一项关于用于长距离无线电力传输的线圈阵列最佳磁束形成的研究
Myeong-Jun Oh1, Patrick Danuor1, Young-Bae Jung1
1Department of Electronics Engineering, Hanbat National University, Daejeon 34158, Republic of Korea.
Sensors (Basel, Switzerland)
|June 10, 2023
概括
本研究介绍了一种改进的相位计算方法,用于多输入多输出无线电力传输系统 (MIMO-WPT). 新技术通过优化线圈控制数据来提高功率传输效率 (PTE),从而显著改善无线充电性能.
科学领域:
- 电气工程 电气工程
- 无线电力传输无线电力传输
- 电磁学 电磁学 电磁学 电磁学
背景情况:
- 多输入多输出无线电力传输 (MIMO-WPT) 使用多个发射线圈来提高电力传输效率 (PTE).
- 传统的MIMO-WPT系统使用基于阶段式阵列束方向的相位计算,这可能会降低信号接收,具有更多或更远的发射线圈.
- 增加发射线圈数量和距离以改善PTE可以矛盾地减少接收线圈的接收信号.
研究的目的:
- 为MIMO-WPT系统提供一种新的相位计算方法,以增强PTE.
- 通过解决增加线圈复杂性的信号退化问题来提高MIMO-WPT的性能.
- 为了使电子设备在定义空间内的高效无线充电成为可能.
主要方法:
- 为MIMO-WPT系统提出了一种新的相位计算方法.
- 该方法将线圈合效应纳入线圈控制数据的计算中.
- 根据计算的线圈控制数据,应用相位和振幅调整.
主要成果:
- 拟议的相位计算方法在MIMO-WPT系统中显著增强了PTE.
- 实验结果显示,与传统方法相比,传输系数的改善范围从2dB到10dB不等.
- 改进的方法克服了与增加的发射器线圈配置相关的信号恶化问题.
结论:
- 开发的相控MIMO-WPT方法有效地提高了无线电力传输效率.
- 这项技术可在各种空间位置为电子设备提供高效无线充电.
- 提出的方法为提高MIMO-WPT系统的性能和实用性提供了一个可行的解决方案.
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