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A dual piezoelectric energy harvester with contact and non-contact driven by inertial wheel

机译：双压电能量收割机，惯性轮驱动的接触和非接触

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摘要

In this paper, a dual piezoelectric energy harvester with contact and non-contact driven by inertial wheel is designed to explore relationship between the mass of inertia wheel and the generator performance. This harvester consists of rectangular and circular lead zir-conate titanate (PZT) plates, magnet and other support structure. The model is simplified and analyzed. The supporting structure of the energy harvester is manufactured by 3D printing technology, and the standard parts such as bolts are assembled. The test system is built and the prototype is tested under different rotation speed (from 100 to 1300 r/min) and inertia wheel mass (227, 287, 348 and 407 g). This study has shown that under constant driving conditions (1000 r/min), the optimal peak-to-peak voltage and root-mean-square power are 36.07 V, 5.31 V and 5.47mW, 0.05mW across the 5kΩ resistor. Moreover, the optimal root-mean-square voltage and power are 4.87 V, 613.01 mV and 1.15mW, 21.04 uW across the 10kΩ driven through an inertial wheel. Moreover, the energy conversion efficiency of the energy harvester is 18.27% driven at the inertial wheel of 407 g. Therefore, this energy harvester can be used to collect the energy stored during the idling of the inertia wheel to supply sensor.
机译：本文采用惯性轮驱动的具有接触和非接触的双压电能量收割机，旨在探讨惯性轮的质量与发电机性能之间的关系。该收割机由矩形和圆形锆锆钛酸盐（PZT）板，磁铁等支撑结构组成。该模型被简化和分析。通过3D打印技术制造能量收割机的支撑结构，组装螺栓等标准部件。构建测试系统，在不同的转速（100至1300 r / min）和惯性轮质量（227,287,348和407g）下测试原型。本研究表明，在恒定的驾驶条件下（1000 r / min），最佳的峰值 - 峰值电压和根均方功率为36.07 V，5.31 V和5.47mW，在5KΩ电阻上横跨0.05MW。此外，通过惯性轮驱动的10kΩ，最佳的根平均方形电压和功率为4.87V，613.01 mV和1.15mW，21.04 UW。此外，在407g的惯性轮上驱动的能量收割机的能量转换效率为18.27％。因此，这种能量收割机可用于收集在惯性轮的怠速期间存储的能量以供应传感器。

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