A rotating piezoelectric-electromagnetic hybrid harvester for water flow energy

He, Lipeng; Han, Yuhang; Sun, Li Gen; Wang, Hongxin; Zhang, Zhonghua; Cheng, Guangming

doi:10.1016/j.enconman.2023.117221

Cited by 12 publications

(2 citation statements)

References 26 publications

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“…The piezoelectric energy harvesting technology, a common method of sustainable clean energy from the external environment, provides idea for power supplying of sensors in water hydraulic system. It is widely used in the field of wind energy [6,7], tidal energy [8], water energy [9,10] and mechanical vibration [11] due to its high energy conversion efficiency, wide applicability and stability. On the other hand, pressure pulsation often occurs in the pipeline of water hydraulic system, which can cause vibration and noise, but also exhibits huge vibration energy harvesting potential [12,13].…”

Section: Introductionmentioning

confidence: 99%

Performance study of an array piezoelectric energy harvester for pressure pulsation vibration energy in water hydraulic system

Xian,

Xu,

Chen

et al. 2024

J. Phys. D: Appl. Phys.

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In this paper, an array piezoelectric energy harvester (APEH) is designed for energy collection from water hydraulic system. The APEH is arranged in a spatial axial array, exhibiting excellent insulation and waterproof properties. The effects of connection modes and pressure pulsation parameters on the output performance of APEH are investigated through theoretical analysis, simulation and experiment. The results show that the output electric energy of each piezoelectric disk is consistent, and it is generated by the deformation caused by pressure pulsation. The connection modes show significant differences at different resistances. Series and parallel connections have the same maximum output power. The parallel connection has a smaller optimal resistance and has advantages in practical engineering applications. Both the pressure amplitude and the pulsation frequency affect the output voltage and power and increasing the pulsation frequency leads to the decrease of optimal resistance. By employing parallel connection, APEH can achieve higher output at lower load resistances. When the resistance is 12 kΩ, the average power and power density are reach as 997.63 μW and 2.54 μW mm−3, respectively. In summary, the APEH proposed in this paper offering a viable solution for energy recovery in water hydraulic systems and the sustainable power supply of the sensors, along with providing relevant theoretical references and practical schemes.

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Section: Introductionmentioning

confidence: 99%

Performance study of an array piezoelectric energy harvester for pressure pulsation vibration energy in water hydraulic system

Xian,

Xu,

Chen

et al. 2024

J. Phys. D: Appl. Phys.

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show abstract

“…Additionally, the harvester can collect saturates at 3157.7 mu W with a wind speed of 7.0 m/s under rainfall. To collect the energy from falling water, He et al [ 32 ] proposed a hybrid energy harvester that combined piezoelectric and electromagnetic mechanisms. Two piezoelectric energy harvesters and two electromagnetic energy harvesters work together to improve the output characteristic.…”

Section: Introductionmentioning

confidence: 99%

An Array Magnetic Coupling Piezoelectric and Electromagnetic Energy Harvester for Rotary Excitation

Chen

2023

Micromachines

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The energy of rotating machinery exists widely in the environment. It is of great significance to collect and utilize the energy of rotating machinery for sustainable development. In this paper, a novel piezoelectric and electromagnetic energy harvester, which is capable of generating electrical energy under rotary excitation, is proposed based on array magnetic coupling. The working principle of this kind of energy harvester is analyzed. And the energy output modeling of the harvester is developed and output results are simulated. Based on the experimental test platform built in the laboratory, the output characteristics of the piezoelectric and electromagnetic energy harvester are tested. Results show that the maximum output power of the proposed energy harvester reaches 182 mW when the excitation speed is 120 rpm. Furthermore, both the piezoelectric module and the electromagnetic module can reach the maximum output power at the excitation speed of 120 rpm.

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A Piezoelectric Electromagnetic Composite Energy Harvester for Collecting Pedestrian Walking Energy

Feng,

Wang,

Yang

et al. 2024

Physica Status Solidi (a)

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A piezoelectric‐electromagnetic composite energy harvester (PECEH) has been designed, to mainly study the relationship between the length and angle of piezoelectric cantilever beams and their power generation performance, and the analysis of dynamic models in magnetic levitation systems and the impact of magnet size on power generation performance. In this device, piezoelectric energy harvester (PEH) and electromagnetic harvester (EMH) are used as powered and sensing, respectively. The PEH collects vibration to generate electricity and supplies energy to the EMH, which then transmits the wireless signal. EMH adopts a magnetic levitation device with higher sensitivity, while PEH uses a direct contact strike piezoelectric plate to increase power generation. The paddles are made of flexible materials, which increase the durability of the device. The prototype was tested at different excitation frequencies. Research has shown that at a frequency of 1.4 Hz, the optimal voltage and power are 126.28, 4.04 V, and 4.9 mW and 0.57 μW. 60 light emitting diode can be lit when pedestrians are walking. Therefore, PECEH can be used to collect the vibration energy of pedestrians while walking, providing power to sensors and microstructure.

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A rotating piezoelectric-electromagnetic hybrid harvester for water flow energy

Cited by 12 publications

References 26 publications

Performance study of an array piezoelectric energy harvester for pressure pulsation vibration energy in water hydraulic system

Performance study of an array piezoelectric energy harvester for pressure pulsation vibration energy in water hydraulic system

An Array Magnetic Coupling Piezoelectric and Electromagnetic Energy Harvester for Rotary Excitation

A Piezoelectric Electromagnetic Composite Energy Harvester for Collecting Pedestrian Walking Energy

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