Advanced ac loss measurement methods for high-temperature superconducting tapes
Advanced ac loss measurement methods for high-temperature superconducting tapes
复制标题
高温超导带材的先进交流损耗测量方法
DOI：
10.1063/1.1367361
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发表时间：
2001
影响因子：
1.6
通讯作者：
H. Kate
中科院分区：
文献类型：
--
作者：
J. Rabbers;B. T. Haken;H. Kate
详细介绍了超导带的先进交流损耗测量方法，并在液氮温度为77 K的BSCCO/Ag （Bi2Sr2Ca2Cu3Ox with a Ag matrix）带上进行了演示。测量的目的是模拟电力应用中磁带导体的情况，如变压器线圈或电力电缆。在这类器件中，导体以交变传输电流供电，同时暴露在交变磁场中。在许多设备中，磁场矢量指向单一方向，但在某些设备中，如三相电力电缆和电动机，磁场围绕导体旋转。在上述所有情况下，使用带有拾取线圈和电压抽头的电磁方法来测量交流损耗。当磁场和输运电流同时存在时，该方法可以单独研究磁化损耗和输运电流损耗。磁损耗测量装置的设计与实现
Advanced ac loss measurement methods for superconducting tapes are described in detail and demonstrated on BSCCO/Ag (Bi2Sr2Ca2Cu3Ox with a Ag matrix) tapes in liquid nitrogen at 77 K. The aim of the measurements is to simulate the situation of a tape conductor in an electric power application like a transformer coil or a power cable. In this class of devices the conductor is fed with an alternating transport current and simultaneously exposed to an alternating magnetic field. In many devices the magnetic field vector points in a single direction but in some devices such as three-phase power cables and motors the magnetic field rotates around the conductor. In all cases described above an electromagnetic approach with pick-up coils and voltage taps is used to measure the ac loss. This method enables a separate study of magnetization loss and transport current loss when both the magnetic field and transport current are present simultaneously. The magnetization loss measurement setup for unidirectional and r...