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.
This work was supported by the National Natural Science Foundation of China (52207075).
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© 2023 ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering
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Li, X., Tang, T., Zhou, Y., Yang, Z. (2023). Fault Protection Method of Single-Phase Break for Distribution Network Based on Current Ratio Between Negative and Zero Sequence Current. In: Yang, H., Fei, J., Qiang, T. (eds) Smart Grid and Innovative Frontiers in Telecommunications. SmartGIFT 2022. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 483. Springer, Cham. https://doi.org/10.1007/978-3-031-31733-0_7
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DOI: https://doi.org/10.1007/978-3-031-31733-0_7
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