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A Novel PM-Free High-Speed Linear Machine With Amorphous Primary Core

机译：新型具有非晶主磁芯的无PM高速线性机床

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摘要

This paper proposes a novel dc-excited flux-modulated linear machine with a new primary structure for utilizing amorphous core. Although amorphous core is regarded as a good candidate in highly efficient electric machines, and is being investigated for decades, it has not been widely used in electric machines yet. The key challenge is the difficulty in slotting. For the new structure, the difficulty in slotting is avoided. Furthermore, the proposed machine is economical and has a robust double salient structure without any permanent magnets, and both single-toothed field and armature windings are located together in the primary core. By regulating the field excitation, the machine can operate at a wide speed range. Due to the low loss of amorphous core, this machine shows high efficiency at high speed.
机译：本文提出了一种新颖的直流励磁磁通调制线性电机，它具有利用非晶铁芯的新型主要结构。尽管非晶芯在高效电机中被认为是一个很好的候选者，并且已经进行了数十年的研究，但它尚未在电机中得到广泛使用。关键的挑战是分档的难度。对于新结构，避免了开槽的困难。此外，所提出的电机是经济的并且具有坚固的双凸极结构而没有任何永磁体，并且单齿场绕组和电枢绕组都一起位于初级铁芯中。通过调节励磁，电机可以在较宽的速度范围内运行。由于非晶铁芯损耗低，因此该机器在高速下显示出高效率。

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