用任意能量源波形进行基于元材料的无线电力传输的通用分析方法:适用于三电纳米发电机:
Liangquan Xu1,2, Jiaqi Lu1,2, Jianhui Wu1,2
1College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, China.
ACS applied materials & interfaces
|January 31, 2025
概括
一种新的时间域分析方法使得高效的无线电力传输 (WPT) 能够使用超材料来实现复杂的能源. 这种方法显著提高了能量传输,显示了自动供电设备和医疗植入物的潜力.
科学领域:
- 电磁学和元材料的使用
- 无线电力传输 (WPT) 是指无线电力传输.
- 信号处理 信号处理
背景情况:
- 基于元材料的无线电力传输 (MM-WPT) 具有显著的应用潜力.
- 传统的频域分析方法仅限于特定的信号类型 (周期性,固定频) 并不适合任意波形.
- 这种局限性阻碍了使用不同能源供电的MM-WPT系统的分析.
研究的目的:
- 为MM-WPT系统开发一种创新的时间域系统分析方法.
- 为了使MM-WPT系统能够评估来自各种能源的任意波形.
- 为了证明MM-WPT对自动供电系统和植入物的效率和适用性.
主要方法:
- 为MM-WPT系统开发一个时间域分析框架.
- 使用单元冲动响应作为核心分析工具.
- 冲动响应与任意刺激源波形的卷积,以获得时间电压响应.
主要成果:
- 时间域方法显示了理论预测和实验结果在各种输入波形之间具有很高的相关性和一致性.
- 三电纳米发电机 (TENGs) 通过MM-WPT系统展示了高效的自动供电无线能量传输.
- 在MM-WPT系统中接收的能量高达传统WPT系统的59.6倍.
- 在植入物中应用的MM-WPT系统通过生物组织实现了51%的能量传输效率.
结论:
- 建议的时间域分析方法对于具有任意波形的MM-WPT系统是有效,精确和普遍适用的.
- MM-WPT系统,特别是当由TENGs提供动力时,在能源传输效率方面提供了显著的改进.
- 这些进步为优化紧和高效的自动供电无线能源应用,包括生物医学植入物铺平了道路.
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