scholarly journals Modeling and Characterization of a Kinetic Energy Harvesting Device Based on Galfenol

Materials ◽  
2019 ◽  
Vol 12 (19) ◽  
pp. 3199 ◽  
Author(s):  
Carmine Stefano Clemente ◽  
Daniele Davino
Keyword(s):  
Energy Harvesting ◽  
Permanent Magnets ◽  
Electronic Devices ◽  
Power Electronic ◽  
Electrical Load ◽  
Circuit Simulator ◽  
Force Profile ◽  
Conversion Performance ◽  
Electrical Connections

The proposal of Energy Harvesting (EH) techniques and devices has experienced a significant growth over the last years, because of the spread of low power electronic devices. Small ambient energy quantities can be recovered through EH and exploited to power Wireless Sensor Networks (WSN) used, for example, for the Structural Health Monitoring (SHM) of bridges or viaducts. For this purpose, research on EH devices based on magnetostrictive materials has significantly grown in the last years. However, these devices comprise different parts, such as a mechanical system, magnetic circuit and electrical connections, which are coupled together. Then, a method able to reproduce the performance may be a handy tool. This paper presents a nonlinear equivalent circuit of a harvester, based on multiple rods of Galfenol, which can be solved with standard circuit simulator. The circuital parameters are identified with measurements both on one rod and on the whole device. The validation of the circuit and the analysis of the power conversion performance of the device have been conducted with different working conditions (force profile, typology of permanent magnets, resistive electrical load).

Multiphysics circuit of a magnetostrictive energy harvesting device

2017 ◽  
Vol 28 (17) ◽  
pp. 2317-2330 ◽  
Author(s):  
Carmine S Clemente ◽  
Abdelmomen Mahgoub ◽  
Daniele Davino ◽  
Ciro Visone
Keyword(s):  
Energy Harvesting ◽  
Equivalent Circuit ◽  
Permanent Magnets ◽  
Nonlinear Functions ◽  
Circuit Simulator ◽  
The Subject ◽  
Full Coupling ◽  
Resistive Loads ◽  
Energy Harvesting Devices ◽  
Physical Quantities

Kinetic energy harvesting devices based on magnetostrictive materials are composed of several parts, for dealing with multiphysics, including mechanical, magnetic, and electric quantities. An effective method to simulate the effects of different working conditions is important to fully exploit such devices. The aim of this paper is to present an equivalent circuit that can be identified with standard measurements on the device and simulated with a standard circuit simulator, such as Spice. The circuit is a nonlinear three-port circuit, related to the mechanical, magnetic, and electrical parts of the device. Unlike many of the published papers on the subject, the magneto-mechanical modeling is quite realistic and exploits nonlinear functions and the full coupling among the involved physical quantities of the employed magnetostrictive material. The nonlinear equivalent circuit is preliminarily validated on a concept device with permanent magnets biasing on a Stress Annealed Galfenol rod. Experimental data with different resistive loads and magnetic biasing are considered and compared with simulation outputs, in terms of the RMS voltage and harvested power.

Nano-Analytical and Electrical Characterization of 4H-SiC MOSFETs

2012 ◽  
Vol 711 ◽  
pp. 134-138 ◽  
Author(s):  
Ana Maria Beltran ◽  
Sylvie Schamm-Chardon ◽  
Vincent Mortet ◽  
Mathieu Lefebvre ◽  
Elena Bedel-Pereira ◽  
...  
Keyword(s):  
Electron Mobility ◽  
Electronic Devices ◽  
Chemical Properties ◽  
Electrical Characterization ◽  
Power Electronic ◽  
Layer Formation ◽  
Transmission Electron ◽  
P Type ◽  
And Chemical Properties

4H-SiC presents great advantages for its use in power electronic devices working at particular conditions. However the development of MOSFETs based on this material is limited by mobility degradation. N-channel SiC MOSFETs were manufactured on p-type epitaxial and p-implanted substrates and the electron mobility in the inversion channels was measured to be correlated with their structural and chemical properties determined by transmission electron microscopy methods. With regard to what was previously discussed in the literature, transition layer formation and carbon distribution across the SiC-SiO2interface are considered in relation with the measured low electron mobility of the MOSFETS.

