Energy harvesting potential of tuned inertial mass electromagnetic transducers
Energy harvesting potential of tuned inertial mass electromagnetic transducers
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DOI：
10.1016/j.ymssp.2016.07.048
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发表时间：
2017-02-01
影响因子：
8.4
通讯作者：
Ikago, Kohju
中科院分区：
文献类型：
--
作者：
Asai, Takehiko;Araki, Yoshikazu;Ikago, Kohju
当今社会对发展可再生能源技术的需求一直在增长。作为一种很有前途的可再生能源，利用电磁换能器从结构振动中大规模收集能量最近被提出，并在提高发电能力方面投入了大量的努力。本文介绍了一种可调谐惯性质量电磁换能器（TIMET）的工作原理，该换能器通过调节系统参数来提高系统对振动能量的吸收效率。然后，我们提出了一种新的振动能量收集器，并采用简单的静态导纳（SA）控制律确定了该装置的参数值，以最大限度地从平稳随机扰动中收集能量。为了进一步研究TIMET的能量收集潜力，还应用了文献中提出的性能保证（PG）控制和LQG控制。然后进行了数值模拟研究，并通过与传统电磁换能器的比较，验证了所提出的能量采集器的有效性。(C) 2016 Elsevier Ltd.版权所有。
The demand for developing renewable energy technologies has been growing in today's society. As one of promising renewable energy sources, large-scale energy harvesting from structural vibrations employing electromagnetic transducers has recently been proposed and considerable effort has been devoted to increase the power generation capability. In this paper, we introduce the mechanism of a tuned inertial mass electromagnetic transducer (TIMET), which can absorb vibratory energy more efficiently by tuning the parameters to adjust the system. Then we propose a new vibratory energy harvester with the TIMET and determine the parameter values for the device with a simple static admittance (SA) control law to maximize the energy harvested from a stationary stochastic disturbance. To investigate the energy harvesting potential of the TIMET further, the performance -guaranteed (PG) control and the LQG control proposed in the literature are applied as well. Then the numerical simulation studies are carried out and the effectiveness of the proposed energy harvester is examined by comparing the traditional electromagnetic transducers. (C) 2016 Elsevier Ltd. All rights reserved.