> <sec> <title content-type="abstract-heading">Originality/value</title> <p> – The presented computation scheme is original. Integral equation schemes have not been used for coil modelling before, to the best of the author's knowledge.</p> </sec> </abstract>