32.3 Electromagnetic Mechanical Energy-Harvester IC with No Off-Chip Component and One Switching Period MPPT Achieving up to 95.9% End-to-End Efficiency and 460% Energy-Extraction Gain

2020 ◽  
Author(s):  
Anthony Quelen ◽  
Gael Pillonnet ◽  
Pierre Gasnier ◽  
Francois Rummens ◽  
Sebastien Boisseau
Keyword(s):  
Energy Harvester ◽  
Mechanical Energy ◽  
Energy Extraction ◽  
End To End

Optimization of spiral-shaped piezoelectric energy harvester using Taguchi method

2017 ◽  
Vol 24 (19) ◽  
pp. 4484-4491 ◽  
Author(s):  
R Tikani ◽  
L Torfenezhad ◽  
M Mousavi ◽  
S Ziaei-Rad
Keyword(s):  
Taguchi Method ◽  
Energy Harvester ◽  
Piezoelectric Materials ◽  
Mechanical Energy ◽  
Experimental Investigations ◽  
Optimum Level ◽  
Low Frequencies ◽  
Piezoelectric Energy ◽  
Resonance Frequencies ◽  
Design Values

Nowadays, environmental energy resources, especially mechanical vibrations, have attracted the attention of researchers to provide energy for low-power electronic circuits. A common method for environmental mechanical energy harvesting involves using piezoelectric materials. In this study, a spiral multimode piezoelectric energy harvester was designed and fabricated. To achieve wide bandwidth in low frequencies (below 15 Hz), the first three resonance frequencies of the beam were designed to be close to each other. To do this, the five lengths of the substrate layer were optimized by the Taguchi method, using an L27 orthogonal array. Each experiment of the Taguchi method was then simulated in ANSYS software. Next, the optimum level of each design variable was obtained. A test rig was then constructed based on the optimum design values and some experimental investigations were conducted. A good correlation was observed between measured and the finite element results.

scholarly journals Determination of Potential Tidal Power Sites at East Malaysia

2020 ◽  
Vol 10 (4) ◽  
pp. 6047-6051 ◽  
Author(s):  
K. A. Samo ◽  
I. A. Samo ◽  
Z. A. Siyal ◽  
A. R. H. Rigit
Keyword(s):  
Renewable Energy ◽  
Potential Energy ◽  
Energy Harvester ◽  
Tidal Range ◽  
Energy Extraction ◽  
Tidal Power ◽  
Maximum Capacity ◽  
Power Extraction ◽  
East Malaysia

Tidal range energy is one of the most predictable and reliable sources of renewable energy. This study’s main aim is to determine potential sites for tidal range power in East Malaysia, by analyzing tidal range distributions and resources and the feasibility of constructing barrages. Investigation was conducted in 34 sites, estimating their potential energy outputs and studying their areas for constructing barrages. Only 18 sites were marked as appropriate for constructing a tidal range energy extraction barrage. The highest potential power was found in Tanjung Manis, and its maximum capacity was calculated as 50.7kW. The second highest potential of tidal power extraction was found in Kuching Barrage at Pending, where an energy harvester could produce electric power up to 33.1kW.

scholarly journals Splitting of neutral mechanical plane of conformal, multilayer piezoelectric mechanical energy harvester

2015 ◽  
Vol 107 (4) ◽  
pp. 041905 ◽  
Author(s):  
Yewang Su ◽  
Shuang Li ◽  
Rui Li ◽  
Canan Dagdeviren
Keyword(s):  
Energy Harvester ◽  
Mechanical Energy

A Flexible Composite Mechanical Energy Harvester from a Ferroelectric Organoamino Phosphonium Salt

2018 ◽  
Vol 130 (29) ◽  
pp. 9192-9196 ◽  
Author(s):  
Thangavel Vijayakanth ◽  
Anant Kumar Srivastava ◽  
Farsa Ram ◽  
Priyangi Kulkarni ◽  
Kadhiravan Shanmuganathan ◽  
...  
Keyword(s):  
Energy Harvester ◽  
Phosphonium Salt ◽  
Mechanical Energy

Modeling and optimization of a wide-band piezoelectric energy harvester for smart building structures

2020 ◽  
Vol 11 (02) ◽  
pp. 2050009
Author(s):  
Prateek Asthana ◽  
Gargi Khanna
Keyword(s):  
Resonant Frequency ◽  
Energy Harvester ◽  
Proof Mass ◽  
Mechanical Energy ◽  
Wide Band ◽  
Electrical Energy ◽  
Sensor Nodes ◽  
Ambient Vibrations ◽  
Band Energy ◽  
Piezoelectric Energy

