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From ambient vibrations to green energy source: MEMS piezoelectric energy harvester for low frequency application

机译:从环境振动到绿色能源:适用于低频应用的MEMS压电能量收集器

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Using piezoelectric materials to harvest the ambient vibrations that surround a system is one method that has seen a dramatic rise in the power-harvesting applications. The simplicity associated with piezoelectric micro-generators makes them very attractive for MEMS applications in which ambient vibrations are harvested and converted into electric energy. These micro generators can become an alternative to the battery-based solutions in the future, especially for remote systems. In this paper, we proposed a model and presented the simulation of a MEMS-based arrayed energy harvester under ambient vibration excitation using the Coventorware approach. This arrayed cantilever-based MEMS energy harvester that operates under ambient excitation of frequency band of 67 to 70 Hz, within a base acceleration of 0.2 to 1.3 g produces an output power of 6.8 μw and 0.4 volts at 20.1 k-ohms load.
机译:使用压电材料来收集系统周围的环境振动是一种在功率收集应用中得到了显着提高的方法。压电微型发电机的简单性使其对于MEMS应用非常有吸引力,在MEMS应用中,环境振动被收集并转化为电能。这些微型发电机将来可能会成为基于电池的解决方案的替代产品,尤其是对于远程系统而言。在本文中,我们提出了一个模型,并提出了使用Coventorware方法在环境振动激励下基于MEMS的阵列式能量采集器的仿真。这种基于悬臂的阵列MEMS能量采集器在67至70 Hz频带的环境激励下工作,在0.2至1.3 g的基本加速度内,在20.1 k欧姆的负载下产生6.8μw和0.4伏的输出功率。

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