Study on the Configuration Scheme of Fault Isolation Equipment in LVDC Systems

With the application of DC technology in transmission and distribution networks, the fault characteristics are different than AC, and the study of fault isolation equipment configuration scheme is conducive to improving the reliability of the system. In this paper, the short-circuit fault ride-throu...

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Bibliographic Details
Main Authors: Huang, Xinghua, Sheng, Shiyi, Fan, Yuanliang, Xu, Xidong, Zeng, Zhensong, Lin, Jianli, Li, Lingfei
Format: Conference Proceeding
Language:English
Subjects:
Circuit breakers
Circuit faults
DC breaker
Integrated circuit reliability
LVDC
Mathematical models
Protection
Protective relaying
reliability
Reliability engineering
Resistance
Routing
SCRT
Time-frequency analysis
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Summary:With the application of DC technology in transmission and distribution networks, the fault characteristics are different than AC, and the study of fault isolation equipment configuration scheme is conducive to improving the reliability of the system. In this paper, the short-circuit fault ride-through capacity and the fault removal process of fault isolation equipment in LVDC system are firstly analyzed. And then the effect of protection coordination under different fault isolation equipment configurations for inter-pole short-circuit faults on the DC side is analyzed, combined with the fault crossing of the converter. And a reliability calculation model is proposed, and the reliability of the actual system is calculated by MATLAB under different fault isolation equipment configurations. Finally fault isolation equipment configuration schemes corresponding to different reliability metrics are obtained by comparison.
ISSN:2834-8567
DOI:10.1109/ICPICS62053.2024.10796178