Active Piezoelectric Energy Harvesting: General Principle and Experimental Demonstration

2008 ◽  
Vol 20 (5) ◽  
pp. 575-585 ◽  
Author(s):  
Yiming Liu ◽  
Geng Tian ◽  
Yong Wang ◽  
Junhong Lin ◽  
Qiming Zhang ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Boundary Conditions ◽  
Energy Conversion ◽  
Mechanical Energy ◽  
Impedance Matching ◽  
Energy Conversion Efficiency ◽  
Limiting Factors ◽  
Piezoelectric Energy Harvesting ◽  
Piezoelectric Device ◽  
Piezoelectric Energy

In piezoelectric energy harvesting systems, the energy harvesting circuit is the interface between a piezoelectric device and an electrical load. A conventional view of this interface is based on impedance matching concepts. In fact, an energy harvesting circuit can also apply electrical boundary conditions, such as voltage and charge, to the piezoelectric device for each energy conversion cycle. An optimized electrical boundary condition can therefore increase the mechanical energy flow into the device and the energy conversion efficiency of the device. We present a study of active energy harvesting, a type of energy harvesting approach which uses switch-mode power electronics to control the voltage and/or charge on a piezoelectric device relative to the mechanical input for optimized energy conversion. Under quasi-static assumptions, a model based on the electromechanical boundary conditions is established. Some practical limiting factors of active energy harvesting, due to device limitations and the efficiency of the power electronic circuitry, are discussed. In the experimental part of the article, active energy harvesting is demonstrated with a multilayer PVDF polymer device. In these experiments, the active energy harvesting approach increased the harvested energy by a factor of five for the same mechanical displacement compared to an optimized diode rectifier-based circuit.

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.

Mechanistic Modeling and Economic Analysis of Piezoelectric Energy Harvesting Potential in Airport Pavements

2020 ◽  
Vol 2674 (11) ◽  
pp. 64-75
Author(s):  
Jingnan Zhao ◽  
Hao Wang
Keyword(s):  
Energy Harvesting ◽  
Economic Analysis ◽  
Power Output ◽  
Piezoelectric Materials ◽  
Mechanical Energy ◽  
Mechanistic Modeling ◽  
Piezoelectric Energy Harvesting ◽  
Levelized Cost Of Electricity ◽  
Near Surface ◽  
Piezoelectric Energy

This study investigated the feasibility of applying piezoelectric energy harvesting technology in airfield pavements through mechanistic modeling and economic analysis. The energy harvesting performance of piezoelectric transducers was evaluated based on mechanical energy induced by multi-wheel aircraft loading on flexible airfield pavements. A three-dimensional finite element model was used to estimate the stress pulse and magnitude under moving aircraft tire loading. A stack piezoelectric transducer design was used to estimate the power output of a piezoelectric harvester embedded at different locations and depths in the pavement. The aircraft load and speed were found to be vital factors affecting the power output, along with the installation depth and horizontal locations of the energy harvester. On the other hand, the installation of the energy module had a negligible influence on the horizontal tensile strains at the bottom of the asphalt layer and compressive strains on the top of the subgrade. However, the near-surface pavement strains increased when the edge ribs of the tire were loaded on the energy module. Feasibility analysis results showed that the calculated levelized cost of electricity was high in general, although it varies depending on the airport traffic levels and the service life of the energy module. With the development of piezoelectric materials and technology, further evaluation of energy harvesting applications at airports needs to be conducted.

scholarly journals Air cavity-based vibrational piezoelectric energy harvesters

2021 ◽  
pp. 39-45
Author(s):  
A. A. Mohamad Yusoff ◽  
K. A. Ahmad ◽  
S. N. Sulaiman ◽  
Z. Hussain ◽  
N. Abdullah
Keyword(s):  
Energy Harvesting ◽  
Energy Conversion ◽  
Vibrational Energy ◽  
Mechanical Energy ◽  
Circuit Board ◽  
Sensing Element ◽  
Air Cavity ◽  
Load Pressure ◽  
Piezoelectric Energy ◽  
Design Structure

