Circuit Development of Piezoelectric Energy Harvesting Device for Recharging Solid-State Batteries

2012 ◽  
Author(s):  
Yuejuan Li ◽  
Marvin H. Cheng ◽  
Ezzat G. Bakhoum
Keyword(s):  
Solid State ◽  
Energy Density ◽  
Energy Harvesting ◽  
Electrical Energy ◽  
Piezoelectric Energy Harvesting ◽  
Power Sources ◽  
Piezoelectric Energy ◽  
Piezoelectric Elements ◽  
Volume Energy ◽  
Solid State Batteries

Piezoelectric devices have been widely used as a means of transforming ambient vibrations into electrical energy that can be stored and used to power other devices. This type of power generation devices can provide a convenient alternative to traditional power sources used to operate certain types of sensors/actuators, MEMS devices, and microprocessor units. However, the amount of energy produced by these devices is in many cases far too small to directly power an electrical device. Therefore, much of the research into power harvesting has focused on methods of accumulating the energy until a sufficient amount is present, allowing the intended electronics to be powered. Due to the tiny amount of harvestable power from a single device, it is critical to collect vibration energy efficiently. Many research groups have developed various methods to operate the harvesting devices at their resonant frequencies for maximal amount of energy. Different techniques of conversion circuits are also investigated for efficient transformation from mechanical vibration to electrical energy. However, efforts have not been made to the analysis of array configuration of energy harvesting elements. Poor combination of piezoelectric elements, such as phase difference, cannot guarantee the increasing amount of harvested energy. To realize a piezoelectric energy-harvesting device with higher volume energy density, the energy conversion efficiencies of different array configurations were investigated. In the present study, various combinations of piezoelectric elements were analyzed to achieve higher volume energy density. A charging circuit for solid-state batteries with planned energy harvesting strategy was also proposed. With the planned harvesting strategy, the required charging time can be estimated. Thus, the applicable applications can be clearly identified. In this paper, optimal combination of piezoelectric cantilevers and different modes of charging methods were investigated. The results provide a means of choosing the piezoelectric device to be used and estimate the amount of time required to recharge a specific capacity solid-state battery.

Energy harvesting from quasi-static deformations via bilaterally constrained strips

2018 ◽  
Vol 29 (18) ◽  
pp. 3572-3581
Author(s):  
Suihan Liu ◽  
Ali Imani Azad ◽  
Rigoberto Burgueño
Keyword(s):  
Energy Harvesting ◽  
Low Power ◽  
Mechanical Energy ◽  
Electrical Power ◽  
Energy Resource ◽  
Electrical Energy ◽  
Piezoelectric Energy Harvesting ◽  
Power Budget ◽  
Piezoelectric Energy ◽  
Static Conditions

Piezoelectric energy harvesting from ambient vibrations is well studied, but harvesting from quasi-static responses is not yet fully explored. The lack of attention is because quasi-static actions are much slower than the resonance frequency of piezoelectric oscillators to achieve optimal outputs; however, they can be a common mechanical energy resource: from large civil structure deformations to biomechanical motions. The recent advances in bio-micro-electro-mechanical systems and wireless sensor technologies are motivating the study of piezoelectric energy harvesting from quasi-static conditions for low-power budget devices. This article presents a new approach of using quasi-static deformations to generate electrical power through an axially compressed bilaterally constrained strip with an attached piezoelectric layer. A theoretical model was developed to predict the strain distribution of the strip’s buckled configuration for calculating the electrical energy generation. Results from an experimental investigation and finite element simulations are in good agreement with the theoretical study. Test results from a prototyped device showed that a peak output power of 1.33 μW/cm2 was generated, which can adequately provide power supply for low-power budget devices. And a parametric study was also conducted to provide design guidance on selecting the dimensions of a device based on the external embedding structure.

scholarly journals Utilization of a magnetic field-driven microscopic motion for piezoelectric energy harvesting

