Title :
A flat linear generator with axial magnetized permanent magnets with reduced accelerative force for backpack energy harvesting
Author :
Yang, Zhi ; Khaligh, Alireza
Author_Institution :
Electr. & Comput. Eng. Dept., Illinois Inst. of Technol., Chicago, IL, USA
Abstract :
This paper presents a flat linear generator with axial magnetized permanent magnets for backpack energy harvesting. Finite Element Analysis (FEA) is carried out to investigate the electromagnetic characteristic. An electro-mechanical model based on the linear generator is built. It has been demonstrated that, under the walking frequency of 1.95 Hz, the backpacker carrying a 25 Kg pack can employ this 3.25 Kg generator to harvest 7.2 W power. Moreover, 30% of the peak accelerative force is eliminated for the backpacker.
Keywords :
energy harvesting; finite element analysis; linear motors; permanent magnet generators; FEA; axial magnetized permanent magnets; backpack energy harvesting; electro-mechanical model; electromagnetic characteristic; finite element analysis; flat linear generator; peak accelerative force; power 7.2 W; reduced accelerative force; Equations; Forging; Generators; Gravity; Permanent magnets; Stators; Energy harvesting; Linear generator; Load relief;
Conference_Titel :
Applied Power Electronics Conference and Exposition (APEC), 2012 Twenty-Seventh Annual IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4577-1215-9
Electronic_ISBN :
978-1-4577-1214-2
DOI :
10.1109/APEC.2012.6166180
