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PIEZOELECTRIC LEAF GENERATOR FOR WIND ENERGY HARVEST

机译:风力发电用压电叶发生器

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摘要

In this paper, a piezoelectric leaf generator for harvesting wind energy was proposed, fabricated and tested. The leaf generator had a bimorph cantilever structure, with Su-8 as the protective supporting layer, and aligned lead zirconate titanate (PZT) nanofibers as the active layer. Interdigitated electrodes were sputtered on top of the aligned PZT nanofibers to collect the generated charge. After fabrication of the leaf generator, it was tested in a wind tunnel with different wind incident angles and wind speeds. The maximum voltage output of the leaf generator was 820 mV when the wind speed was 17 m/s. The developed leaf generator does not need further bonding to the vibration source, which make it much easier for real applications. In addition, benefited from unique material properties of the PZT nanofiber such as flexible, robust, and high piezoelectric coupling ability, the leaf generator is promising for a high efficiency wind energy harvest.
机译:本文提出,制造和测试了一种用于收集风能的压电叶片发电机。叶片发生器具有双压电晶片悬臂结构,其中Su-8作为保护性支撑层,而对齐的锆酸钛酸铅(PZT)纳米纤维作为活性层。将叉指电极溅射在对准的PZT纳米纤维的顶部,以收集产生的电荷。叶片发电机制造完成后,在风洞中以不同的风入射角和风速对其进行了测试。当风速为17 m / s时,叶片发电机的最大电压输出为820 mV。发达的烟叶发生器不需要与振动源进一步粘接,这使得它在实际应用中更加容易。此外,得益于PZT纳米纤维的独特材料特性,例如柔韧性,坚固性和高压电耦合能力,叶片发生器有望实现高效风能的收集。

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