Introduction. Known vibrational energy harvesting methods use a source of vibration to harvest electric energy. Piezoelectric material works as a sensing element converted mechanical energy (vibration) to electrical energy (electric field). The existing piezoelectric energy harvesting (PEHs) devices have low sensitivity, low energy conversion, and low bandwidth. The novelty of the proposed work consists of the design of PEH’s structure. Air cavity was implemented in the design where it is located under the sensing membrane to improve sensitivity. Another novelty is also consisting in the design structure where the flexural membrane was located at the top of electrodes. The third novelty is a new design structure of printed circuit board (PCB). The purpose of improvised design is to increase the stress in between the edges of PEH and increase energy conversion. With the new structure of PCB, it will work as a substrate that absorbs surrounding vibration energy and transfers it to sensing element. Methods. Three techniques were successfully designed in PEH and fabricated namely PEH A, PEH B, and PEH C were characterized by two experiments: load and vibration. The load experiment measured load pressure towards the PEH, whereas the vibration experiment measured stress towards the PEH. Results. PEH C has the highest induced voltage for a weight of 5.2 kg at the frequency of 50 Hz and the highest stored voltage for a period of 4 min. The three techniques applied in PEHs were showed improvement in transducer sensitivity and energy conversion. Practical value. A piezoelectric acoustic generator was used in the experiment to compare the performance of the designed PEH with available piezoelectric transducers in the market. The new flexible membrane worked as a sensing element was worked as a cantilever beam. PVDF was used as a sensing element due to the flexibility of the polymer material, which is expected to improve sensitivity and operating bandwidth.

Piezoelectric Energy Harvesting From Roadways Based on Pavement Compatible Package

2019 ◽  
Vol 86 (9) ◽  
Author(s):  
He Zhang ◽  
Kangxu Huang ◽  
Zhicheng Zhang ◽  
Tao Xiang ◽  
Liwei Quan
Keyword(s):  
Energy Harvesting ◽  
Output Power ◽  
Mechanical Energy ◽  
Scaling Law ◽  
Piezoelectric Energy Harvesting ◽  
Resistive Load ◽  
Piezoelectric Energy ◽  
Simple Scaling ◽  
Energy Harvesting System ◽  
Combined Parameters

Scavenging mechanical energy from the deformation of roadways using piezoelectric energy transformers has been intensively explored and exhibits a promising potential for engineering applications. We propose here a new packaging method that exploits MC nylon and epoxy resin as the main protective materials for the piezoelectric energy harvesting (PEH) device. Wheel tracking tests are performed, and an electromechanical model is developed to double evaluate the efficiency of the PEH device. Results indicate that reducing the embedded depth of the piezoelectric chips may enhance the output power of the PEH device. A simple scaling law is established to show that the normalized output power of the energy harvesting system relies on two combined parameters, i.e., the normalized electrical resistive load and normalized embedded depth. It suggests that the output power of the system may be maximized by properly selecting the geometrical, material, and circuit parameters in a combined manner. This strategy might also provide a useful guideline for optimization of piezoelectric energy harvesting system in practical roadway applications.

scholarly journals Study of a Low-Power-Consumption Piezoelectric Energy Harvesting Circuit Based on Synchronized Switching Technology

Energies ◽  
2019 ◽  
Vol 12 (16) ◽  
pp. 3166
Author(s):  
Jianfeng Hong ◽  
Fu Chen ◽  
Ming He ◽  
Sheng Wang ◽  
Wenxiang Chen ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Theoretical Analysis ◽  
Power Consumption ◽  
Low Power ◽  
Impedance Matching ◽  
Maximum Energy ◽  
Low Power Consumption ◽  
Piezoelectric Energy Harvesting ◽  
Interface Circuit ◽  
Piezoelectric Energy

This paper presents a study of a piezoelectric energy harvesting circuit based on low-power-consumption synchronized switch technology. The proposed circuit includes a parallel synchronized switch harvesting on inductor interface circuit (P-SSHI) and a step-down DC-DC converter. The synchronized switch technology is applied to increase the conversion efficiency of the circuit. The DC-DC converter is used to accomplish the impedance matching for different loads. A low-power-consumption microcontroller and discrete components are used to build the P-SSHI interface circuit. The study starts with theoretical analysis and simulations of the P-SSHI interface circuit. Simulations and experiments were conducted to validate the theoretical analysis. The experimental results show that the maximum energy harvested by the system with a P-SSHI interface circuit is 231 μW, which is 2.89 times that of a system without the P-SSHI scheme. The power consumption of the P-SSHI interface circuit can be as low as 10.6 μW.

