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Electromagnetic shielding techniques in the wireless power transfer system for charging inspection robot application
Jiao, Chaoqun Xu, Yang Li, Xiang Zhang, Xiumin Zhao, Zhibin Pang, Chengzong
Jiao, Chaoqun
Xu, Yang
Li, Xiang
Zhang, Xiumin
Zhao, Zhibin
Pang, Chengzong
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Adobe PDF, 8.48 MB
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2021-07-05
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Keywords
Aluminum,Aluminum plating,Busbars,Energy transfer,Inductive power transmission,Magnetic fields,Magnetic leakage,Plates (structural components),Robots,Shielding,Wireless charging
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Citation
Jiao, C., Xu, Y., Li, X., Zhang, X., Zhao, Z., & Pang, C. (2021). Electromagnetic shielding techniques in the wireless power transfer system for charging inspection robot application. International Journal of Antennas and Propagation, 2021 doi:10.1155/2021/9984595
Abstract
Aiming at eliminating the leakage of magnetic fields from the wireless power transfer (WPT) system, the structural and working characteristics of the WPT system for the inspection robot are analyzed and an electromagnetic shielding method combining passive shielding and active shielding is proposed in this paper. Firstly, we simulated the magnetic field distribution of the WPT system in Maxwell. Secondly, passive shielding is configured in the WPT system, and the material, size, and position of the passive shielding are studied. Then, we add active shielding to areas where passive shielding cannot achieve a good shielding effect. Based on the analysis and summary of the two methods, we shield the WPT system in the horizontal direction with the appropriate size and distance of aluminum plate, and in the vertical direction, we use the active shielding coils. Simulation and experimental results show that the scheme only slightly reduces the transmission efficiency of the system (from 80.2% to 77.6%), but the shielding ability is 34.06% higher than that of only aluminum plates. The excellent effect of the proposed shielding method is verified in our experiment.
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Copyright © 2021 Chaoqun Jiao et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Elsevier
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International Journal of Antennas and Propagation;Volume 2021
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ISSN
1687-5869
1687-5877
1687-5877