不同连接方式热电能量采集器的发电性能
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摘要
为了研究基于塞贝克效应的热电能量采集器的温差发电性能,实现微电子器件的自供电,通过实验模拟工业场合热壁的方法研究了某一型号热电模块串联、并联和单模块的输出电压等特性。实验结果表明:三种连接方式下热电模块的开路电压均随冷热端温差增大而增大,开路电压与模块冷热端温差成正比关系。三种连接方式下单个模块、双模块并联、双模块串联分别在负载为8Ω、4Ω、17Ω左右时,负载上可获得最大功率。可见针对不同负载选择适宜的热电模块组合方式可以使得能量采集器具有更高的能量利用率。
In order to study the thermoelectric energy generation performance of the thermoelectric energy harvester based on Seebeck effect and realize the self-power supply of microelectronic devices,the characteristics of the output voltage of series,parallel and single modules of a certain type of thermoelectric modules are investigated by simulating the hot wall of industrial applications. The results of the experiment show that the open circuit voltage of the thermoelectric module increases with the increase of the temperature difference between the cold and hot ends,and the open circuit voltage is proportional to the temperature difference between the hot and cold ends of the module. In the three connection modes,the single module,the dual module parallel,and the dual module series can obtain the maximum power on the load when the load is about 8 Ω,4 Ω and 17 Ω. It can be seen that selecting a suitable combination of thermoelectric modules for different loads can make the energy harvester have higher energy utilization rate.
In order to study the thermoelectric energy generation performance of the thermoelectric energy harvester based on Seebeck effect and realize the self-power supply of microelectronic devices,the characteristics of the output voltage of series,parallel and single modules of a certain type of thermoelectric modules are investigated by simulating the hot wall of industrial applications. The results of the experiment show that the open circuit voltage of the thermoelectric module increases with the increase of the temperature difference between the cold and hot ends,and the open circuit voltage is proportional to the temperature difference between the hot and cold ends of the module. In the three connection modes,the single module,the dual module parallel,and the dual module series can obtain the maximum power on the load when the load is about 8 Ω,4 Ω and 17 Ω. It can be seen that selecting a suitable combination of thermoelectric modules for different loads can make the energy harvester have higher energy utilization rate.
引文
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