多功能线圈技术用于无线电力传输应用的对齐无意识和Rx线圈大小不敏感的效率提升
Seoyeon Yoon1, Taejun Lim1, Yongshik Lee2
1Department of Electrical and Electronic Engineering, Yonsei University, Seoul, 03722, South Korea.
Scientific reports
|December 22, 2023
概括
这项研究引入了一种用于无线电力传输 (WPT) 的新型线圈技术,即使在线圈错位和尺寸差异的情况下,也保持了高效率. 该方法使用辅助线圈来优化磁流,确保在各种条件下提供强大的功率.
科学领域:
- 电气工程 电气工程
- 电磁学 电磁学 电磁学 电磁学
- 无线电力传输是无线电力传输.
背景情况:
- 感应合无线电力传输 (WPT) 系统通常由于线圈错位和发射器 (Tx) 和接收器 (Rx) 之间的尺寸不匹配而导致效率下降.
- 现有的技术在各种操作条件下都难以保持高传输效率,这限制了WPT的实际应用.
研究的目的:
- 提出一种多功能线圈技术,可以显著提高WPT系统中的传输效率.
- 解决和克服Tx和Rx线圈之间的错位和变化的线圈尺寸比率所带来的挑战.
- 为了实现可适应现实场景的强大和高效的无线电力传输.
主要方法:
- 在发射器 (Tx) 侧嵌入辅助线圈,与主线圈相连.
- 在辅助线圈上使用一个变电器来控制诱导电流并产生最佳的磁流.
- 根据对齐条件和Rx线圈大小调整磁流的自适应调整,以最大限度地合.
主要成果:
- 在不同的不对齐条件下和不同的Rx线圈大小中实现了近零无操作.
- 在尺寸对称系统中,效率达到98.1% (完美对齐),并且在135%的不对齐下保持在60%以上.
- 在尺寸不对称的系统中 (Rx线圈1/4Tx线圈大小),效率为96.1% (完美对齐),在95%的不对齐下保持在60%以上.
- 与以前的方法相比,与添加最小的组件相比,证明了更高的性能和耐受性.
结论:
- 拟议的多功能线圈技术为无线电力传输提供了一种实用且高效的解决方案.
- 该系统对错位和Rx线圈尺寸变化表现出前所未有的耐受性,使其适用于各种应用.
- 最少的额外组件确保了高质量因素 (Q),进一步促进了整体系统的效率.
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