室内光能采集用于使用小型光伏模块的电池驱动传感器
Andrew Shore1, John Roller1, Jennifer Bergeson1
1National Institute of Standards and Technology, Gaithersburg, MD 20899 USA.
概括
光伏 (PV) 迷你模块可以通过室内灯光为物联网 (IoT) 设备供电. 更高效的GaInP和GaAs光伏电池在LED照明下比 (Si) 电池更快地充电电池.
科学领域:
- 材料科学 材料科学 材料科学
- 收集能源 收集能源
- 电气工程 电气工程
背景情况:
- 对物联网 (IoT) 设备越来越感兴趣,需要自动供电的解决方案.
- 光伏 (PV) 技术为收集室内环境光提供了一种可行的方法.
- 高效的能源采集对于无线传感器的可持续性至关重要.
研究的目的:
- 评估不同光伏技术的室内能源采集性能.
- 在LED照明下比较单晶 (c-Si),GaInP和GaAs光伏小模块的电池充电能力.
- 为了证明使用收获的室内光线为物联网设备供电的可行性.
主要方法:
- 采用三种光伏技术 (c-Si,GaInP,GaAs) 在3000K的LED光下以1000lx的速度充电电池的特点.
- 测量了每个光伏类型的电池充电时间,从低到全充.
- 集成了一个无线温度传感器模块来评估电力消耗与充电功率.
主要成果:
- 与c-Si相比,GaInP和GaAs光伏小模块的电池充电时间较短.
- 对GaInP和GaAs的更快充电时间归因于它们的光谱响应与LED光源相匹配.
- 无线传感器模块的功耗低于低效的c-Si迷你模块提供的充电功率.
结论:
- 在典型的室内照明条件下,光伏技术有效为物联网设备供电.
- 太阳能迷你模块的效率和光谱匹配显著影响电池充电速度.
- 室内光伏能源采集为自动供电的无线传感器提供了一个可行的解决方案.
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