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http://dx.doi.org/10.5762/KAIS.2017.18.1.688

Characteristic Analysis of Permanent Magnet Linear Generator by using Space Harmonic Method  

Seo, Seong-Won (Dept. of Electrical Eng., Chungnam National University)
Choi, Jang-Young (Dept. of Electrical Eng., Chungnam National University)
Kim, Il-Jung (Division of Mechanical Eng., Hoseo University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.18, no.1, 2017 , pp. 688-695 More about this Journal
Abstract
This paper deals with characteristics analysis of a permanent magnet (PM) linear generator using analytical methods for wave energy harvesting. The wave energy is carried out from the movement of a yo-yo system. A linear generator using permanent magnets to generate a magnetic force itself does not require a separate power supply and has the advantage of simple maintenance. In addition to the use of a rare earth, a permanent magnet having a high-energy density can be miniaturized and lightweight, and can obtain high energy-conversion efficiency. We derived magnetic field solutions produced by the permanent magnet and armature reaction based on 2D polar coordinates and magnetic vector potential. Induced voltage is obtained via arbitrary sinusoidal input. In addition, electrical parameters are obtained, such as back-EMF constant, resistance, and self- and mutual-winding inductances. The space harmonic method used in this paper is confirmed by comparing it with finite element method (FEM) results. These facilitate the characterization of the PM-type linear generator and provide a basis for comparative studies, design optimization, and machine dynamic modeling.
Keywords
Armature Reaction; Energy Harvesting; FEM; Linear Generator; Permanent Magnet; Space Harmonic Method;
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Times Cited By KSCI : 1  (Citation Analysis)
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