scholarly journals Impedance matching for broadband piezoelectric energy harvesting

2013 ◽  
Vol 476 ◽  
pp. 012083 ◽  
Author(s):  
F Hagedorn ◽  
J Leicht ◽  
D Sanchez ◽  
T Hehn ◽  
Y Manoli
Keyword(s):  
Energy Harvesting ◽  
Impedance Matching ◽  
Piezoelectric Energy Harvesting ◽  
Piezoelectric Energy

Self-Start Piezoelectric Energy Harvesting Circuit With Adjustable UVLO Converter for Wireless Sensor Network

2017 ◽  
Author(s):  
Hyun Jun Jung ◽  
Soobum Lee ◽  
Hamid Jabbar ◽  
Se Yeong Jeong ◽  
Tae Hyun Sung
Keyword(s):  
Wireless Sensor Network ◽  
Energy Harvesting ◽  
Sensor Network ◽  
Energy Harvester ◽  
Impedance Matching ◽  
Wireless Sensor ◽  
Experimental Result ◽  
Piezoelectric Energy Harvesting ◽  
Wireless Sensor Node ◽  
Piezoelectric Energy

This paper proposes a self-start piezoelectric energy harvesting circuit with an undervoltage-lockout (UVLO) converter for a wireless sensor network (WSN). First, a self-start circuit with mini piezoelectric energy harvester (PEH) is designed to supply the power for operation of the oscillator without battery. The experimental results show that a batteryless self-start circuit successfully operates the oscillator with mini-PEH, and self-starting time is 0.45 s. Second, this paper proposes an adjustable UVLO converter that can supply the power even if a power consumption of a wireless sensor node is higher than generated power from PEH. The experimental result shows the adjustable UVLO converter supplies 45 mW for 0.12 s after charging the output power of an impedance matching circuit (1.7 mW) for 10 s. This paper shows that the proposed circuit successfully overcomes challenging issues — self-start and lower power generation — for powering WSN.

scholarly journals Lead-Free Bi3.15Nd0.85Ti3O12 Nanoplates Filler-Elastomeric Polymer Composite Films for Flexible Piezoelectric Energy Harvesting

Micromachines ◽  
2020 ◽  
Vol 11 (11) ◽  
pp. 966
Author(s):  
Wancheng Qin ◽  
Peng Zhou ◽  
Yajun Qi ◽  
Tianjin Zhang
Keyword(s):  
Energy Harvesting ◽  
Mechanical Energy ◽  
Short Circuit ◽  
Composite Films ◽  
Short Circuit Current ◽  
Lead Free ◽  
Piezoelectric Energy Harvesting ◽  
Wearable Electronics ◽  
Light Emitting ◽  
Piezoelectric Energy

Nowadays, wearable and flexible nanogenerators are of great importance for portable personal electronics. A flexible piezoelectric energy harvester (f-PEH) based on Bi3.15Nd0.85Ti3O12 single crystalline nanoplates (BNdT NPs) and polydimethylsiloxane (PDMS) elastomeric polymer was fabricated, and high piezoelectric energy harvesting performance was achieved. The piezoelectric output performance is highly dependent on the mass ratio of the BNdT NPs in the PDMS matrix. The as-prepared f-PEH with 12.5 wt% BNdT NPs presents the highest output voltage of 10 V, a peak-peak short-circuit current of 1 μA, and a power of 1.92 μW under tapping mode of 6.5 N at 2.7 Hz, which can light up four commercial light emitting diodes without the energy storage process. The f-PEHs can be used to harvest daily life energy and generate a voltage of 2–6 V in harvesting the mechanical energy of mouse clicking or foot stepping. These results demonstrate the potential application of the lead-free BNdT NPs based f-PEHs in powering wearable electronics

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