高温超导发电机的二维模型
Two-dimensional model of a high-Tc superconducting dynamo
摘要：
高温超导发电机能够低损耗无接触地将大直流电流泵入超导磁体线圈。我们提出了一个这样的设备的模型，并使用有效的数值方法计算的二维回路电流和电场中的薄超导定子带由电机转子安装永磁体。我们还发现在定子中产生的电压下的开路条件。结果表明，如果一个永磁体的长度是可比的或小于带宽度，在以前的作品中采用的一维模型可能是不准确的。
英文摘要：
High temperature superconducting dynamos are capable of low loss contactless pumping large dc currents into superconducting magnet coils. We present a model of such devices and use efficient numerical methods for computing the two-dimensional loop currents and electric fields induced in the thin superconducting stator strip by a dynamo rotor mounted permanent magnet. We find also the voltages generated in the stator under the open circuit conditions. It is shown that if the length of a permanent magnet is comparable to or smaller than the strip width, the one-dimensional model employed in the previous works can be inaccurate.
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