无线传感器网络单线电能传输系统的电磁安全性分析

doi:10.19595/j.cnki.1000-6753.tces.L90235

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Abstract At present, the most mature power supply method for wireless sensor networks is battery, but this method requires frequent battery replacement, resulting in poor power supply reliability. Single wire power transfer can take into account the transmission distance and transmission efficiency, and has the characteristics of flexible distribution and non-directivity. Therefore, it can be utilized to solve the problem of reliability of battery in wireless sensor networks. Aiming at the electromagnetic safety problem of single wire power transfer system, two single wire power transfer system models with and without capacitor balls, and human body models were first established. Then, the electromagnetic safety of the two system models was simulated and analyzed. The spatial electromagnetic field distribution, the spatial electromagnetic field strength, the electric field strength in vivo and the current density in vivo of the two systems are compared. Finally, the experimental system was used to verify the simulation. The results show that, compared with the system with the capacitor balls, the value of each physical quantity of the system without capacitor balls is smaller, which is more in line with the safety standards of limiting time-varying electric and magnetic fields.

Key words： Wireless sensor networks single wire power transfer electromagnetic safety simulation analysis

Received: 04 July 2020

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	Li Yang
	Li Yao
	Wang Rui
	Zhai Yujie
	Shi Shaobo
	Hu Taocheng

Cite this article:

Li Yang,Li Yao,Wang Rui等. Electromagnetic Safety Analysis on Single Wire Power Transfer System Based on Wireless Sensor Networks[J]. Transactions of China Electrotechnical Society, 2022, 37(4): 808-815.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.L90235 OR https://dgjsxb.ces-transaction.com/EN/Y2022/V37/I4/808

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