Application of an Amorphous Core to an Ultra-High-Speed Sleeve-Free Interior Permanent-Magnet Rotor
Application of an Amorphous Core to an Ultra-High-Speed Sleeve-Free Interior Permanent-Magnet Rotor
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DOI：
10.1109/tie.2018.2807418
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发表时间：
2018-11-01
影响因子：
7.7
通讯作者：
Doppelbauer, Martin
中科院分区：
文献类型：
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作者：
Liu, Yingzhen;Ou, Jing;Doppelbauer, Martin
非晶材料的低磁芯损耗和高屈服强度对于超高速转子应用来说是有吸引力的特性。本文提出了一种用于超高速电机的创新型内置永磁同步转子，它充分利用了这些特性并消除了对套筒的需求。为了研究所提出的转子的可行性，首先测量非晶铁芯的电磁特性，然后讨论生产此类转子的挑战。然后，通过使用数值方法，评估具有非晶转子铁芯的示例电机的电磁、机械和热性能，并与具有硅钢转子铁芯的电机进行比较。通过材料的实验表征和示例电机的多物理场数值建模，表明非晶材料具有生产高功率密度超高速电机的巨大潜力。
The low core losses and high yield strength of amorphous materials are attractive properties for ultra-highspeed rotor applications. This paper proposes an innovative interior permanent-magnet synchronous rotor for ultra-high- speed motors, which takes full advantage of those properties and eliminates the need for sleeves. In order to study the feasibility of the proposed rotor, the electromagnetic properties of the amorphous core are first measured and the challenges for producing such rotors are subsequently discussed. Then, by using numerical methods, the electromagnetic, mechanical, and thermal performances of an example motor with an amorphous rotor core are evaluated and compared to those of a motor with a silicon steel rotor core. Through experimental characterization of the material and multiphysics numerical modeling of an example motor, it is shown that the amorphous material has great potential for producing high power density ultra-high-speed motors.