一个高效的无线信息和能源共传输系统,基于自补偿的感应温度敏感度错误
Tan Lu1, Libo Ding1, Keren Dai1
1School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
Sensors (Basel, Switzerland)
|April 26, 2025
概括
这项研究提高了无线电源和信息传输稳定性在广泛的温度. 直接数字合成方法可以最大限度地减少频率错误,显著提高系统可靠性.
科学领域:
- 电气工程 电气工程
- 电磁学 电磁学 电磁学 电磁学
- 无线通信系统无线通信系统
背景情况:
- 无线电源和信息传输系统由于温度波动而面临稳定性挑战.
- 在不同温度下,共振频率的变化会降低系统性能.
研究的目的:
- 在温度变化下的电磁合系统中开发共振频率的数学模型.
- 提出和验证实时频率补偿方法,以提高系统稳定性.
主要方法:
- 在电磁合系统中对共振频率进行数学建模.
- 对温度对共振的影响进行模拟和实验分析.
- 基于直接数字合成 (DDS) 的频率补偿技术的实施.
主要成果:
- 温度变化 (-40°C至50°C) 导致频率偏差,使功率偏差系数降低到35.93%.
- DDS方法将频率误差从3kHz降低到0.2kHz (93.33%的改善).
- 系统稳定性和可靠性得到了显著提高,功率偏差系数恢复到0.54%.
结论:
- 拟议的基于DDS的频率补偿有效地减轻了无线电源和信息传输系统的温度诱导的不稳定性.
- 这项研究为优化在广泛温度条件下运行的此类系统提供了关键的理论和工程见解.
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