Proceedings of the 2025 2nd International Conference on Mechanics, Electronics Engineering and Automation (ICMEEA 2025)

<Previous Article In Volume
Next Article In Volume>

Frequency Bifurcation Phenomena and Influencing Factors in Wireless Power Transfer Systems: A Comprehensive Investigation

Authors
Yanshen Zhao1, *
1Shanghai University of Electric Power Department of Electrical Engineering, Shanghai, 200090, China
*Corresponding author. Email: yanshenzhao60@gmail.com
Corresponding Author
Yanshen Zhao
Available Online 31 August 2025.
DOI
10.2991/978-94-6463-821-9_119How to use a DOI?
Keywords
Wireless Power Transmission; Frequency Bifurcation; Coupling Coefficient; Efficiency; Secondary Side Equivalent Resistance; Series Compensation
Abstract

With the increasing demand for contactless power supply in modern electronic devices and electric vehicles, wireless power transmission (WPT) technology has attracted significant attention as a promising solution. This paper studies the frequency fork and influencing factors in Wireless power transmission (WPT) system. By establishing a mathematical model of the series-compensated transformer, the influence of the coupling coefficient and the secondary-side equivalent resistance on frequency bifurcation was analyzed.The study found that when the coupling coefficient is large or the secondary-side equivalent resistance is small, the system exhibits frequency bifurcation, leading to a decline in transmission efficiency. The theoretical analysis was verified through MATLAB and Simulink simulations. The results show that reducing the coupling coefficient and increasing the secondary-side equivalent resistance can eliminate frequency bifurcation and improve system performance. This paper provides an optimization scheme for the engineering application of wireless power transmission technology, which helps to improve the efficiency and stability of the wireless charging system.

Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Download article (PDF)

<Previous Article In Volume
Next Article In Volume>
Volume Title
Proceedings of the 2025 2nd International Conference on Mechanics, Electronics Engineering and Automation (ICMEEA 2025)
Series
Advances in Engineering Research
Publication Date
31 August 2025
ISBN
978-94-6463-821-9
ISSN
2352-5401
DOI
10.2991/978-94-6463-821-9_119How to use a DOI?
Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Yanshen Zhao
PY  - 2025
DA  - 2025/08/31
TI  - Frequency Bifurcation Phenomena and Influencing Factors in Wireless Power Transfer Systems: A Comprehensive Investigation
BT  - Proceedings of the 2025 2nd International Conference on Mechanics, Electronics Engineering and Automation (ICMEEA 2025)
PB  - Atlantis Press
SP  - 1262
EP  - 1275
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-821-9_119
DO  - 10.2991/978-94-6463-821-9_119
ID  - Zhao2025
ER  -