DocumentCode :
1395824
Title :
Model and Experimental Research on an Electromagnetic Vibration-Powered Generator With Annular Permanent Magnet Spring
Author :
Xiaoguang Yang ; Bo Zhang ; Jiangui Li ; Youhua Wang
Author_Institution :
Province-Minist. Joint Key Lab. of Electromagn. Field & Electr. Apparatus Reliability, Hebei Univ. of Technol., Tianjin, China
Volume :
22
Issue :
3
fYear :
2012
fDate :
6/1/2012 12:00:00 AM
Firstpage :
5201504
Lastpage :
5201504
Abstract :
This paper presents a new electromagnetic vibration-powered generator. The input-output mathematical model of an axial magnetization annular permanent magnet spring is built. Taking advantage of the model, the characteristic curve of the magnetic force versus the displacement is obtained. Wires were wound both inside and outside of the annular permanent magnet to form an inner coil and an outer coil, respectively. The characteristic curve of the magnetic force, the natural frequency, the output voltage waveforms of the outer coil and the inner coil, and the magnetic field distribution of the designed generator have been simulated using the Finite Element method (FEM). Tests results of the output waveforms have good agreement with the simulation results. The maximum output power of the designed vibration-powered generator is 28.3 mW, and the open circuit RMS voltage is 5.1 V at an vibration frequency of 20 Hz and an amplitude of 5 mm.
Keywords :
coils; electromagnetic devices; finite element analysis; permanent magnet generators; vibrations; FEM; axial magnetization annular permanent magnet spring; characteristic curve; electromagnetic vibration-powered generator; finite element method; frequency 20 Hz; inner coil; input-output mathematical model; magnetic field distribution; magnetic force; natural frequency; open circuit RMS voltage; outer coil; output voltage waveforms; power 28.3 mW; voltage 5.1 V; Coils; Generators; Magnetic flux leakage; Magnetic resonance; Permanent magnets; Springs; Electromagnetic vibration-powered generator; emf; magnet spring; permanent magnet;
fLanguage :
English
Journal_Title :
Applied Superconductivity, IEEE Transactions on
Publisher :
ieee
ISSN :
1051-8223
Type :
jour
DOI :
10.1109/TASC.2011.2179401
Filename :
6099679
Link To Document :
بازگشت