Research Progress on the Impact of Coil Offset on Power in Wireless Charging and Countermeasures
DOI:
https://doi.org/10.62051/zytz0g55Keywords:
Wireless Charging; Wireless Power Transmission; Coil Offset Technology; Transmission Power.Abstract
Wireless charging, as an important technology, is constantly being applied in people's lives. However, there is still the problem that coil offset affects power transmission. Currently, solutions such as multi-coil array adaptive compensation are adopted, which to a certain extent increase the transmitted power and reduce energy loss, providing more application fields for wireless power transmission technology. Based on the development of wireless charging technology, this paper sorts out the principles of wireless power transmission and some studies on coil offset from 2010 to 2025. At present, the research on the problem of coil offset still has limitations in terms of single research scenario, theoretical model deviation from reality, and imbalance between demand and cost.
Downloads
References
[1] Li, X. B. (2018, November 19). The Road of Wireless Charging [EQ/OL]. Retrieved September 2, 2025.
[2] Anonymous. (2020, February 28). Application of Wireless Charging Technology in Electric Toothbrushes [EB/OL]. Retrieved September 2, 2025.
[3] PConline Pacific Technology. (2023, April 16). Infinite Future, Future Wireless: The History of Qi Wireless Charging Technology [EB/OL]. Retrieved September 2, 2025.
[4] Shandong Xiehe University, School of Computer Science. (2014, August 1). Latest Long-Distance Wireless Power Supply Can Reach Up to 5 Meters [EB/OL]. Retrieved September 2, 2025.
[5] Lee, S.-Y., Park, J.-H., Kim, D.-H., & Cho, H.-J. (2025). Metamaterial-based magnetic shielding layer for quasi-static magnetic field suppression in wireless power transfer systems. Journal of Materials Science and Technology, 226, 1 – 15.
[6] Huang, J. L. (2022). Research and Design of a Wireless Charging Array Coil System Based on Magnetic Coupling Resonance [D]. Mianyang: Southwest University of Science and Technology.
[7] Kurs, A., Karalis, A., Moffatt, R., Joannopoulos, J. D., Fisher, P., & Soljačić, M. (2007). Wireless power transfer via strongly coupled magnetic resonances. Science, 317 (5834), 83 – 86.
[8] Brown, W. C. (1964). The history of wireless power transmission. Solar Energy, 56 (1), 3 – 21.
[9] Yang, Y., Zhang, Z., Xu, B., et al. (2025). Research on DDDQ-type magnetic coupling structure of wireless charging system for electric vehicles. Automotive Engineering, 47 (06), 1007 – 1021.
[10] Chen, W. Q. (2023). Research on lightweight wireless charging system for unmanned aerial vehicles (UAVs) [D]. Harbin: Harbin Institute of Technology.
[11] Li, Z. Z., Zhang, Y. D., Yu, S. S., & Zhang, G. D. (2025). A hybrid wireless power transfer system with high misalignment tolerance using diagonal crossed solenoid magnetic coupler. Chinese Journal of Electrical Engineering, 11 (1), 138 – 150.
[12] Huang, M. L. (2022). Research on wireless charging system for inspection robots based on multi-coil coupling [D]. Hangzhou: Zhejiang University of Science and Technology.
[13] Kim, S., Lee, J., & Park, J. (2020). Design to minimize coupling coefficient between transmitter coils based on deep learning for wireless power transfer with multi-transmitter. IEEE Transactions on Industrial Electronics, 68 (1), 733 – 742.
[14] Wang, H., Jing, F. S., & Li, Y. (2021). Optimization of conical coil WPT system based on optimal transmission radius. Electric Drive, 51 (24), 1 – 6.
[15] Yang, Y., Chen, W., Dai, L., Wang, R., & Houran, M. A. (2018). An optimization design of the moving ball-shaped coil used for wireless charging, 1 – 4.
Downloads
Published
Issue
Section
License
Copyright (c) 2025 Transactions on Computer Science and Intelligent Systems Research
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
