摘要
在无线电能传输系统中,不可避免地会出现发射线圈和接收线圈未对准的情况,这会降低线圈的耦合系数和传输效率。目前常用的线圈,例如DD线圈、DDQ线圈等,仅在一个方向上具有良好的偏移特性。为了解决这个问题,该文提出了一种在多个方向上都有良好抗偏移能力的QDS线圈。首先研究了线圈的磁耦合结构,推导了QDS线圈互感的理论表达式;然后利用JMAG软件,对方形线圈、DD线圈、QD线圈和QDS线圈进行仿真,通过分析线圈的磁感应强度分布特性和偏移特性,证明QDS线圈具有较强的抗偏移能力;最后,搭建了平台,测量线圈偏移时的互感,通过与方形线圈、DD线圈和QD线圈进行比较分析,验证了QDS线圈的优势。
In the wireless power transfer system, the misalignment of transmitting and receiving coils is inevitable, which reduces the coupling coefficient and efficiency of the coils. However, the existing coils, such as double D(DD), have good misalignment tolerance in only one direction. In order to solve this problem, a quadruple D square coil with high misalignment tolerance in multi directions is proposed.Firstly, the magnetic coupling structure of the coil is studied, and the theoretical expression of the mutual inductance of the QDS coil is derived. Then the JMAG software was used to simulate square coils, DD coils, QD coils and QDS coils. By analyzing the magnetic flux density distribution characteristics and misalignment characteristics of the coils, it is proved that QDS coils have strong anti-offset ability. Finally,a platform was built to measure the mutual inductance when the coil was offset, and the advantages of the QDS coil were verified by comparison and analysis with the square coil, DD coil and QD coil.
作者
孔令超
李厚基
潘搏
王勇
Kong Lingchao;Li Houji;Pan Bo;Wang Yong(School of Electronic Information and Electrical Engineering Shanghai Jiao Tong University,Shanghai 200240;Shanghai Academy of Spaceflight Technology,Shanghai 201109 China)
出处
《电工技术学报》
EI
CSCD
北大核心
2022年第13期3361-3371,共11页
Transactions of China Electrotechnical Society
基金
国家自然科学基金资助项目(51577118)。
