定子
转子(电动)
材料科学
电磁线圈
同步电动机
感应电动机
旋转(数学)
超导电性
超导电机
扭矩
鼠笼式转子
通用电动机
交流电动机
物理
电气工程
凝聚态物理
电压
计算机科学
超导磁储能
超导磁体
热力学
工程类
人工智能
作者
Taketsune Nakamura,Yuichi Yamada,Hiroaki Nishio,Kazuhiro Komori,M. Sugano,Naoyuki Amemiya,T. Wakuda,Miyoshi Takahashi,Masaji Okada
标识
DOI:10.1088/0953-2048/25/1/014004
摘要
In this paper, a fundamental study of the rotating characteristics of a induction/synchronous motor by use of superconducting MgB2 cage windings is carried out based on analysis and experiment. Current transport properties of the produced monofilamentary MgB2 wires are firstly characterized, and then utilized for the determination of the current carrying capacity of the rotor bars. Then, the motor model is designed and fabricated with the aid of conventional (copper) stator windings. We successfully observe the synchronous rotation of the fabricated motor at a rotation speed range from 300 to 1800 rpm. We can also realize an almost constant torque versus speed curve, and this characteristic is explained from the steep take-off of the electric field versus the current density curve, based on the nonlinear electrical equivalent circuit. These results are promising for the practical applications of a high efficiency motor for a liquid hydrogen circulation pump.
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