A broadband bistable piezoelectric cantilever-based vibration energy harvester with nonlinear high power extraction

Singh, Kanishka Aman

doi:10.31274/etd-180810-4470

Cited by 3 publications

(3 citation statements)

References 57 publications

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“…Among various renewable forms of energy, mechanical vibrations are deemed to be one of the most attractive power sources for low-power electronics owing to its power density, versatility and abundance in real environments. Vibration-to-electricity conversion via piezoelectric materials has been investigated by many researchers [1][2][3][4]. They provide high output voltages and have compact size.…”

Section: Introductionmentioning

confidence: 99%

Piezoelectric buckled beams for random vibration energy harvesting

Cottone

Gammaitoni

Vocca

et al. 2012

Smart Mater. Struct.

337

191

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Among the main vibration-to-electricity conversion systems, resonant harvesters suffer from a series of strong limits like their narrow frequency response and poor output power at small scale. Most of all, realistic vibration sources are variable in time and abundant at relatively low frequencies. Nonlinear vibration harvesters, on the other hand, are more attractive, thanks to their large bandwidth response and flexibility to convert kinetic energy of the natural frequency of the sources. In particular, bistable oscillators have been proven to show higher global performances when excited by random vibrations. In this paper, such an approach is investigated for piezoelectric beams by exerting an increasing axial compression. An advantage of this technique is the absence of magnetic forces to create bistable dynamics. A thin piezoelectric axially loaded beam is theoretically modelled and experimentally investigated under wideband random vibrations. In the buckled configuration, the device exhibits superior power generation over a large interval of resistive load, with gains up to more than a factor of ten compared to the unbuckled state. The numerical model and experimental results are in good qualitative agreement.

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Section: Introductionmentioning

confidence: 99%

Piezoelectric buckled beams for random vibration energy harvesting

Cottone

Gammaitoni

Vocca

et al. 2012

Smart Mater. Struct.

337

191

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“…Salah satu teknik yang dapat digunakan untuk proses konversi energi getaran menjadi energi listrik yaitu menggunakan piezoelektrik. Bahan piezoelektrik dapat digunakan sebagai sumber pemanen energi, yang dapat diaplikasikan sebagai penyuplai daya pada sebuah sensor (Singh, 2007). Selain itu, bahan piezolektrik memiliki kemampuan untuk konversi tekanan mekanik menjadi energi listrik (Sodano, 2004).…”

Section: Pendahuluanunclassified

Pembangkit Listrik Tenaga Gempa Bumi (Pltgb) : Pemanfaatan Getaran Gempa Bumi Sebagai Penghasil Energi Listrik Pasca Gempa Yang Ramah Lingkungan

Amalia

2020

PTS

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Earthquakes are events that come suddenly. Until now, the occurrence of the earthquake has not yet been predicted. Likewise, the risk posed by earthquakes cannot be predicted, but can be reduced through disaster mitigation. However, mitigation has not been able to solve problems that occur after the earthquake, such as constraints on meeting electrical energy. Indonesia has the potential to utilize earthquake vibrations into electricity, through the Earthquake Power Plant (PLTGB) proposed by the author. One of the techniques that can be used for the process of converting earthquake vibration energy into electrical energy is using piezoelectric materials. Piezoelectric material is a material that has high advantages with a stable energy density and does not require an external power so that its utilization produces large profits. The process of harvesting electrical energy is obtained from applying pressure to the piezoelectric material at a certain frequency, so that the piezoelectric material can function as an electric generator. The type of writing used in this paper is literature review, with secondary data sources obtained from various literatures. Data collection techniques using documentation study. Data analysis used an interactive analysis model, namely data collection, data reduction, data presentation and drawing conclusions. The principle of PLTGB application is carried out in two periods, namely the period during the earthquake and the period outside the earthquake with the aim of storing energy reserves outside the earthquake. The PLTGB construction material is implanted under the highway at 5 meters near the zebra crossing which will be made like a bump, so that during the earthquake period the material will work as in principle. However, outside the earthquake period, when the vehicle stops or runs, it will put mechanical pressure on the piezoelectric which can generate electric current. The material to be used as a piezoelectric in PLTGB is Barium Titanate (BaTiO3). This material is based on normal ferroelectricity which is strong for transducer induction when compared to the magnitude of its polarization, the amount of permittivity, and the amount of stress induction that this material can reach. The first stage of PLTGB implementation is creating a pilot area, the second stage of evaluation, the third stage of promotion, the fourth stage of PLTGB socialization, and the fifth stage of developing PLTGB nationally. For Indonesia, PLTGB has the potential to be applied. It is hoped that the electrical energy produced by PLTGB can be used for post-earthquake activities.

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“…1), which points out that the key component for optimizing the energy conversion is the piezoelectric device. As piezoelectric device, a stack of PZT patches with an additional mass, or a cantilevered beam can be used [3], [4]. The latter could be of unimorph type (one piezoelectric layer glued or deposited on a metallic strip support) or of bimorph type (two piezoelectric plates with opposite poling and glued together directly or by means of a metallic strip.…”

Section: Piezoelectric Generators and Energy Harvestingmentioning

confidence: 99%

Piezoelectric Devices for Power Harvesting on Mechanical Displacements

Niţu

Nitu

Grămescu

et al. 2010

MSF

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The paper presents the ability of the piezoelectric devices to capture the environmental vibrations, in order to generate electric power for supplying electronic small portable devices. Theoretical and experimental investigations were performed, both for stack and cantilever beam configuration of the piezoelectric devices, with good agreement between results. An improved mechanical architecture is proposed.

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A broadband bistable piezoelectric cantilever-based vibration energy harvester with nonlinear high power extraction

Cited by 3 publications

References 57 publications

Piezoelectric buckled beams for random vibration energy harvesting

Piezoelectric buckled beams for random vibration energy harvesting

Pembangkit Listrik Tenaga Gempa Bumi (Pltgb) : Pemanfaatan Getaran Gempa Bumi Sebagai Penghasil Energi Listrik Pasca Gempa Yang Ramah Lingkungan

Piezoelectric Devices for Power Harvesting on Mechanical Displacements

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