Maximum Efficiency Tracking of Underwater Wireless Power Transmission System Based on Dynamic Coupling Coefficient Estimation

被引：0

作者：

Zheng, Zhongjiu ^{[1
]}

Ma, Yanpeng ^{[1
]}

Cao, Xingfeng ^{[1
]}

Wu, Zhilong ^{[1
]}

Bai, Jinjun ^{[1
]}

机构：

[1] College of Marine Electrical Engineering, Dalian Maritime University, Dalian

来源：

Progress In Electromagnetics Research C | 2024年 / 147卷

关键词：

Inductive power transmission;

D O I：

10.2528/PIERC24071512

中图分类号：

学科分类号：

摘要：

For the complex marine environment, the water flow disturbance causes the receiver offset, which leads to the decrease of mutual inductance and the decrease of system efficiency. This paper proposes an estimation method of dynamic coupling coefficient without communication and further realizes the maximum efficiency point tracking (MEPT) on the receiving side. By collecting the effective value of the fundamental current on the receiving side, the equivalent impedance mode equation of mutual inductance is established, and the mutual inductance is identified in real time by numerical solution method. On the basis of the identification results, the impedance matching is realized by the closed-loop controller designed on the receiving side, and the maximum efficiency point tracking of the system is realized. In this paper, the experimental platform is built, and the effectiveness of the method is verified by experiments. The experimental results show that the accuracy of mutual inductance estimation is more than 95%, and the efficiency of the system is improved by 18% after using the maximum efficiency point tracking. © 2024, Electromagnetics Academy. All rights reserved.

引用

页码：117 / 125

页数：8

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