Integration of superconducting fault current limiter with solid-state DC circuit breaker
Integration of superconducting fault current limiter with solid-state DC circuit breaker
复制标题
超导故障限流器与固态直流断路器集成
DOI：
10.1016/j.ijepes.2022.108630
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发表时间：
2023
影响因子：
5.2
通讯作者：
Xi J
中科院分区：
文献类型：
--
作者：
Xi J
电动飞机的机载直流系统在发生短路故障时，可能面临高达数十倍额定电流的严重故障电流。限制故障电流并在几毫秒内清除故障是防止对直流系统造成损害的关键。提出了一种采用阻性超导故障限流器（SFCL）和固态直流断路器（SSCB）来管理直流短路故障的保护方法，并进行了实验验证。设计并测试了一种采用两种连接方式实现低电感和高电感的SFCL双线线圈样机，将故障电流从2000 A大幅降低到1000 A以下。研究了高、低电感SFCL与固态直流断路器集成时的性能。研究发现，当SFCL与SSCB集成时，在电流中断测试中，高电感SFCL会产生高电压。在可靠性和耐用性方面，低电感SFCL优先与SSCB集成。实验结果表明，低电感SFCL可以有效地保护直流系统免受严重故障电流的影响，然后SSCB可以快速可靠地中断1000 a的故障电流©2017 Elsevier Inc.。版权所有。
The onboard direct current (DC) system in electric aircraft could face a severe fault current, which is tens of times the nominal current in a short-circuit fault. It is critical to limit the fault current and clear the fault within a few milliseconds to prevent any damage to the DC system. A protection method using a resistive superconducting fault current limiter (SFCL) with a solid-state DC circuit breaker (SSCB) to manage the DC short-circuit fault is proposed and experimentally verified. A bifilar SFCL coil prototype with two types of connection to achieve low and high inductance is designed and tested, which reduces the fault current considerably from 2000 A to below 1000 A. The performance when integrating the low and high inductance SFCL with a solid-state DC circuit breaker are investigated. It is found that when integrating the SFCL with the SSCB, a high voltage is induced across the high inductance SFCL during current interruption tests. In terms of reliability and durability, the low inductance SFCL is preferred to integrate with the SSCB. The experimental results show that the low inductance SFCL can be an effective solution to protect the DC system from severe fault currents and then SSCB can rapidly and reliably interrupt the fault current at 1000 A.© 2017 Elsevier Inc. All rights reserved.