Design and analysis of a shoe-embeded power harvester based on magnetic gear

Yulong Liu; Weinong Fu; Wei Li; Mingui Sun

doi:10.1109/TMAG.2016.2521765

Design and analysis of a shoe-embeded power harvester based on magnetic gear

Yulong Liu, Weinong Fu, Wei Li, Mingui Sun

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

10 Citations (Scopus)

Abstract

This paper presents a shoe-sole-embedded power harvester which can extract power from walking to charge portable or mobile electronic devices. The core component of the design is a combination of a trans-rotary magnetic gear (TRMG) and a disk-type axial-flux permanent magnet (AFPM) generator. The key idea is to convert linear foot motion into rotation using the TRMG, so that the AFPM can be driven to generate electric power. The proposed energy harvester has a high power density due to its electromagnetic nature. Moreover, by integrating a TRMG, it eliminates the mechanical problems caused by the conventional transmission mechanisms, which also makes it compact in size. Besides introducing its structure and working principle, the design procedure is presented and its performance is analyzed using the finite-element method.

Original language	English
Article number	7393584
Journal	IEEE Transactions on Magnetics
Volume	52
Issue number	7
DOIs	https://doi.org/10.1109/TMAG.2016.2521765
Publication status	Published - 1 Jul 2016

Keywords

Finite element method
magnetic gear
permanent magnet
shoe generator

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

More information

10.1109/TMAG.2016.2521765

Cite this

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AB - This paper presents a shoe-sole-embedded power harvester which can extract power from walking to charge portable or mobile electronic devices. The core component of the design is a combination of a trans-rotary magnetic gear (TRMG) and a disk-type axial-flux permanent magnet (AFPM) generator. The key idea is to convert linear foot motion into rotation using the TRMG, so that the AFPM can be driven to generate electric power. The proposed energy harvester has a high power density due to its electromagnetic nature. Moreover, by integrating a TRMG, it eliminates the mechanical problems caused by the conventional transmission mechanisms, which also makes it compact in size. Besides introducing its structure and working principle, the design procedure is presented and its performance is analyzed using the finite-element method.

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Design and analysis of a shoe-embeded power harvester based on magnetic gear

Abstract

Keywords

ASJC Scopus subject areas

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