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2023-12-19
Design of Spatial Magnetic Field Measurement System and Experimental Study of Near-Field Characteristics in Wireless Power Transfer System
By
Progress In Electromagnetics Research M, Vol. 122, 107-116, 2023
Abstract
Magnetic coupling resonant wireless power transfer (WPT) technology is widely used in a lot of power equipment because of high efficiency and safety. Magnetic field is a key factor to study the energy transmission mechanism, transmission characteristics of WPT system. At present, the research on the WPT system spatial magnetic field mainly focuses on the theoretical research and finite element simulation, with relatively little experimental research. This paper aims to establish an experimental platform for the WPT system, propose and design a magnetic field measurement system suitable for a WPT system, and conduct experimental research on the WPT system magnetic field with the measurement system. The near field region of the magnetic field is divided, and the experimental magnetic field distribution law is obtained using dimensionless and surface fitting methods. Finally, different models are obtained by surface fitting to characterize the distribution law of the experimental magnetic field. The results indicate that the dimensionless magnetic field intensity follows different forms of exponential distribution in different regions. The models are in good agreement with the actual distribution of the magnetic field, which can effectively reflect the changes in actual magnetic field intensity.
Citation
Deyu Zeng, Jianwei Kang, Xiangyang Shi, and Yang Shi, "Design of Spatial Magnetic Field Measurement System and Experimental Study of Near-Field Characteristics in Wireless Power Transfer System," Progress In Electromagnetics Research M, Vol. 122, 107-116, 2023.
doi:10.2528/PIERM23092707
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