Piezoelectric energy harvester converting strain energy into kinetic energy for extremely low frequency operation

Kwon, Daeho; Ko, Hee Jin; Kim, Min Ook; Oh, Yongkeun; Sim, Ji Hoon; Lee, Kyounghoon; Cho, Kyung Ho; Kim, Jongbaeg

doi:10.1063/1.4869130

Cited by 33 publications

(15 citation statements)

References 18 publications

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“…A mechanical crank-piston arrangement and a gear mechanism were used to amplify the displacement for electromagnetic energy harvesting in bridges. A piezoelectric harvester was fabricated by Kwon et al (2014) with double beam for low frequency energy harvesting that extracted 1.6 mW and 3.4 µW at 0.5 Hz and 10 MΩ resistive load. A novel damper cum energy harvesting device was reported by Shen and Zhu (2015) for extracting energy from cable stayed bridge when it was excited by wind.…”

Section: Low Frequency and Low Acceleration Vibration Energy Harvementioning

confidence: 99%

Two degree of freedom vibration based electromagnetic energy harvester for bridge health monitoring system

Ahmad

Khan

2020

Journal of Intelligent Material Systems and Structures

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This paper presents an electromagnetic energy harvester to extract low frequency and low acceleration vibration energy available in a bridge environment. The developed harvester is a multi-mode oscillator with dual electromagnetic transduction mechanisms. The harvester consists of two cantilever beams. The first cantilever beam is split into two equal pieces along its length and the second beam placed in between them coming back to the fixed end and attached at outer end to the first beam. This way instead of a long conventional cantilever beam a compact harvester is fabricated. Two magnets as proof masses are attached to each free end of the beam making it a two degree of freedom system (2-DOF). The magnets are positioned to oscillate inside hand wound coils during operation. An analytical model was developed and COMSOL multiphysics was used to simulate the mode shapes of the harvester. The mathematical model was simulated for open circuit voltage in MATLAB and showed closely matching results with the experimental values. The harvester is characterized in lab for its performance under sinusoidal vibrations at low frequency (3 Hz–15 Hz) and low acceleration (0.01–0.09 g) levels. The 2-DOF harvester has two resonant frequencies of 4.4 Hz and 5.5 Hz and a volume of 333 cm3. It produces maximum voltage of 0.6 V at first resonance on coil-1 and maximum voltage of 1.2 V on coil-2 at second resonance at 0.09 g. At acceleration of 0.09 g the harvester produced 2.51 mW at first resonant frequency and 10.7 mW at second resonance. Moreover, the AC output voltage of the harvester is rectified to DC voltage by a three-stage Cockcroft-Walton multiplier type circuit. The DC power output at 0.05 g was 0.939 mW at first resonance and 0.956 mW at second resonance while maximum voltages of 5.4 V on coil-1 and 4 V on coil-2 were produced.

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Section: Low Frequency and Low Acceleration Vibration Energy Harvementioning

confidence: 99%

Two degree of freedom vibration based electromagnetic energy harvester for bridge health monitoring system

Ahmad

Khan

2020

Journal of Intelligent Material Systems and Structures

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“…Pillatsch et al [17] developed a scalable PEH, in which a cylindrical proof mass driven by human motion was used to actuate an array of piezoelectric bimorph beams through magnetic coupling, and thus realized frequency up-conversion. Kwon et al [18] presented a design to convert the external low-frequency vibrations to the free vibrations of a piezoelectric cantilever beam via the magnetic attraction between the beam and a flexible substrate.…”

Section: Introductionmentioning

confidence: 99%

Design and development of a multipurpose piezoelectric energy harvester

Fan

Chang

Chao

et al. 2015

Energy Conversion and Management

122

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“…The research conducted uses thin‐film piezoelectric cells and they are usually capable of generating a very less power in mW. In another approach, an energy harvester comprising a cantilever attached to piezoelectric patches is proposed [15]. This approach uses the crosswind field to generate 2W power and is possibly achieved when the resonant frequency of the cantilever harvester is close to the vortex shedding frequency.…”

Section: Introductionmentioning

confidence: 99%

Piezoelectric energy harvester converting wind aerodynamic energy into electrical energy for microelectronic application

Sitharthan

Yuvaraj

Padmanabhan

et al. 2021

IET Renewable Power Gen

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Piezoelectric Energy Harvesting Systems play a vital role in energizing microelectronic devices with the low-frequency operation. Here, a novel piezoelectric energy harvesting device has been developed for low power electronic devices. The developed Piezoelectric Energy Harvesting Systems consists of a cantilever with poles projecting outwards and the cantilevers one end is connected to the wind-catcher, and another end is connected to the torsional spring. The developed Piezoelectric Energy Harvesting Systems signifies its application in energizing microelectronic devices. The cantilever is placed inwards to the piezoelectric crystal stack. When the wind strikes, a vortex is created in the windcatcher, which oscillates the cantilever and generates stress in the piezoelectric crystal stack to develop electric energy. The output voltage obtained from the Piezoelectric Energy Harvesting Systems does not affect any input frequency of the piezoelectric crystal. The result obtained shows that the developed Piezoelectric Energy Harvesting Systems generates 120-200 eV with 2.9 × 10 16 -4.84 × 10 16 Hz frequency considering an elementary charge unit as 40 for a variable wind flow of 4-9 m/s. This research aims to develop an efficient wind-based Piezoelectric Energy Harvesting Systems for low powered microelectronic devices.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Piezoelectric energy harvester converting strain energy into kinetic energy for extremely low frequency operation

Abstract: Energy harvesting from ambient low-frequency magnetic field using magneto-mechano-electric composite cantilever Appl. Phys. Lett.

Cited by 33 publications

References 18 publications

Two degree of freedom vibration based electromagnetic energy harvester for bridge health monitoring system

Two degree of freedom vibration based electromagnetic energy harvester for bridge health monitoring system

Design and development of a multipurpose piezoelectric energy harvester

Piezoelectric energy harvester converting wind aerodynamic energy into electrical energy for microelectronic application

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