REBCO-CORC电缆传输交流损耗对载流波形的依赖性

doi:10.12066/j.issn.1007-2861.2732

摘要/Abstract

摘要： 由高温超导涂层导体制成的圆芯导体(conductor on round core,CORC)电缆因具有高载流、高灵活性,被认为是电力应用中最有前途的电缆架构之一.阻碍CORC电缆大规模应用和发展的主要因素是高昂的制造成本和冷却成本,后者归因于交流损耗.在实际电磁环境中,电力设备的快速开关瞬态过程及无源元件(电容、电感)的非线性特性会引发电网谐波畸变,导致超导带材承载非正弦电流.不同传输电流波形和电缆拓扑结构会对交流损耗产生影响,然而载流波形对CORC电缆传输交流损耗的调制作用尚不明晰.基于H方程,全面探究了载流波形及其频率对不同层数高温超导CORC电缆交流损耗的作用规律,为CORC电缆的低损耗波形设计、高频应用及多层结构调控提供了有价值的参考.

关键词: 交流损耗, 圆芯导体(conductor on round core,CORC)电缆, 非正弦电流

Abstract: Conductor on round core (CORC) cables, made from high-temperature superconducting coated conductors, are considered one of the most promising cable architectures for power applications due to their superiority in current capacity and flexibility. The main factors hindering the large-scale application and development of CORC cables are high manufacturing costs and cooling costs, the latter of which is attributed to AC loss. In actual electromagnetic environments, the rapid switching transient process of power equipment and the nonlinear characteristics of passive components (capacitors and inductors) can cause harmonic distortion in power grids, resulting in superconducting tapes carrying non-sinusoidal current. Different transport current waveforms and cable topologies influence AC loss. However, the modulation effect of current waveforms on the transport AC loss of CORC cables is not yet clear. Based on the H equation, this paper comprehensively explores the effect of current waveforms and their frequencies on the AC loss of high-temperature superconducting CORC cables with different layers, providing valuable references for the design of low-loss waveforms, high-frequency applications, and multi-layer structure regulation of CORC cables.

Key words: AC loss, conductor on round core (CORC) cables, non-sinusoidal current

中图分类号:

O469

崔晓彤, 李文皓, 周迪帆, 李敏娟, 蔡传兵. REBCO-CORC电缆传输交流损耗对载流波形的依赖性[J]. 上海大学学报(自然科学版), 2026, 32(4): 628-640.

CUI Xiaotong, LI Wenhao, ZHOU Difan, LI Minjuan, CAI Chuanbing. Dependency of transport AC loss in REBCO-CORC cables on current waveform[J]. Journal of Shanghai University（Natural Science Edition）, 2026, 32(4): 628-640.

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REBCO-CORC电缆传输交流损耗对载流波形的依赖性

Dependency of transport AC loss in REBCO-CORC cables on current waveform

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