A Topology and Design Optimization Method for Wideband Piezoelectric Wind Energy Harvesters

Rezaei-Hosseinabadi, Nasrin; Tabesh, Ahmadreza; Dehghani, Rasoul

doi:10.1109/tie.2015.2499248

Cited by 29 publications

(18 citation statements)

References 25 publications

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“…Researchers have used different excitation elements in rotational piezoelectric energy harvestings, such as mass [28,31], magnetic [33][34][35] centrifugal force [36,37], gravitational force [38][39][40], and gear teeth force [41,42] or a compilation of these elements [26,43,44]. They have also applied these elements to widen the broadband range [14,45,46] or for frequency up-conversion [6,43,47] and rotational frequency, which is considered to be low in some cases compared to piezoelectric resonant frequency. While these different methods for rotational piezoelectric energy harvesting offer many advantages, they have numerous challenges.…”

Section: Of 25mentioning

confidence: 99%

Harvesting Energy from Planetary Gear Using Piezoelectric Material

et al. 2020

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In the present study, a rotational piezoelectric (PZT) energy harvester has been designed, fabricated and tested. The design can enhance output power by frequency up-conversion and provide the desired output power range from a fixed input rotational speed by increasing the interchangeable planet cover numbers which is the novelty of this work. The prototype ability to harvest energy has been evaluated with four experiments, which determine the effect of rotational speed, interchangeable planet cover numbers, the distance between PZTs, and PZTs numbers. Increasing rotational speed shows that it can increase output power. However, increasing planet cover numbers can increase the output power without the need to increase speed or any excitation element. With the usage of one, two, and four planet cover numbers, the prototype is able to harvest output power of 0.414 mW, 0.672 mW, and 1.566 mW, respectively, at 50 kΩ with 1500 rpm, and 6.25 Hz bending frequency of the PZT. Moreover, when three cantilevers are used with 35 kΩ loads, the output power is 6.007 mW, and the power density of piezoelectric material is 9.59 mW/cm3. It was concluded that the model could work for frequency up-conversion and provide the desired output power range from a fixed input rotational speed and may result in a longer lifetime of the PZT.

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Section: Of 25mentioning

confidence: 99%

Harvesting Energy from Planetary Gear Using Piezoelectric Material

et al. 2020

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“…Therefore, the harvesters have an impact on the rotational motion of the rotating host. The efficiency [27,28], the start-up requirements [18] and the operating bandwidth [29] are the main consideration in this case.…”

Section: Introductionmentioning

confidence: 99%

A methodology for low-speed broadband rotational energy harvesting using piezoelectric transduction and frequency up-conversion

Yeatman

2017

Energy

175

107

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“… Possible implementation of PRREHs: (a) direct‐impact actuated PRREH, and (b) magnetic‐force plucked PRREH ,…”

Section: Classification and Theoretical Modellingmentioning

confidence: 99%

“…5 mW was extracted at 200 rpm. Similar designs with different design considerations, such as harvester configurations, magnet arrangements, operating conditions and cut‐in speed, were investigated.…”

Section: Introductionmentioning

confidence: 99%

Comparison and Scaling Effects of Rotational Micro‐Generators using Electromagnetic and Piezoelectric Transduction

Yeatman

2018

Energy Tech

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Rotational energy is widely distributed or easily acquirable from other energy sources (fluid flow, machine operation or human motion) in many industrial and domestic scenarios. At small scales, power generation from such rotational ambient sources can enable many autonomous and self‐reliant sensing applications. In this paper, three typical types of micro‐generators (energy harvesters), namely electromagnetic (EMREHs), piezoelectric resonant (PRREHs) and piezoelectric non‐resonant rotational energy harvesters (PNRREHs) are discussed and compared in terms of device dimensions and operation frequencies. Theoretical models are established for each type to calculate maximum achievable output power as a function of device dimension and operating frequency. Using these theoretical models, scaling laws are established for each type to estimate the achievable output. The EMREHs have a strong scaling effect both on device dimension (as L5) and on operating frequency (as ω2), whereas the PNRREHs are less so (L2.5ω0.5). PRREHs have a narrow band‐width as resonant harvesters, and are ideal for cases where the excitation frequency is constant. This study provides a guideline for selection and design of rotational energy harvesters (REH) when the device dimension and operating frequency are defined. The proposed scaling laws offer a convenient method to estimate the harvester performance for different dimensions and operating frequencies.

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A Topology and Design Optimization Method for Wideband Piezoelectric Wind Energy Harvesters

Cited by 29 publications

References 25 publications

Harvesting Energy from Planetary Gear Using Piezoelectric Material

Harvesting Energy from Planetary Gear Using Piezoelectric Material

A methodology for low-speed broadband rotational energy harvesting using piezoelectric transduction and frequency up-conversion

Comparison and Scaling Effects of Rotational Micro‐Generators using Electromagnetic and Piezoelectric Transduction

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