New modifications of a Bennet doubler circuit-based electrostatic vibrational energy harvester

Dragunov, V.P.; Ostertak, Dmitriy I.; Sinitskiy, R.E.

doi:10.1016/j.sna.2019.111812

Cited by 32 publications

(8 citation statements)

References 48 publications

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“…Vibration energy harvesting, as a renewable energy production method, converts vibrations caused by human movement, mechanical equipment, underwater flow, etc., into usable electrical energy. Piezoelectric [ 2 , 3 , 4 , 5 , 6 ], electromagnetic [ 7 , 8 , 9 ], electrostatic [ 10 , 11 ], and triboelectric [ 12 , 13 ] technologies are common conductive mechanisms in this field. Compared with other conduction mechanisms, piezoelectric vibration energy harvesters have received extensive attention and research because of their simple structure, high energy density, and freedom from electromagnetic interference.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear Energy Harvesting by Piezoelectric Bionic ‘M’ Shape Generating Beam Featured in Reducing Stress Concentration

Xiong

et al. 2023

Micromachines

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Inspired by the flapping wings of seagulls during flight, a new low-cost, magnet-free, bistable piezoelectric energy harvester is proposed to obtain energy from low-frequency vibration and convert it into electrical energy and reduce fatigue damage caused by stress concentration. In order to optimize the power generation efficiency of this energy harvesting, finite element analysis and experimental tests were carried out. The results of finite element analysis and experimental results are in good agreement, and the superior performance in improving stress concentration of the energy harvester compared to the previous parabolic (bow-shaped) one using bistable technology was quantitatively analyzed using finite element simulation, with a maximum stress reduction of 32.34%. The experimental results showed that under optimal operating conditions, the maximum open-circuit voltage of the harvester was 11.5 V, and the maximum output power was 73 μW. These results indicate that this is a promising strategy, which provides a reference for collecting vibrational energy in low-frequency environments.

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Section: Introductionmentioning

confidence: 99%

Nonlinear Energy Harvesting by Piezoelectric Bionic ‘M’ Shape Generating Beam Featured in Reducing Stress Concentration

Xiong

et al. 2023

Micromachines

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“… 3 , 4 Naturally, vibration energy harvesting technology has flourished over the past two decades. In general, vibration energy harvesting technology mainly includes three categories: piezoelectric vibration energy harvesting, 5 , 6 , 7 electrostatic vibration energy harvesting, 8 , 9 , 10 , 11 , 12 , 13 and electromagnetic vibration energy harvesting. 14 , 15 , 16 It is worth noting that electromagnetic vibration energy harvesting technology can be further subdivided into linear electromagnetic vibration energy harvesting technology 17 and rotary electromagnetic vibration energy harvesting technology (RE-VEH).…”

Section: Introductionmentioning

confidence: 99%

Parameter optimization analysis of rotary electromagnetic vibration energy harvester for performance enhancement under free vibration

Song,

Zhang,

et al. 2023

iScience

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“…The existing green energy can be roughly divided into solar energy 1 , 2 , wind energy 3 , heat energy 4 and environmental vibration energy 5 , 6 . In the field of ambient vibrational energy harvesting, the common energy harvesting mechanisms include electrostatic 7 , 8 , electromagnetic 9 – 11 , piezoelectric 12 – 14 and magnetostrictive 15 , 16 . The electrical energy converted from the harvested ambient vibrational energy can be used to power self-powered devices, such as microelectromechanical devices, wireless sensor networks, embedded structural monitors and remote condition monitoring devices 17 – 19 .…”

Section: Introductionmentioning

confidence: 99%

Analytical solution and optimal design for the output performance of Galfenol cantilever energy harvester considering electromechanical coupling effect

Wang

Lian

Shu

et al. 2023

Sci Rep

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The theoretical model of a Galfenol cantilever energy harvester is investigated for vibration energy harvesting. Compared with the numerical solution, the analytical solution can better capture the intrinsic effects of the physical parameters on the performance of the harvester. In this work, an electromechanical coupled distributed-parameter model of the Galfenol cantilever energy harvester is established based on Hamilton’s principle, linear constitutive equations of magnetostrictive material, and Faraday’s law of electromagnetic induction. The definitions and expressions of the electric damping and modified frequency are proposed due to the electromechanical coupling. The explicit analytical expressions of the average harvested power across the load resistance and tip vibration displacement of the Galfenol energy harvesting model are derived using the methods of Galliakin decomposition and electromechanical decoupling. The accuracy of the derived analytical results is verified by the experimental data and numerical solutions. The vibration response and energy harvesting performance of the Galfenol energy harvesting model are investigated by varying the excitation frequency, external resistance, and excitation acceleration amplitude. The analytical results show that, with the increase of the external load resistance and excitation frequency, the harvested power increases first and then decreases, indicating the existence of the optimal resistance and excitation frequency. From the explicit analytical expressions of the average harvested power, the optimal external load resistance or excitation frequency could be easily found to achieve the maximum harvested power for any fixed excitation frequency or external load resistance. The concept of proposing the electric damping and modified frequency for the Galfenol cantilever energy harvester simplifies the solution process for the output performances benefiting from the exact relationship between the output performances and the electromechanical coupling parameter derived in this work.

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New modifications of a Bennet doubler circuit-based electrostatic vibrational energy harvester

Cited by 32 publications

References 48 publications

Nonlinear Energy Harvesting by Piezoelectric Bionic ‘M’ Shape Generating Beam Featured in Reducing Stress Concentration

Nonlinear Energy Harvesting by Piezoelectric Bionic ‘M’ Shape Generating Beam Featured in Reducing Stress Concentration

Parameter optimization analysis of rotary electromagnetic vibration energy harvester for performance enhancement under free vibration

Analytical solution and optimal design for the output performance of Galfenol cantilever energy harvester considering electromechanical coupling effect

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