The modelling of an electromagnetic energy harvesting architecture

Bernal, Alba Graciela Ávila; García, L.E. Linares

doi:10.1016/j.apm.2011.12.007

Cited by 42 publications

(37 citation statements)

References 8 publications

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“…Therefore, the proper term should be the "pseudo-magnetic levitation". However, in many papers, one can find the term magnetic levitation (maglev) [10,[25][26][27] instead of pseudo-magnetic levitation. The pseudo-maglev levitation harvesters are characterized by simplicity of their construction, lack of springs and dampers (not a physical spring that is easily worn out), therefore the time period of usage can be a very long.…”

Section: Pseudo-magnetic Levitation Harvestersmentioning

confidence: 99%

“…Usually, the Finite Element Method has been used to solve the differential equations that govern the dynamics of these systems. Then the magnetic forces, magnetic field distributions are usually easy modelled [25,28]. Mann and Sims [26] presented a design for electromagnetic energy harvesting from the nonlinear oscillations of magnetic levitation.…”

Section: Pseudo-magnetic Levitation Harvestersmentioning

confidence: 99%

“…In the literature, different models of α can be found [25,34,35]. Generally, this parameter depends on the coil design and is a function of the magnet's position versus the coil [18,34].…”

Section: Mathematical Modelmentioning

confidence: 99%

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Theoretical and Experimental Investigations of a Pseudo-Magnetic Levitation System for Energy Harvesting

Kęcik

Mitura

2020

Sensors

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The paper presents an analytical, numerical and experimental analysis of the special designed system for energy harvesting. The harvester system consists of two identical magnets rigidly mounted to the tube’s end. Between them, a third magnet is free to magnetically levitate (pseudo-levitate) due to the proper magnet polarity. The behaviour of the harvester is significantly complicated by a electromechanical coupling. It causes resonance curves to have a distorted shape and a new solution from which the recovered energy is higher is observed. The Harmonic Balance Method (HBM) is used to approximately describe the response and stability of the mechanical and electrical systems. The analytical results are verified by a numerical path following (continuation) method and experiment test with use of a shaker. The influence of harvester parameters on the system response and energy recovery near a main resonance is studied in detail.

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Section: Pseudo-magnetic Levitation Harvestersmentioning

confidence: 99%

Section: Pseudo-magnetic Levitation Harvestersmentioning

confidence: 99%

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Theoretical and Experimental Investigations of a Pseudo-Magnetic Levitation System for Energy Harvesting

Kęcik

Mitura

2020

Sensors

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“…Besides, intelligent control algorithms can be developed to control the position of their components according to the excitations’ characteristics (for example, amplitude and frequency). Geometric optimization prior to fabrication and adaptive positional control of components cannot be accomplished using linear system models because they are not sufficient to adequately predict levitation-based energy harvesting, as such systems exhibit highly nonlinear behavior 20 21 . The Finite Element Method (FEM) has been used to solve the differential equations that govern the dynamics of these systems, taking into account effects such as the magnetic levitation forces between magnets and magnetic field (MF) distributions, etc.…”

mentioning

confidence: 99%

“…The Finite Element Method (FEM) has been used to solve the differential equations that govern the dynamics of these systems, taking into account effects such as the magnetic levitation forces between magnets and magnetic field (MF) distributions, etc. 21 22 23 24 . A combined approach using FEM and analytical or semi-analytical modeling has also been proposed 22 24 .…”

mentioning

confidence: 99%

Magnetic levitation-based electromagnetic energy harvesting: a semi-analytical non-linear model for energy transduction

Santos

Ferreira

Simões

et al. 2016

Sci Rep

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Magnetic levitation has been used to implement low-cost and maintenance-free electromagnetic energy harvesting. The ability of levitation-based harvesting systems to operate autonomously for long periods of time makes them well-suited for self-powering a broad range of technologies. In this paper, a combined theoretical and experimental study is presented of a harvester configuration that utilizes the motion of a levitated hard-magnetic element to generate electrical power. A semi-analytical, non-linear model is introduced that enables accurate and efficient analysis of energy transduction. The model predicts the transient and steady-state response of the harvester a function of its motion (amplitude and frequency) and load impedance. Very good agreement is obtained between simulation and experiment with energy errors lower than 14.15% (mean absolute percentage error of 6.02%) and cross-correlations higher than 86%. The model provides unique insight into fundamental mechanisms of energy transduction and enables the geometric optimization of harvesters prior to fabrication and the rational design of intelligent energy harvesters.

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Vibration‐Energy‐Harvesting System: Transduction Mechanisms, Frequency Tuning Techniques, and Biomechanical Applications

Dong

Closson

Jin

et al. 2019

Adv Materials Technologies

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Vibration‐based energy‐harvesting technology, as an alternative power source, represents one of the most promising solutions to the problem of battery capacity limitations in wearable and implantable electronics, in particular implantable biomedical devices. Four primary energy transduction mechanisms are reviewed, namely piezoelectric, electromagnetic, electrostatic, and triboelectric mechanisms for vibration‐based energy harvesters. Through generic modeling and analyses, it is shown that various approaches can be used to tune the operation bandwidth to collect appreciable power. Recent progress in biomechanical energy harvesters is also shown by utilizing various types of motion from bodies and organs of humans and animals. To conclude, perspectives on next‐generation energy‐harvesting systems are given, whereby the ultimate intelligent, autonomous, and tunable energy harvesters will provide a new energy platform for electronics and wearable and implantable medical devices.

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The modelling of an electromagnetic energy harvesting architecture

Cited by 42 publications

References 8 publications

Theoretical and Experimental Investigations of a Pseudo-Magnetic Levitation System for Energy Harvesting

Theoretical and Experimental Investigations of a Pseudo-Magnetic Levitation System for Energy Harvesting

Magnetic levitation-based electromagnetic energy harvesting: a semi-analytical non-linear model for energy transduction

Vibration‐Energy‐Harvesting System: Transduction Mechanisms, Frequency Tuning Techniques, and Biomechanical Applications

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