Impact of Resistive SFCLs on Supervising Elements in Transmission Line Protection

IF 1.8 3区物理与天体物理 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE Transactions on Applied Superconductivity Pub Date : 2025-02-17 DOI:10.1109/TASC.2025.3542346

Hangtian Lei;Brian K. Johnson

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Abstract

Power system transmission line protective relays are supervised by a number of elements to ensure the security and selectivity of protection decisions. Supervising elements are important for fault direction determination and they are typically designed based on the properties of sequence currents and voltages. Superconducting fault current limiters (SFCLs) could potentially affect the profiles of sequence currents and voltages, which could have further influence on the performance of supervising elements. This article is one of the first works that investigate the impact of resistive SFCLs on supervising elements in power system transmission line protection. A resistive SFCL and an electric power system are modeled in an electromagnetic transients simulation program. Single-line-to-ground faults are simulated on the transmission line. The acquired fault voltages and currents are processed by a transmission line impedance-based protective relay model to investigate the responses of supervising elements. The results are analyzed and discussed.

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电阻式sfcl对输电线路保护中监控元件的影响

电力系统传输线保护继电器由许多元件监督，以确保保护决策的安全性和选择性。监测元件对故障方向的确定非常重要，它们通常是根据序列电流和电压的特性设计的。超导故障限流器（SFCLs）可能会影响序列电流和电压的分布，进而影响监控元件的性能。本文是研究电阻性sfcl对电力系统输电线路保护中监控元件影响的首批工作之一。在一个电磁瞬变仿真程序中对一个电阻式SFCL和一个电力系统进行了建模。在传输线上模拟单线对地故障。采用基于传输线阻抗的保护继电器模型对采集到的故障电压和电流进行处理，研究监测元件的响应。对结果进行了分析和讨论。

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来源期刊

IEEE Transactions on Applied Superconductivity 工程技术-工程：电子与电气

CiteScore

3.50

自引率

33.30%

发文量

650

审稿时长

2.3 months

期刊介绍： IEEE Transactions on Applied Superconductivity (TAS) contains articles on the applications of superconductivity and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Large scale applications include magnets for power applications such as motors and generators, for magnetic resonance, for accelerators, and cable applications such as power transmission.