AC loss modelling and experiment of two types of low-inductance solenoidal coils
AC loss modelling and experiment of two types of low-inductance solenoidal coils
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DOI：
10.1088/0953-2048/29/11/115006
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发表时间：
2016-10
影响因子：
3.6
通讯作者：
Feixia Liang;W. Yuan;Min Zhang;Zhenyu Zhang;Jianwei Li;S. Venuturumilli;Jay Patel
中科院分区：
文献类型：
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作者：
Feixia Liang;W. Yuan;Min Zhang;Zhenyu Zhang;Jianwei Li;S. Venuturumilli;Jay Patel
低电感螺线管线圈，通常指不相交型和编织型，由于其快速恢复和低电感特性，已经被用于构建超导故障限流器。然而，尽管它们的使用，仍然没有系统的模拟工作，关于线圈的交流损耗特性的2G高温超导带材，可能是因为他们的复杂结构。本文提出了一种用H公式求解的二维轴对称模型来模拟这两种类型线圈的新方法。在仿真工作之后，对两种低电感螺线管线圈的交流损耗进行了数值和实验比较，验证了该模型在模拟无感线圈时的有效性。仿真结果表明，节距对两种线圈的交流损耗都有显著影响，而层间间距对编织型线圈的交流损耗有不同的影响。该模型为无感螺线管型SFCL的优化设计提供了有效的工具。
Low-inductance solenoidal coils, which usually refer to the nonintersecting type and the braid type, have already been employed to build superconducting fault current limiters because of their fast recovery and low inductance characteristics. However, despite their usage there is still no systematical simulation work concerning the AC loss characteristics of the coils built with 2G high temperature superconducting tapes perhaps because of their complicated structure. In this paper, a new method is proposed to simulate both types of coils with 2D axisymmetric models solved by H formulation. Following the simulation work, AC losses of both types of low inductance solenoidal coils are compared numerically and experimentally, which verify that the model works well in simulating non-inductive coils. Finally, simulation works show that pitch has significant impact to AC loss of both types of coils and the inter-layer separation has different impact to the AC loss of braid type of coil in case of different applied currents. The model provides an effective tool for the design optimisation of SFCLs built with non-inductive solenoidal coils.