基于风致振动效应的微型风能收集器研究现状

A review on micro wind energy harvesters based wind induced vibration

在环境能量收集技术领域,基于风致振动效应的微型风能收集器已成为一个研究热点,对其研究现状和发展趋势进行了总结与分析。分别讨论了风到振动、振动到电能的能量转换过程,重点对基于涡激振动、颤振、驰振、共振腔的微型风能收集器的基本理论和典型结构进行了分析。结果发现,目前微型风能收集器的机电转换方式以压电效应为主,风致振动方式以颤振和驰振为主要发展趋势。

In the field of environmental energy harvesting, it has become a hot topic on the micro wind energy harvester based on wind induced vibration. The present situation and development trends about the wind harvesters were reviewed in this paper. Two processes of energy conversion, wind flow to vibration and vibration to electricity, were discussed. The fundamental theory and typical structures of the micro wind energy harvester were mainly analyzed based on vortex-induced-vibration, flutter, galloping and resonant cavity. It is found that the piezoelectric effect is the main mode for electromechanical conversion, and the flutter and galloping are the main trend for wind-induced vibration.