Flat-type permanent magnet linear alternator: A suitable device for a free piston linear alternator |
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| Authors: | Qing-feng Li Jin Xiao Zhen Huang |
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| Affiliation: | (1) MOE Key Laboratory for Power Machinery and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China |
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| Abstract: | We proposed the flat-type permanent magnet linear alternator (LA) for free piston linear alternators (FPLAs) instead of the tubular one. Using the finite element method (FEM), we compare these two kinds of LAs. The FEM result shows that the flat-type permanent magnet LA has higher efficiency and larger output specific power than the tubular one, therefore more suitable for FPLAs, and that the alternator design can be optimized with respect to the permanent magnet length as well as the air gap. |
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| Keywords: | Free piston (FP) Linear alternator (LA) Internal combustion engine (ICE) Finite element method (FEM) |
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