Research on a Piezoelectric Energy Harvester with Rotating Magnetic Excitation

Wang, Zhe; He, Lipeng; Zhang, Zheng; Zhou, Ziming; Zhou, Jianwen; Cheng, Guangming

doi:10.1007/s11664-021-08910-y

Cited by 23 publications

(7 citation statements)

References 33 publications

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“…Pusat massa struktur diubah oleh bola yang menggelinding di dalam kotak untuk menyesuaikan frekuensi alami struktur. Tuning PEH ini dapat mengumpulkan daya pada pita frekuensi dari 16 Hz sampai 25 Hz [10]. Shi dkk.…”

Section: Pendahuluanunclassified

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Pengaruh Bentuk Penampang Bluff Body Persegi, Belah Ketupat, Dan Segitiga Terhadap Tegangan Listrik Yang Dihasilkan Oleh Piezoelektrik

Supriadi¹,

Gamayel²,

Murtalim³

et al. 2022

JTMMX

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Piezoelektrik adalah perangkat pemanen energi skala mikro yang mengkonversikan energi mekanik menjadi energi listrik. Ketika ada tumbukan pada material piezoelektrik maka akan menyebabkan terjadinya getaran serta menghasilkan tegangan dan defleksi. Metode penelitian ini yaitu dengan mengamati piezoelektrik yang bergetar akibat aliran udara yang melewati penampang bluff body untuk menghasilkan tegangan listrik.. Dimana dimensi dan tinggi dalam satu penampang bluff body persegi, belah ketupat, dan segitiga memiliki ukuran yang sama yaitu 7 cm. Kecepatan aliran angin yang dipakai yaitu 5 m/s, 7 m/s, dan 9m/s. Penelitian dilakukan di dalam terowongan angin dan jarak penampang bluff body terhadap piezoelektrik yaitu 80 cm. Hasil dari variabel bentuk penampang bluff body yang menghasilkan tegangan listrik tertinggi yaitu pada penampang bluff body belah ketupat. Hasil dari variabel kecepatan yang menghasilkan tegangan listrik tertinggi yaitu pada kecepatan 9 m/s menghasilkan tegangan listrik 5,58 volt penampang bluff body belah keupat. Akibat adanya olakan maka sirip bergerak keatas dan kebawah menumbuk piezoelektrik. Piezoelectric is a micro-scale energy harvesting device that converts mechanical energy into electrical energy. When there is a collision with the piezoelectric material, it will cause vibration and produce stress and deflection. This study aims to determine the effect of the shape of the cross section of the bluff body on the electric voltage generated by the piezoelectric. This research method is to observe the piezoelectric vibrating due to the flow of air that passes through the cross section of the bluff body to produce an electric voltage. The independent variables in this study were the shape of the bluff body, and the speed of the wind flow. Where the dimensions and height in one cross-section of the square bluff body, rhombus, and triangle have the same size, which is 7 cm. The wind speed used is 5 m/s, 7 m/s, and 9m/s. The research was conducted in a wind tunnel and the cross-sectional distance between the bluff body to the piezoelectric is 80 cm. The result of the variable cross-sectional shape of the bluff body that produces the highest electrical voltage is the rhombic bluff body cross-section. The result of the speed variable that produces the highest electrical voltage, which is at a speed of 9 m/s, produces an electric voltage of 5.58 volts across the body of the kept cliff. Due to the oscillations, the fins move up and down to hit the piezoelectric.

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Section: Pendahuluanunclassified

“…Daya rata-rata maksimum balok piezoelektrik primer dan tambahan masing-masing adalah 12,24 mW dan 3,92 mW. Pada daya maksimum balok piezoelektrik primer dan tambahan, tegangan melintasi resistansi masing-masing adalah 39,12 V dan 17,12 V [10].…”

Section: Pendahuluanunclassified

Pengaruh Bentuk Penampang Bluff Body Persegi, Belah Ketupat, Dan Segitiga Terhadap Tegangan Listrik Yang Dihasilkan Oleh Piezoelektrik

Supriadi¹,

Gamayel²,

Murtalim³

et al. 2022

JTMMX

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show abstract

“…In an attempt to improve the harvester's efficiency, t thors of [9] introduced a cantilever-driven rotor to enable efficient vibration energ vesting in the conversion of vibrations to a unidirectional state. Compared with th ventional cantilever-based harvesters, the rotor-based energy harvester (RBEH) ca vide both enhanced output power (1.8 mW versus 0.3 mW) and extended working width (4.5 Hz versus 1.9 Hz) under a harmonic vibration of 0.8 g. A similar appro the use of intermittent magnetic force between the rotational driving magnet and th magnetic mass to drive the piezoelectric-cantilevered element [1]. A mathematical for a harvester that uses a small gravity-induced disk mounted with a piezoelectric levered beam and a pair of magnets in the wind turbine blades was reported in [1 innovative system that offers a direct conversion of ambient vibration to unidire rotation through a new plectrum design-the vibration-to-rotation conversion m nism-was reported in [4].…”

