浙江电力2024，Vol.43Issue(1)：99-107,9.DOI:10.19585/j.zjdl.202401012
电阻型直流故障限流器的冲击特性研究
A study on the impact characteristics of resistive-type DC fault current limiter
摘要
Abstract
DC fault current limiters can rapidly restrict the rise of fault currents,but attention needs to be paid to their dynamic current-limiting characteristics during fault impact.To address this,a study on the fault impact char-acteristics of a resistive-type current limiter is conducted.Firstly,mathematical expressions for the DC voltage and the withstandable fault current before and after the limiter is connected are theoretically analyzed and derived.Sub-sequently,a high-current DC impact platform is established,and a laboratory prototype of the current limiter is de-veloped.A limiter model is built on the MATLAB/Simulink platform to conduct simulation analysis of the impact characteristics.Finally,high-current impact tests are performed on the resistive-type current limiters with single-coil and multi-coil parallel structures.Simulation and experimental results indicate that with increasing fault im-pact,the limiters'resistance rises more rapidly and to a greater extent after reaching the critical limits,resulting in a more effective current-limiting performance.Additionally,at lower impact voltages,the current-limiting resistance exhibits a rapid rise followed by a decrease trend.关键词
柔性直流输电/故障限流器/短路故障/失超电阻/故障冲击Key words
VSC-HVDC/fault current limiter/short circuit fault/quenching resistance/fault impact引用本文复制引用
赵紫辉,黄辉,陆红斌,王娟,甄宝,任兴旺,张翀..电阻型直流故障限流器的冲击特性研究[J].浙江电力,2024,43(1):99-107,9.基金项目
中国南方电网有限责任公司科技项目(GDKJXM20198265) （GDKJXM20198265）
