A novel coil array compensation structure design with high-misalignment tolerance for UAV-enable WPT system

IF 1.6 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

Electrical Engineering Pub Date : 2024-08-13 DOI:10.1007/s00202-024-02660-w

Cancan Rong, Jin Chang, Yachao Liu, Zhi Ling, Yunpeng Xu, Qibiao Lu, Yujie Liu, Hailin Zhao, Haoyang Wang, Chenyang Xia

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引用次数: 0

Abstract

The problem of charging unmanned aerial vehicles (UAVs) is an important application area for wireless power transmission (WPT). However, the flight characteristics of UAVs make it difficult for the traditional single-coil coupling mechanism to ensure alignment between the transmitting and receiving ends. It also has poor anti-skewing performance and a cumbersome optimization process, which ultimately decreases the efficiency of charging UAVs. To address this problem, this paper takes the 2 × 2 square coil array as research object, analyzes the distribution characteristics of the axial magnetic field at a specific height, proposes a "cross" compensation structure, and adopts genetic algorithm to optimize the side length and turns of the compensation coil. The goal is to significantly improve the axial magnetic field uniformity in the charging area and reduce the degree of magnetic field leakage. Finally, the effectiveness and superiority of the proposed "crossover" compensation structure and its optimization method are demonstrated through the construction and testing of the system experimental platform, which significantly improves the anti-offset performance and transmission efficiency of the WPT system.

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适用于无人机 WPT 系统的新型线圈阵列补偿结构设计，具有高偏差容限

无人飞行器（UAV）充电问题是无线电力传输（WPT）的一个重要应用领域。然而，由于无人飞行器的飞行特性，传统的单线圈耦合机构很难保证发射端和接收端的对准。同时，它的抗倾斜性能较差，优化过程繁琐，最终降低了无人机的充电效率。针对这一问题，本文以 2 × 2 方形线圈阵列为研究对象，分析了特定高度轴向磁场的分布特征，提出了 "十字 "补偿结构，并采用遗传算法对补偿线圈的边长和匝数进行了优化。其目的是显著改善充电区域的轴向磁场均匀性，降低磁场泄漏程度。最后，通过系统实验平台的搭建和测试，证明了所提出的 "交叉 "补偿结构及其优化方法的有效性和优越性，显著提高了 WPT 系统的抗偏移性能和传输效率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Electrical Engineering 工程技术-工程：电子与电气

CiteScore

3.60

自引率

16.70%

发文量

审稿时长

>12 weeks

期刊介绍： The journal “Electrical Engineering” following the long tradition of Archiv für Elektrotechnik publishes original papers of archival value in electrical engineering with a strong focus on electric power systems, smart grid approaches to power transmission and distribution, power system planning, operation and control, electricity markets, renewable power generation, microgrids, power electronics, electrical machines and drives, electric vehicles, railway electrification systems and electric transportation infrastructures, energy storage in electric power systems and vehicles, high voltage engineering, electromagnetic transients in power networks, lightning protection, electrical safety, electrical insulation systems, apparatus, devices, and components. Manuscripts describing theoretical, computer application and experimental research results are welcomed. Electrical Engineering - Archiv für Elektrotechnik is published in agreement with Verband der Elektrotechnik Elektronik Informationstechnik eV (VDE).