The Estimation of the Current Distribution on the HTS Cable by Measuring the Circumferential Magnetic Field
The Estimation of the Current Distribution on the HTS Cable by Measuring the Circumferential Magnetic Field
复制标题
通过测量圆周磁场估计高温超导电缆上的电流分布
DOI：
10.1109/tasc.2010.2042706
复制
发表时间：
2010
影响因子：
1.8
通讯作者：
T. Ko
中科院分区：
文献类型：
--
作者：
K. Sim;Seokho Kim;Seok;Jeonwook Cho;T. Ko
提出了一种估算高温超导电力电缆组成的高温超导股线上电流分布的方法。在高温超导电缆周围均匀布置一组霍尔传感器，用于测量超导电缆的周向磁场。电流分布可以通过求解包含测量的磁场值作为其元素的矩阵方程来计算。应该知道由每个霍尔传感器中的每个股线产生的磁场的贡献以求解矩阵方程。该贡献可以通过模拟HTS电缆的FEM分析来计算，或者可以使用复制的短HTS电缆来测量，该复制的短HTS电缆的电流端子被修改为独立地向每个股线施加电流。一个简单的计算机模拟进行了调查的可行性，该方法的性能特点进行了检查的高温超导电缆，这是由多个高温超导股。本文将介绍一种简单的估算电流分布的数学方法，以及用设计和制造的测量装置进行的实验结果。
A method for estimating the current distribution on the HTS strands which is composed of the HTS power cable was developed. A group of hall sensors which are well-arranged around the HTS cable were used in measuring the circumferential magnetic field. The current distribution can be calculated by solving a matrix equation which contains the measured magnetic field values as its elements. The contribution of the magnetic field generated by each strand in each hall sensor should be known to solve the matrix equation. The contribution can be calculated by FEM analysis simulating the HTS cable or can be measured using a duplicated short HTS cable of which current terminals are modified to apply the current to each strand independently. A simple computer simulation was performed to investigate the feasibility of the method and the performance characteristics of the method was examined for the HTS cable which is composed of several HTS strands. In this paper, a simple mathematics for estimating the current distribution and the results of experiment using the designed and manufactured measuring apparatus will be introduced.