Enhancement of surge-induced synchronized switch harvesting on inductor strategy
Enhancement of surge-induced synchronized switch harvesting on inductor strategy
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DOI：
10.1088/1361-665x/abfa66
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发表时间：
2021-05
影响因子：
4.1
通讯作者：
J. Onoda;K. Minesugi;Seong-Cheol Kwon;Hyun-Ung Oh
中科院分区：
文献类型：
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作者：
J. Onoda;K. Minesugi;Seong-Cheol Kwon;Hyun-Ung Oh
我们提出并证明了一种新的方法，以提高基于浪涌感应同步开关收获电感器（S3 HI）的振动收获。S3 HI允许通过在同步开关收集电感器（SSHI）的电压反转期间感应浪涌电压来收集大量能量，即使来自低振幅振动。来自常规电压逆变的浪涌电压和电压放大改善了能量收集。S3 HI通过在不增加元件的情况下重新布线电路和使用新颖的电压反转开关模式来修改SSHI，从而保持SSHI的简单性。我们提出了一种新的开关策略和电路拓扑结构，并分析了六种方法，构成S3 HI家庭，其中包括传统的S3 HI和高频S3 HI。我们证明了这六种方法即使从低振幅振动中也能适当地收获能量。然而，每个振动周期的可收获能量取决于开关模式和存储电容器电压。所提出的开关策略的使用，它允许能量收集之前的能量耗散的电压逆变，大大增加了每个振动周期的可收获的能量。在本研究中考虑的典型情况下，与传统和现有的高频S3 HI方法相比，所述增加分别为11%-31%和15%-450%，这取决于存储电容器电压。此外，所提出的电路可以用作传统电路。它可以被认为是一个有前途的替代S3 HI方法，由于其潜在的自动重启能力，这是没有发现在传统的S3 HI电路。
We propose and demonstrate a novel method to enhance vibration harvesting based on surge-induced synchronized switch harvesting on inductor (S3HI). S3HI allows harvesting of a large amount of energy even from low-amplitude vibrations by inducing a surge voltage during the voltage inversion of a synchronized switch harvesting on inductor (SSHI). The surge voltage and the voltage amplification from the conventional voltage inversion improve energy harvesting. S3HI modifies SSHI by both rewiring the circuit without adding components and using a novel switching pattern for voltage inversion, thus maintaining the simplicity of SSHI. We propose a novel switching strategy and circuit topology and analyze six methods that constitute the S3HI family, which includes traditional S3HI and high-frequency S3HI. We demonstrate that the six methods suitably harvest energy even from low-amplitude vibrations. Nevertheless, the harvestable energy per vibration cycle depends on the switching pattern and storage-capacitor voltage. The use of the proposed switching strategy, which allows energy harvesting before energy-dissipative voltage inversion, substantially increases the harvestable energy per vibration cycle. In the typical case considered in this study, the said increase is on the order of 11%–31% and 15%–450% compared to the traditional and existing high-frequency S3HI methods, respectively, depending on the storage-capacitor voltage. Additionally, the proposed circuit can be used as a traditional circuit. It could be considered a promising alternative to S3HI methods owing to its potential auto-reboot capability, which is not found in traditional S3HI circuit.