Design, modeling and experimental verification of circular Halbach electromagnetic energy harvesting from bearing motion

Zhang, Ying; Cao, Junyi; Zhu, Hongyu; Lei, Yaguo

doi:10.1016/j.enconman.2018.11.037

Cited by 116 publications

(28 citation statements)

References 47 publications

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“…This works 61.3 μW power with 1 Hz frequency, which is greater than the upsprung rotor part. Zhang et al [59] present EMEH using the circular Halbach array Method from bearing motion. The design utilizes the rotational speed is varied from 600-1000rpm by consumes the average power of 50.8-131.1 mW with a harvested output voltage of 2.79 V-4.59 V. Fan et al [60] present the EMEH using nonlinear two-degree freedom features for human body motions.…”

Section: Electromagnetic Energy Harvesting (Emeh)mentioning

confidence: 99%

Recent Progress on Bio-mechanical Energy Harvesting System from the Human Body: Comprehensive Review

Mohankumar¹,

Jayaramaiah²

2021

IJACSA

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Energy harvesting is a powerful technique to produce clean and renewable energy with better infrastructure improvement. The exhaustive review of recent progress and development in bio-mechanical energy harvesting (BMEH) techniques from human body is discussed in this manuscript. The BMEH from the human body is categorized into three parts, namely, piezoelectric energy harvesting (PEEH), triboelectric energy harvesting (TEEH), and Electro-magnetic Energy harvesting (EMEH). Each energy harvesting system is discussed with working principles with mathematical equations; each energy harvesting progress is discussed with a few work demonstrations. The applications of each energy harvesting from the recent research work are addressed in detail. The summary of each energy harvester from the human body or motion with advantages, limitations, performance metrics, current methods, and implemented human body parts are highlighted with Tabulation. The critical challenges/issues with possible solutions are also discussed.

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Section: Electromagnetic Energy Harvesting (Emeh)mentioning

confidence: 99%

Recent Progress on Bio-mechanical Energy Harvesting System from the Human Body: Comprehensive Review

Mohankumar¹,

Jayaramaiah²

2021

IJACSA

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“…Wang [25] proposed a circular Halbach array magnetic disk, which was used in a natural-frequency self-tuning energy harvester. Zhang [26,27] proposed a circular Halbach array for monitoring the health condition of bearings. Because of the low fabrication cost, 16 cubic magnets instead of arc-shaped magnets were embedded in a ring area to form a Halbach array.…”

Section: Introductionmentioning

confidence: 99%

Characteristic Analysis, Simulation, and Experimental Comparison of Two Kinds of Circular Magnet Array in Energy Harvesting

et al. 2022

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The circular Halbach array is of great application value in electromagnetic energy conversion. The Halbach array can be formed with multiple magnets according to a specific method. The magnetic flux intensity of the magnet array is concentrated and enhanced in a certain area. The concentrated magnetic flux intensity could lead to a higher rate of change in the magnetic flux when the magnet and the coil move relatively. The spatial arrangement, structural dimensions, and residual flux density of the Halbach array are the main factors affecting its performance. Some areas with almost no magnetic induction in the Halbach array affect the performance of electromagnetic energy conversion. This paper conducted a comparative study of the Halbach array and the two-directional magnet array in terms of energy conversion. The root mean square (RMS) value and phase of the induced voltage in the coil were analyzed by a finite element method. Simulation shows that the RMS value of the induced voltage in the coil is equal when the gap is 1.55 mm and the REMEH adopts either of the two magnet arrays. The two-directional array has advantages in the energy harvesting performance when the gap is less than 1.55 mm, while the Halbach array has advantages in the energy harvesting performance when the gap is greater than 1.55 mm. The experimental verification of the designed prototype was implemented in this study. The experimental voltage is in good agreement with the simulation voltage. The threshold value of the gap in the experiment is about 2 mm, which is slightly higher than the simulation value. This characteristic has a certain reference value for the application of the Halbach array in the electromagnetic field.

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“…In recent years, with the rapid development of low-power communication and microelectronics technologies, more and more low-power consumption sensors are applied widely in a variety of industrial occasions [1][2][3]. As a sustainable energy supply method, the vibration energy harvesting technology has attracted plenty of scholars to investigate the huge potential in many significant occasions, such as mechanical structure health monitoring, vehicle tire pressure monitoring, IoT and human health monitoring [4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

High-energy orbit sliding mode control for nonlinear energy harvesting

et al. 2021

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Vibration energy harvesting has extensive application prospects in many significant occasions, such as mechanical structure health monitoring, vehicle tire pressure monitoring, IoT devices and human health monitoring. The nonlinearity is an effective method to improve the energy harvesting efficiency where there are low-and high-energy orbits in the multi-solution region of the system. The harvested power will be increased significantly when the system is guided from the low-energy orbit to the high-energy orbit. However, previous research mainly focuses on the theoretical and numerical investigation of controlling strategy, but the feasibility of control methods has not been verified experimentally. This paper proposes a high-energy sliding mode control method through rotatable magnets actuated by micro-motor. The electromechanical model of mono-stable and bi-stable systems with the identified nonlinear restoring force is established to design a sliding mode control algorithm for enhancing the energy 2 harvesting performance. Simulation and experiment results demonstrate that the rotatable magnets with sliding mode control have a positive influence on reaching the high-energy orbit for both mono-stable and bi-stable systems within the multisolution region. Moreover, the rotatable magnets method with a sliding mode control actuates the small magnets in the system for a short time with little consumption of energy. This research has provided a practical application of highenergy orbit control for improvement of the energy harvesting.

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Design, modeling and experimental verification of circular Halbach electromagnetic energy harvesting from bearing motion

Cited by 116 publications

References 47 publications

Recent Progress on Bio-mechanical Energy Harvesting System from the Human Body: Comprehensive Review

Recent Progress on Bio-mechanical Energy Harvesting System from the Human Body: Comprehensive Review

Characteristic Analysis, Simulation, and Experimental Comparison of Two Kinds of Circular Magnet Array in Energy Harvesting

High-energy orbit sliding mode control for nonlinear energy harvesting

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