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2022-06-09
Wireless Power Transmission System Based on Parity Time Symmetry for AUV
By
Progress In Electromagnetics Research M, Vol. 110, 223-234, 2022
Abstract
One of the main challenges in the application of wireless power transmission systems is to achieve stable power transmission and constant transmission power under dynamically changing coupling conditions. A parity-time symmetric model for AUV (autonomous underwater robot) is proposed. Based on the coupling mode theory, the robustness of the parity-time symmetric wireless transmission system is investigated. The theoretical analysis shows that the AUV wireless power transmission system based on parity time symmetry can automatically obtain constant output power and constant transmission efficiency when the coupling coefficient is varied. Based on this theory, the experimental prototype was built by simulating the effects of relevant parameters using LTspice. And the experiments were conducted in air medium and seawater medium respectively. The experimental results show that under the condition of parity time symmetry, the underwater wireless energy transmission voltage ratio is close to 1, and the transmission efficiency reaches 15%, in the range of 12.5 cm. The theoretical derivation has been verified.
Citation
You Fu, Zhuoqun Shi, Yu Zhu, and Zhouhua Peng, "Wireless Power Transmission System Based on Parity Time Symmetry for AUV," Progress In Electromagnetics Research M, Vol. 110, 223-234, 2022.
doi:10.2528/PIERM22032901
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