Performance enhancement of an out-of-plane electret-based vibrational energy harvester with dual charged plates

Tao, Kai; Lye, Sun Woh; Miao, Jian; Hu, Xiao

doi:10.1088/1742-6596/557/1/012064

Cited by 1 publication

(2 citation statements)

References 7 publications

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“…Vibration-based energy harvesting, as one of the most promising research fields, has been established utilising electromagnetic generators [3], piezoelectric generators [4,5], MEMS-scale electrostatic generators [6], triboelectric [7,8] and magnetostrictive effects [9]. Figure 1 illustrates the means of energy harvesting mechanisms and their possible applications in the railway industry, adopted from [10][11][12][13][14][15]. However, the application of different energy harvesting systems depends on specific requirements, i.e., environmental conditions and physical constraints [16].…”

Section: Introductionmentioning

confidence: 99%

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Optimisation and Management of Energy Generated by a Multifunctional MFC-Integrated Composite Chassis for Rail Vehicles

Liu

Micallef

et al. 2020

Energies

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With the advancing trend towards lighter and faster rail transport, there is an increasing interest in integrating composite and advanced multifunctional materials in order to infuse smart sensing and monitoring, energy harvesting and wireless capabilities within the otherwise purely mechanical rail structures and the infrastructure. This paper presents a holistic multiphysics numerical study, across both mechanical and electrical domains, that describes an innovative technique of harvesting energy from a piezoelectric micro fiber composites (MFC) built-in composite rail chassis structure. Representative environmental vibration data measured from a rail cabin have been critically leveraged here to help predict the actual vibratory and power output behaviour under service. Time domain mean stress distribution data from the Finite Element simulation were used to predict the raw AC voltage output of the MFCs. Conditioned power output was then calculated using circuit simulation of several state-of-the-art power conditioning circuits. A peak instantaneous rectified power of 181.9 mW was obtained when eight-stage Synchronised Switch Harvesting Capacitors (SSHC) from eight embedded MFCs were located. The results showed that the harvested energy could be sufficient to sustain a self-powered structural health monitoring system with wireless communication capabilities. This study serves as a theoretical foundation of scavenging for vibrational power from the ambient state in a rail environment as well as to pointing to design principles to develop regenerative and power neutral smart vehicles.

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Section: Introductionmentioning

confidence: 99%

“…Illustration of energy harvesting applied to the railway industry, adopted from[10][11][12][13][14][15].…”

mentioning

confidence: 99%

Optimisation and Management of Energy Generated by a Multifunctional MFC-Integrated Composite Chassis for Rail Vehicles

Liu

Micallef

et al. 2020

Energies

View full text Add to dashboard Cite

show abstract

Performance enhancement of an out-of-plane electret-based vibrational energy harvester with dual charged plates

Cited by 1 publication

References 7 publications

Optimisation and Management of Energy Generated by a Multifunctional MFC-Integrated Composite Chassis for Rail Vehicles

Optimisation and Management of Energy Generated by a Multifunctional MFC-Integrated Composite Chassis for Rail Vehicles

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