串行/并行开关用于从热电发电机中增加电力提取量
Shingo Terashima1, Ryuji Sorimachi1, Eiji Iwase1,2
1Department of Applied Mechanics and Aerospace Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan.
Micromachines
|August 29, 2024
概括
本研究介绍了一种方法,通过切换电路配置来增加热电发电机 (TEG) 的功率. 这种优化在各种条件下提高了能源采集效率.
科学领域:
- 收集能源 收集能源
- 材料科学 材料科学 材料科学
- 电气工程 电气工程
背景情况:
- 热电发电机 (TEG) 为废热回收和能源回收提供了一个有前途的途径.
- 优化TEG的输出功率对于其实际应用至关重要,因为效率通常受到阻抗不匹配的限制.
- 现有的TEG系统可能无法最佳地适应变化的环境温度和负载条件.
研究的目的:
- 开发和验证一种方法来增加TEG的功率提取.
- 为了研究串行/并行电路切换对TEG性能的影响.
- 建立适应式TEG的设计方法,以优化功率交付.
主要方法:
- 热电器件电路配置和开关策略的理论分析.
- 在不同的系列/并行配置和环境温度中对TEG输出功率的实验性评估.
- 实现和测试一个TEG系统为无线发射机电路供电.
主要成果:
- 在串行/并行配置之间切换有效地调整TEG的内部阻抗.
- 与固定配置相比,自适应电路配置显著增加了提取的功率.
- 最佳配置因温度差异而异;例如,2系列/1平行在3.0K时产生10%的功率,而1系列/2平行在4.0K时产生23%的功率.
结论:
- 在TEG中动态电路切换是一种可行的策略,可以提高电力提取效率.
- 拟议的方法允许TEG适应不同的热条件和负载要求.
- 这种适应性方法为设计更有效的能量收集系统提供了一条途径.
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