X-ray Topography Characterization of GaN Substrates Used for Power Electronic Devices

2021 ◽  
Author(s):  
Yafei Liu ◽  
Hongyu Peng ◽  
Tuerxun Ailihumaer ◽  
Balaji Raghothamachar ◽  
Michael Dudley
Keyword(s):  
Electronic Devices ◽  
Power Electronic ◽  
X Ray

Discussion of “On the Role of Nonlinearities in Vibratory Energy Harvesting: A Critical Review and Discussion” (Daqaq, M., Masana, R., Erturk, A., and Quinn, D. D., 2014, ASME Appl. Mech. Rev., 66(4), p. 040801)

2014 ◽  
Vol 66 (4) ◽  
Author(s):  
B. P. Mann
Keyword(s):  
Energy Harvesting ◽  
Low Power ◽  
Critical Review ◽  
New Technologies ◽  
Electronic Devices ◽  
Power Source ◽  
Power Electronic ◽  
Motivating Factors ◽  
Vibratory Energy Harvesting

The authors have written a nice review on the purposeful use of nonlinearity in vibratory energy harvesting. The current limitations of batteries and advancements in low-power electronic devices are identified as two motivating factors for energy harvesting research. The underlying idea is that vibratory harvesters could replace batteries as a power source or even could enable new technologies. The authors identify the primary limitations associated with linear vibratory harvesters and describe several attempts, along with some of their pitfalls, to overcome these limitations. The article then provides a critical review of recent research focused on the use of nonlinearity to improve the performance of vibratory harvesters.

Electromechanical Piezoelectric Based Energy Harvesting System

2018 ◽  
Vol 24 (8) ◽  
pp. 6030-6033
Author(s):  
Garima Thakur ◽  
V Velmurugan
Keyword(s):  
Energy Harvesting ◽  
Lead Zirconate Titanate ◽  
Electronic Devices ◽  
Lead Zirconate ◽  
Power Electronic ◽  
Low Frequencies ◽  
Piezoelectric Cantilever ◽  
Feasible Alternative ◽  
Energy Harvesting System ◽  
Piezoelectric Vibration

Energy harvesting is a very attractive method in all the applications where battery replacement or recharging is difficult. We can harvest energy using environmental vibrations caused because of frequencies that are present naturally in our environment. Vibration energy can scavenge energy from mechanical vibrations to energies low power electronic devices. Low frequencies energy harvesting system can begin to replace batteries in certain wearable devices. As piezoelectric vibration based energy harvester and do not require external voltage and also they are not expensive making them feasible alternative to implement energy harvesting. In this paper we are investigating a bimorph piezoelectric cantilever geometry by using COMSOL Multiphysics 5.2. Material used is Lead Zirconate Titanate (PZT 5A), and stainless steel.

scholarly journals Piezoelectric on Natural Fiber Reinforced Epoxy Composite for Wireless Energy Harvesting

2020 ◽  
Vol 2 (2) ◽  
pp. 20
Keyword(s):  
Energy Harvesting ◽  
Natural Fiber ◽  
Epoxy Composite ◽  
Electronic Devices ◽  
Experimental Tests ◽  
Electrical Energy ◽  
Power Electronic ◽  
Self Powered ◽  
Impedance Sensor ◽  
Wireless Energy Harvesting

Energy harvesting have a variety of application areas such as aircraft,automotive, medical this energy provides a route for the realization of autonomous and self-powered low power electronic devices, for wireless sensor networks, it eliminates the need for wireless or replacement batteries. The purpose of this paper is to develop and improve the capacity of energy harvesting. In this study, an MFC harvesting elements were laid up with the Natural fiber/epoxy composites that will be fabricated prapag at the fabrication stage, and co-within an autoclave that can convert mechanical vibrations to electrical energy will study to supply power a wireless impedance sensor node. Finally, a series of experimental tests will be verified.

Growth, morphological and structural characterization of silicon carbide epilayers for power electronic devices applications

2005 ◽  
Vol 40 (10-11) ◽  
pp. 964-966
Author(s):  
C. F. Pirri ◽  
S. Porro ◽  
S. Ferrero ◽  
E. Celasco ◽  
S. Guastella ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Structural Characterization ◽  
Electronic Devices ◽  
Power Electronic
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