Section: Working Principle On the Proposed Conceptmentioning

confidence: 99%

“…The general background for such endeavors is the conversion of the slow rotation of any mechanical device whose health is to be monitored, such as fan blades, rotors, and stators, crankshafts, rotating wheels, etc., into a unidirectional up-down vibrational motion or vice versa. Previous and current research endeavors have deployed these methods of vibrational energy harvesting in piezoelectric [1,2], electromagnetic [3,4], and hybridized [5,6] modes depending on the operational requirement and the operating environment.…”

Section: Introductionmentioning

confidence: 99%

Conceptional Designs of the Rotation Mechanism with Antiphase Energy Harvester

Wang

et al. 2021

The 8th International Electronic Conference on Sensors and Applications

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Due to the increased demand for a sustainable source of energy, the research on energy harvesting has increased in the last twenty years. Energy harvesting aims to gain energy from the ambient environment and convert this energy into electrical power. There are different kinds of renewable energy sources and vibration energy harvesting (VEH) is the most promising source owing to its low maintenance cost. This paper focuses on an electromagnetic vibration energy harvester based on the concept of rotational energy harvesting. The proposed device uses a rotating rotor with permanent magnets and moves the repulsive magnet block up and down. The block is connected to an antiphase harvester, which creates power by cutting the magnetic flux density. The antiphase was proven to double the voltage when the antiphase was moving. To improve the vibration amplitude of the magnet block and the antiphase, springs were added to the proposed design. In the concept, four configurations—with and without different spring positions—were proposed. The experimental results showed that when the spring was placed in the upper and bottom part of the moving part, the spring at the bottom would generate the largest vibration amplitude. Based on Faraday’s Law of Induction, voltage is proportional to the velocity or vibration amplitude. Hence, for both cases, at least six times the voltage was generated compared to the design without added springs.

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“…Several well-established energy harvesting methods including the electromagnetic effect (Yan et al, 2020), the piezoelectric effect (Z. Wang et al, 2021), and the triboelectric effect (C. , etc. have been established in recent years to acquire energy from the surroundings that are required to run low-power, portable smart electronics.…”

Section: Introductionmentioning

confidence: 99%

An Optimized Energy Harvesting Circuit for Low-Power IoT Applications

Barua

Rasel

2022

MIJST

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The concept and development of an independent energy harvesting mechanism functioning intermittently are described in this paper. A power management circuit (PMC) that is self-regulating, an energy scavenging module, a circuit for charging batteries, as well as an electronic load are all a component of the system that has been proposed. This proposed circuit is designed to attain a fixed output power with a diverse input range. In the unavailability of an additional voltage supply, the PMC can react, maintain, and smartly control the electronic load's power supply. The self-powered energy accumulating technique is expected to be used in situations when supplied power is inadequate to drive the load properly, such as Internet of Things (IoT) applications. IoT is a dispersed architecture of reduced-power, limited-storage, lightweight, and nodes that are adaptive. The majority of embedded IoT devices and low-power IoT sensors are driven by short-life batteries that must be replaced every few years. This procedure is expensive and efficient energy regulation could be critical in enabling energy savings for connecting IoT devices. Experiments with the proposed PMC show that the voltage stored in the capacitor remained mostly fixed at 3.3V at widely diverse inputs that vary from 850mV to 4V. At 3.5V input voltage, a peak efficiency of 88.67% is achieved while the load resistance considered is 230Ω.

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Research on a Piezoelectric Energy Harvester with Rotating Magnetic Excitation

Cited by 23 publications

References 33 publications

Pengaruh Bentuk Penampang Bluff Body Persegi, Belah Ketupat, Dan Segitiga Terhadap Tegangan Listrik Yang Dihasilkan Oleh Piezoelektrik

Pengaruh Bentuk Penampang Bluff Body Persegi, Belah Ketupat, Dan Segitiga Terhadap Tegangan Listrik Yang Dihasilkan Oleh Piezoelektrik

Conceptional Designs of the Rotation Mechanism with Antiphase Energy Harvester

An Optimized Energy Harvesting Circuit for Low-Power IoT Applications

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