Piezoelectric energy harvesting refers to conversion of mechanical energy into usable electrical energy. In the modern connected world, wireless sensor nodes are scattered around the environment. These nodes are powered by batteries. Batteries require regular replacement, hence energy harvesters providing continuous autonomous power are used to power these sensor nodes. This work provides two different fixation modes for the resonant frequency for the two modes. Variation in geometric parameter and their effect on resonant frequency and output power have been analyzed. These harvesters capture a wide-band of ambient vibrations and convert them into usable electrical energy. To capture random ambient vibrations, the harvester used is a wide-band energy harvester based on conventional seesaw mechanism. The proposed structure operates on first two resonant frequencies in comparison to the conventional cantilever system working on first resonant frequency. Resonance frequency, as well as response to a varying input vibration frequency, is carried out, showing better performance of seesaw cantilever design. In this work, modeling of wide-band energy harvester with proof mass is being performed. Position of proof mass plays a key role in determining the resonant frequency of the harvester. Placing the proof mass near or away from fixed end results in increase and decrease in stress on the piezoelectric layer. Hence, to avoid the breaking of cantilever, the position of proof mass has been analyzed.

An Equivalent Circuit Model and Energy Extraction Technique of a Magnetostrictive Energy Harvester

2016 ◽  
Vol 26 (4) ◽  
pp. 1-6 ◽  
Author(s):  
Shuying Cao ◽  
Song Yang ◽  
Jiaju Zheng ◽  
Luyu Zhang ◽  
Bowen Wang
Keyword(s):  
Equivalent Circuit ◽  
Energy Harvester ◽  
Equivalent Circuit Model ◽  
Circuit Model ◽  
Extraction Technique ◽  
Energy Extraction

Mechanical Energy Harvester With Ultralow Threshold Rectification Based on SSHI Nonlinear Technique

2009 ◽  
Vol 56 (4) ◽  
pp. 1048-1056 ◽  
Author(s):  
L. Garbuio ◽  
M. Lallart ◽  
D. Guyomar ◽  
C. Richard ◽  
D. Audigier
Keyword(s):  
Energy Harvester ◽  
Mechanical Energy ◽  
Nonlinear Technique

Multiple Resonances Piezoelectric Energy Harvesting Generator

2009 ◽  
Author(s):  
Shaofan Qi ◽  
Roger Shuttleworth ◽  
S. Olutunde Oyadiji
Keyword(s):  
Energy Harvesting ◽  
Energy Harvester ◽  
Mechanical Energy ◽  
Electrical Energy ◽  
Limited Bandwidth ◽  
Piezo Element ◽  
Piezoelectric Energy ◽  
Wide Range ◽  
Environmental Vibration ◽  
Design And Testing

Energy harvesting is the process of converting low level ambient energy into usable electrical energy, so that remote electronic instruments can be powered without the need for batteries or other supplies. Piezoelectric material has the ability to convert mechanical energy into electrical energy, and cantilever type harvesters using this material are being intensely investigated. The typical single cantilever energy harvester design has a limited bandwidth, and is restricted in ability for converting environmental vibration occurring over a wide range of frequencies. A multiple cantilever piezoelectric generator that works over a range of frequencies, yet has only one Piezo element, is being investigated. The design and testing of this novel harvester is described.

scholarly journals Strategies for Wideband Mechanical Energy Harvester

10.5772/51898 ◽  
2012 ◽  
Author(s):  
B. Ahmed ◽  
G. Despesse ◽  
S. Boisseau ◽  
E. Defay
Keyword(s):  
Energy Harvester ◽  
Mechanical Energy

scholarly journals A Two-stage Energy Extraction Circuit for Energy Harvesting in Non-Sinusoidal Excited Environments

Proceedings ◽  
2018 ◽  
Vol 2 (13) ◽  
pp. 700 ◽  
Author(s):  
Philipp Dorsch ◽  
Toni Bartsch ◽  
Florian Hubert ◽  
Heinrich Milosiu ◽  
Stefan J. Rupitsch
Keyword(s):  
Energy Harvester ◽  
Extraction Efficiency ◽  
Tracking System ◽  
Electrical Energy ◽  
Use Case ◽  
Energy Extraction ◽  
Two Stage ◽  
Asset Tracking ◽  
Piezoelectric Energy ◽  
Radio Signals

We present a two-stage energy extraction circuit for a piezoelectric energy harvester, powering an asset-tracking system. Exploiting non-sinusoidal accelerations generated by many logistic transport devices, e.g., pushcarts, forklifts, assembly belts or cars, we are able to harvest sufficient electrical energy to transmit radio signals, which will allow to track the object when it is moving. By using the proposed energy extraction circuit, the energy extraction efficiency could be improved by at least 30% compared to a single-stage solution for sinusoidal excitations. In the practical use-case, the two-stage energy extraction network performs more than four times better compared to the single staged on.

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