一种用于基于颤振的压电能量采集器的无整流器串联电感同步开关采集（S-SSHI）接口电路

IF 1.6 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Instrumentation & Measurement Magazine Pub Date : 2023-05-01 DOI:10.1109/MIM.2023.10121409

Bingxin Hu, Zhiyuan Li, Hongsheng Liu, Bin Zhang, Shengxi Zhou

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引用次数: 1

摘要

从流动引起的振动中获取能量是近年来的一个热点。在本研究中，基于颤振的压电能量采集器（FPEH）与无自供电整流器的S-SSHI接口电路连接，在极限循环振荡（LCO）状态下工作，以有效地采集风致振动能量。首先，设计了FPEH，并推导了理论模型。在风洞中测试了FPEH的动态响应，结果表明，在风速为7.3m/s时，颤振开始。同时，均方根输出电压随风速的增加而增加，数值模拟和实验也证明了这一点。根据颤振的输出特性，提出了一种自供电优化串联同步开关电感电路（SP-OSSHI），以有效地获取电能。所提出的电路通过改进正负峰值检测开关来减少元件数量和电路尺寸，从而减少了内部能量损失，从而提高了能量收集效率。通过实验验证了该能量采集器的最大输出功率为36μW。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A Self-Powered Rectifier-Less Series-Synchronized Switch Harvesting on Inductor (S-SSHI) Interface Circuit for Flutter-Based Piezoelectric Energy Harvesters

Energy harvesting from flow-induced vibrations has been a hot spot in recent years. In this study, a flutter-based piezoelectric energy harvester (FPEH) connected with a self-powered rectifier-less S-SSHI interface circuit is working at the limit cycle oscillation (LCO) state to efficiently harvest wind-induced vibration energy. First, an FPEH is designed, and the theoretical model is derived. The dynamic response of the FPEH is tested and measured in a wind tunnel, and results show that flutters start at the wind speed of 7.3 m/s. Meanwhile, the root mean square (RMS) output voltage increases with the increase of the wind speed which is also proved by the numerical simulations and the experiment. A self-powered optimized series synchronized switch harvesting on inductor circuit (SP-OSSHI) is proposed to efficiently harvest the electrical energy according to the output characteristic from flutter. The proposed circuit reduces the number of components and the circuit size by improving the positive and negative peak detection switches, which reduces the internal energy loss and thus improves the energy harvesting efficiency. The energy harvester is verified by the experiment, and a maximum output power of 36 μ W is obtained.

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来源期刊

IEEE Instrumentation & Measurement Magazine 工程技术-工程：电子与电气

CiteScore

4.20

自引率

4.80%

发文量

147

审稿时长

>12 weeks

期刊介绍： IEEE Instrumentation & Measurement Magazine is a bimonthly publication. It publishes in February, April, June, August, October, and December of each year. The magazine covers a wide variety of topics in instrumentation, measurement, and systems that measure or instrument equipment or other systems. The magazine has the goal of providing readable introductions and overviews of technology in instrumentation and measurement to a wide engineering audience. It does this through articles, tutorials, columns, and departments. Its goal is to cross disciplines to encourage further research and development in instrumentation and measurement.