Analysis and Comparison of the Compensation Topologies of Magnetic Coupled Resonant Wireless Charging for Electric Vehicles

Yixin Wang; Ziyi Wang; Zitong Xu

doi:10.54097/5mzg0f66

Authors

Yixin Wang
Ziyi Wang
Zitong Xu

DOI:

https://doi.org/10.54097/5mzg0f66

Keywords:

Electric vehicle; wireless charging; magnetic coupled resonant; compensation topology.

Abstract

In recent years, with the rise of electric vehicle industry and people’s increasing demand for convenient life, wireless charging technology used on electric vehicles has become one of the research hotspots. Magnetic coupled resonant wireless power transmission (MCR-WPT) has also been widely concerned because of its high suitability for electric vehicles. This paper mainly focuses on the compensation topologies of magnetic coupled resonant wireless charging for electric vehicles, analyzes 3 types of compensation topologies: P-S, P-P and LCL-LCC. Firstly, the transmission efficiency of these 3 topologies is analyzed from the theoretical point of view. Then, their transmission capacity under different coupling coefficients is compared through simulation. It is found that, in the reality where the coupling coefficients are low, P-S compensation topology should be preferred. Furthermore, by changing the load resistance, it is found that LCL-LCC compensation topology has high stability, which is suitable for scenarios that have long usage period.

Downloads

Download data is not yet available.

References

[1] Zou Y, Huang X, Tan L, et al. Current Research Situation and Developing Tendency about Wireless Power Transmission. International Conference on Electrical & Control Engineering, Wuhan, 2010.

[2] Yang F. Research on wireless charging efficiency improvement technology for electric vehicles. Jinan University, 2021.

[3] Liu S, Sun A. Research on the development of magnetic coupling resonant wireless charging technology for new energy vehicles .Automotive test report, 2024, (05): 4-6.

[4] Liu G, Zheng Q, Wang D. A wireless charging method based on electromagnetic induction.Journal of Beijing University of Information Technology ( Natural Science Edition ), 2013,28 (02): 51-54.

[5] Wang G. Analysis of the main classification and application status of wireless charging technology [ J ].China New Communications, 2018,20 (18): 99-100.

[6] Wang Y. Research on related technologies to improve the efficiency and stability of wireless charging system for electric vehicles .North China Electric Power University ( Beijing ), 2019.

[7] Liu H, Li Z, Tian Y, etc. Dynamic tuning of wireless charging using magnetic flux controllable variable inductance [ J ].Journal of Harbin University of Science and Technology, 2023,28 ( 05 ) : 11-18.

[8] Li J, Li S, Wang Y, et al. Review of research on magnetically coupled resonant wireless power transfer technology [ J ]. Electrical measurement and instrumentation, 2024,61.

[9] Wang G. Research on magnetically coupled resonant wireless energy transmission system [ D ]. Northeastern University, 2015.

[10] Feng H, Liu Y, Huang L et al. A circuit analysis method of transmission efficiency in over-coupled region of MCR-WPT system. Jiangsu Province, 2019-04-30.