Nanoscale ◽  
2019 ◽  
Vol 11 (43) ◽  
pp. 20527-20533 ◽  
Author(s):  
Sanggon Kim ◽  
Gerardo Ico ◽  
Yaocai Bai ◽  
Steve Yang ◽  
Jung-Ho Lee ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Magnetic Nanoparticles ◽  
Energy Harvesting ◽  
Energy Conversion ◽  
Particle Shape ◽  
Electrical Energy ◽  
Piezoelectric Energy Harvesting ◽  
Dependent Manner ◽  
Piezoelectric Energy

Magneto–mechano–electrical energy conversion in poly(vinylidenefluoride-trifluoroethylene) piezoelectric nanofibers integrated with magnetic nanoparticles in a particle-shape dependent manner.

Topology Optimization of Piezoelectric Energy Harvesting Devices Subjected to Stochastic Excitation

2010 ◽  
Author(s):  
Zheqi Lin ◽  
Hae Chang Gea ◽  
Shutian Liu
Keyword(s):  
Topology Optimization ◽  
Energy Harvesting ◽  
Electrical Energy ◽  
Ambient Vibration ◽  
Piezoelectric Energy Harvesting ◽  
The Past ◽  
Piezoelectric Energy ◽  
Random Responses ◽  
Pseudo Excitation ◽  
Energy Harvesting Devices

Converting ambient vibration energy into electrical energy using piezoelectric energy harvester has attracted much interest in the past decades. In this paper, topology optimization is applied to design the optimal layout of the piezoelectric energy harvesting devices. The objective function is defined as to maximize the energy harvesting performance over a range of ambient vibration frequencies. Pseudo excitation method (PEM) is applied to analyze structural stationary random responses. Sensitivity analysis is derived by the adjoint method. Numerical examples are presented to demonstrate the validity of the proposed approach.

Piezoelectric Energy Harvesting Using a Clamped Circular Plate: Experimental Study

Aerospace ◽  
2003 ◽  
Author(s):  
Sunghwan Kim ◽  
William W. Clark ◽  
Qing-Ming Wang
Keyword(s):  
Energy Harvesting ◽  
Circular Plate ◽  
Energy Generation ◽  
Piezoelectric Energy Harvesting ◽  
Piezoelectric Energy ◽  
Plate Elements ◽  
Poling Direction ◽  
Electrical Devices ◽  
Piezoelectric Elements ◽  
Generation Theory

Energy harvesting using piezoelectric material is not a new concept, but its small generation capability has not been attractive for mass energy generation. For this reason, little research has been done on the topic. Recently, wearable computer concepts, as well as small portable electrical devices, are a few motivations that have reignited the study of piezoelectric energy harvesting. The theory behind cantilever type piezoelectric elements is well known, but the transverse moving circular plate elements, which can be used in pressure type energy generation is not yet fully developed. The power generation in a circular plate depends on several factors. Among them, the poling direction and the stress distribution is important as shown in previous research. Specifically, it has been shown theoretically that grouping electrodes and repoling some of the regrouped segments can lead to optimized energy harvesting in a clamped circular plate structure. This paper provides experimental validation of those results. In this paper, three circular plate piezoelectric energy generators (PEG), one unmodified and two different regrouped unimorph PEGs, were used to support the regrouped PEG energy generation theory. The experimental results of regrouped PEGs will be presented with an eye toward guidelines for design of a useful energy harvesting structure.

Piezoelectric Energy Harvesting for Powering Micro Electromechanical Systems (MEMS)

2015 ◽  
Vol 8 (1) ◽  
Author(s):  
A. Majeed
Keyword(s):  
Energy Harvesting ◽  
Low Power ◽  
Piezoelectric Materials ◽  
Electrical Energy ◽  
Piezoelectric Energy Harvesting ◽  
Wireless Technology ◽  
Power Devices ◽  
Piezoelectric Energy ◽  
Technical Innovations ◽  
Low Power Electronics

Recent advancements in wireless technology and low power electronics such as micro electrome-chanical systems (MEMS), have created a surge of technical innovations in the eld of energy har-vesting. Piezoelectric materials, which operate on vibrations surrounding the system have becomehighly useful in terms of energy harvesting. Piezoelectricity is the ability to transform mechanicalstrain energy, mostly vibrations, to electrical energy, which can be used to power devices. This paperwill focus on energy harvesting by piezoelectricity and how it can be incorporated into various lowpower devices and explain the ability of piezoelectric materials to function as self-charging devicesthat can continuously supply power to a device and will not require any battery for future processes.

