Investigating Piezoelectric Energy Harvesting Circuits for Piezoelectric Flags

Zargarani, Anahita; Mahmoodi, Nima

doi:10.1115/smasis2015-9011

Cited by 2 publications

(2 citation statements)

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“…The voltage produced by the piezoelectric harvester is considered to be sinusoidal. It is placed in a series connection with the internal impedance of the piezoelectric energy harvester (Zargarani & Mahmoodi, 2015). The general formula for the output power of the SRL circuit is:…”

Section: Dynamic Modeling Of the Energy Harvesting Circuitsmentioning

confidence: 99%

Circuit Optimization for Enhancing the Output Power of a Piezoelectric Energy Harvester

Zargarani

Mahmoodi

2018

IJAS

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In this paper, a new method is proposed for improving a piezoelectric energy harvester’s output power. A piezoelectric vibration energy harvester has an inherent internal capacitance. The new approach adopts inductance to reduce the reactance of the internal capacitance and enhance the output power. To show the practicality of this method, four electrical circuits are investigated numerically and experimentally for a piezoelectric beam energy harvester: Simple Resistive Load, Inductive Load, standard AC-DC, and Inductive AC-DC circuits. An Inductive Load circuit is built by adding an inductor to a Simple Resistive Load circuit, while an Inductive AC-DC circuit is built by adding an inductor to a standard AC-DC circuit. Experimental results indicate that the Inductive Load and the Inductive AC-DC circuits avail the Simple Resistive Load and standard AC-DC circuits respectively. The inductive AC-DC circuit shows a 6.7% increase in the output power compared to the standard AC-DC circuit.

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Section: Dynamic Modeling Of the Energy Harvesting Circuitsmentioning

confidence: 99%

Circuit Optimization for Enhancing the Output Power of a Piezoelectric Energy Harvester

Zargarani

Mahmoodi

2018

IJAS

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“…In addition, to reduce the ripple on the output voltage, a filter capacitor C is used. The experimental validation conducted by Zargarani and Mahmoodi for wind energy harvesting using a piezoelectric flag [ 119 ] shows the output power would be reduced as a result of voltage drop across the non-ideal diodes in their forward-biased mode. Since 1N4001 diodes were used with 1V forward bias, a total of 2 V voltage drop across the forward-biased diodes existed in the circuit before reaching the output due to the connection of two series diodes.…”

Section: Power Management Systemsmentioning

confidence: 99%

Portable Wind Energy Harvesters for Low-Power Applications: A Survey

Nabavi

Zhang

2016

Sensors

108

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Energy harvesting has become an increasingly important topic thanks to the advantages in renewability and environmental friendliness. In this paper, a comprehensive study on contemporary portable wind energy harvesters has been conducted. The electrical power generation methods of portable wind energy harvesters are surveyed in three major groups, piezoelectric-, electromagnetic-, and electrostatic-based generators. The paper also takes another view of this area by gauging the required mechanisms for trapping wind flow from ambient environment. In this regard, rotational and aeroelastic mechanisms are analyzed for the portable wind energy harvesting devices. The comparison between both mechanisms shows that the aeroelastic mechanism has promising potential in producing an energy harvester in smaller scale although how to maintain the resonator perpendicular to wind flow for collecting the maximum vibration is still a major challenge to overcome for this mechanism. Furthermore, this paper categorizes the previously published portable wind energy harvesters to macro and micro scales in terms of their physical dimensions. The power management systems are also surveyed to explore the possibility of improving energy conversion efficiency. Finally some insights and research trends are pointed out based on an overall analysis of the previously published works along the historical timeline.

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Investigating Piezoelectric Energy Harvesting Circuits for Piezoelectric Flags

Cited by 2 publications

References 0 publications

Circuit Optimization for Enhancing the Output Power of a Piezoelectric Energy Harvester

Circuit Optimization for Enhancing the Output Power of a Piezoelectric Energy Harvester

Portable Wind Energy Harvesters for Low-Power Applications: A Survey

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