Analytical Modeling of Self- and Mutual Inductances of DD Coils in Wireless Power Transfer Applications

Alkasir, Ali; Abdollahi, Seyed Ehsan; Abdollahi, Seyedreza; Wheeler, Patrick

Abstract

Self- and mutual inductances are major design parameters for wireless power transfer (WPT) systems. To optimize a WPT system and estimate its performance in terms of received power and efficiency, it is essential to obtain a simple, fast, and accurate calculation of these two parameters. The polarized double-D (DD) coils were selected due to their simplicity of structure, high efficiency, and low sensitivity to misalignment conditions. This paper presents analytical calculations of self- and mutual inductance using the Biot-Savart law for DD coils. The results of the analytical calculations of mutual inductance in different distances between coils were investigated, and the results of the calculations were verified using experimental and finite element method (FEM) simulation results. This paper also presents analytical and FEM-based optimization guidelines for the coupling coefficient of the transmitter coil.

Citation

Alkasir, A., Abdollahi, S. E., Abdollahi, S., & Wheeler, P. (2022). Analytical Modeling of Self- and Mutual Inductances of DD Coils in Wireless Power Transfer Applications. Journal of Electromagnetic Engineering and Science, 22(2), 162-170. https://doi.org/10.26866/jees.2022.2.r.73

• Journal Article Type: Article
• Acceptance Date: Jul 18, 2021
• Online Publication Date: Mar 31, 2022
• Publication Date: Mar 31, 2022
• Deposit Date: Jul 15, 2022
• Publicly Available Date: Jul 15, 2022
• Journal: Journal of Electromagnetic Engineering and Science
• Print ISSN: 2671-7255
• Electronic ISSN: 2671-7263
• Publisher: Korean Institute of Electromagnetic Engineering and Science
• Peer Reviewed: Peer Reviewed
• Volume: 22
• Issue: 2
• Pages: 162-170
• DOI: https://doi.org/10.26866/jees.2022.2.r.73
• Keywords: Electrical and Electronic Engineering; Computer Networks and Communications; Instrumentation; Radiation
• Public URL: https://nottingham-repository.worktribe.com/output/8955126
• Publisher URL: http://jees.kr/journal/view.php?viewtype=pubreader&number=3491