An Improved Tunable Piezoelectric Energy Harvesting Structure Based on d33 Mode Coupling

2015 ◽  
Vol 1092-1093 ◽  
pp. 136-140
Author(s):  
Yang Zhao ◽  
Kun Peng Wang ◽  
Ying Tai Li ◽  
Ming Jie Guan
Keyword(s):  
Energy Harvesting ◽  
Theoretical Analysis ◽  
Mode Coupling ◽  
Frequency Variation ◽  
Piezoelectric Energy Harvesting ◽  
Piezoelectric Energy ◽  
Piezoelectric Elements ◽  
Piezoelectric Harvester

This research proposes an improved tunable piezoelectric harvester structure which is constructed by a cantilever base beam and piezoelectric elements working in d33 mode. Our previous work on tunable piezoelectric harvester structure showed a frequency variation ratio of 3.17% with piezoelectric elements working in d31mode coupling. In this work, by changing the working mode of the piezoelectric elements from d31 to d33 mode, the frequency variation ratio was shown to be much higher. Theoretical analysis of the improved structure was investigated and verified with simulations. The results showed that the d33 mode coupling surpasses the d31 mode coupling with a frequency variation ratio of 29.74%.

A Low-order Model for the Design of Piezoelectric Energy Harvesting Devices

2008 ◽  
Vol 20 (5) ◽  
pp. 495-504 ◽  
Author(s):  
Jeffrey L. Kauffman ◽  
George A. Lesieutre
Keyword(s):  
Energy Harvesting ◽  
Design Tool ◽  
Mode Shapes ◽  
Piezoelectric Energy Harvesting ◽  
Coupling Coefficients ◽  
Order Model ◽  
Power Sources ◽  
Piezoelectric Energy ◽  
Energy Harvesting Devices ◽  
Low Order

Piezoelectric energy harvesting devices are an attractive approach to providing remote wireless power sources. They operate by converting available vibration energy and storing it as electrical energy. Currently, most devices rely on mechanical excitation near their resonance frequency, so a low-order model which computes a few indicators of device performance is a critical design tool. Such a model, based on the assumed modes method, develops equations of motion to provide rapid computations of key device parameters, such as the natural frequencies, mode shapes, and electro-mechanical coupling coefficients. The model is validated with a comparison of its predictions and experimental data.

Non-Linear Modeling and Analysis of Composite Helicopter Blade for Piezoelectric Energy Harvesting

2012 ◽  
Author(s):  
Wander G. R. Vieira ◽  
Fred Nitzsche ◽  
Carlos De Marqui
Keyword(s):  
Energy Harvesting ◽  
Electrical Power ◽  
Electrical Energy ◽  
Piezoelectric Energy Harvesting ◽  
Resistive Load ◽  
Linear Modeling ◽  
Modeling And Analysis ◽  
Helicopter Blade ◽  
Piezoelectric Energy ◽  
Non Linear

Converting aeroelastic vibrations into electricity for low-power generation has received growing attention over the past few years. Helicopter blades with embedded piezoelectric elements can provide electrical energy to power small electronic components. In this paper, the non-linear modeling and analysis of an electromechanically coupled cantilevered helicopter blade is presented for piezoelectric energy harvesting. A resistive load is considered in the electrical domain of the problem in order to quantify the electrical power output. The non-linear electromechanical model is derived based on the Variational-Asymptotic Method (VAM). The coupled non-linear rotary system is solved in the time-domain. A generalized-α integration method is used to guarantee numerical stability, adding numerical damping at high frequencies. The electromechanical behavior of the coupled rotating blade is investigated for increasing rotating speeds (stiffening effect).

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