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首页> 外文期刊>IEEE sensors journal >Design and Testing of a Kinetic Energy Harvester Embedded Into an Oceanic Drifter
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Design and Testing of a Kinetic Energy Harvester Embedded Into an Oceanic Drifter

机译：嵌入海洋漂移中的动能收割机的设计与测试

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摘要

A novel Kinetic Energy Harvester (KEH) has been developed for powering oceanic undrogued drifters. It consists on a double pendulum system capable of transforming the wave oscillations into rotation on a flywheel. This rotation is converted into DC current by an electrical generator and further processed by a power management unit (PMU). The PMU includes a "maximum power point tracking" system to maximize energy production by the generator. An oceanic drifter has also been designed to embed the KEH and a custom-made measurement system to perform real sea tests. It counts on an Inertial Measurement Unit to study the motion of the drifter and an embedded measurement system to estimate the rotation speed of the generator and the power at both the input and output of the PMU. A Wi-Fi connection is also included for data transfer at short distances. The generator was firstly characterized at the laboratory; the drifter was then placed on a linear shaker to assess its performance. Finally, the drifter was deployed in a controlled sea area with average values of wave height and frequency of 1.43 m and 0.29 Hz, respectively. In these conditions, the drifter showed horizontal and vertical oscillations with peak-to-peak accelerations of 0.8 g and power spectra centered around 1.5 Hz and 1 Hz, respectively. As a result, the KEH generated a mean output power of 0.18 mW, with peaks of 2.5 mW.
机译：新颖的动能收割机（KEH）已开发用于通电海洋undrogued漂移。它包括一种能够将波浪振荡变换为飞轮上的波形振荡的双摆系统。该旋转由发电机转换成DC电流，并通过电力管理单元（PMU）进一步处理。 PMU包括“最大功率点跟踪”系统，以最大化发电机的能量产生。海洋漂移也旨在嵌入KEH和定制的测量系统来执行真正的海洋测试。它对惯性测量单元进行研究，以研究漂移的漂移和嵌入式测量系统的运动，以估计发电机的旋转速度和PMU的输入和输出的功率。还包括Wi-Fi连接，用于在短距离下进行数据传输。发电机首先在实验室的特征;然后将漂移置于线性振动器上以评估其性能。最后，将漂移分别部署在受控海域中，平均波浪高度和1.43米和0.29Hz的频率。在这些条件下，漂移分别显示出水平和垂直振荡，其峰值与峰值加速度为0.8g，功率谱分别以1.5Hz和1Hz为中心。结果，KEH产生了0.18兆瓦的平均输出功率，峰值为2.5兆瓦。

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