Research Article
Fault Protection Method of Single-Phase Break for Distribution Network Based on Current Ratio Between Negative and Zero Sequence Current
@INPROCEEDINGS{10.1007/978-3-031-31733-0_7, author={Xiaohan Li and Tao Tang and Yu Zhou and Zhongyi Yang}, title={Fault Protection Method of Single-Phase Break for Distribution Network Based on Current Ratio Between Negative and Zero Sequence Current}, proceedings={Smart Grid and Innovative Frontiers in Telecommunications. 7th EAI International Conference, SmartGIFT 2022, Changsha, China, December 10-12, 2022, Proceedings}, proceedings_a={SMARTGIFT}, year={2023}, month={5}, keywords={Distribution network Zero sequence current Negative sequence current Single-phase break fault}, doi={10.1007/978-3-031-31733-0_7} }- Xiaohan Li
Tao Tang
Yu Zhou
Zhongyi Yang
Year: 2023
Fault Protection Method of Single-Phase Break for Distribution Network Based on Current Ratio Between Negative and Zero Sequence Current
SMARTGIFT
Springer
DOI: 10.1007/978-3-031-31733-0_7
Abstract
To solve the identification problem of single-phase break fault with power-side grounding (SPBF-PG) and single-phase break fault with load-side grounding (SPBF-LG), a protection method of single-phase break for distribution network is proposed, which is based on current ratio between negative and zero sequence current. The variation characteristics of sequence current of SPBF-PG and SPBF-LG are analyzed by using compound sequence network. Then the protection criterion of negative-zero sequence current amplitude ratio is constructed. This paper presents a new protection method for single-phase break fault (SPBF) which is not affected by line break location, load variation and transition resistance. The method is verified to be correct by simulation.
