Fault location method of 66kv transmission line based on region search

Xiaoyu Liu; Fan Yang; Shiwei Yang; Hai Jiang; Qi Cheng; Zheng Li

doi:10.1117/12.2620747

29 November 2021 Fault location method of 66kv transmission line based on region search

Xiaoyu Liu, Fan Yang, Shiwei Yang, Hai Jiang, Qi Cheng, Zheng Li

Proceedings Volume 12080, 4th International Symposium on Power Electronics and Control Engineering (ISPECE 2021); 120804G (2021) https://doi.org/10.1117/12.2620747
Event: 4th International Symposium on Power Electronics and Control Engineering (ISPECE 2021), 2021, Nanchang, China

Abstract

The conventional transmission line fault location method has the problem of imperfect transient traveling wave mathematical model, resulting in large location error. A 66kV transmission line fault location method based on regional search is designed. The fault arc is divided according to the different arc power supply, the arc amplitude of 66kV transmission line is obtained, the operation data is processed synchronously, the fault information source is searched and identified in the region, the electrical quantity and its energy are redistributed, the transient traveling wave mathematical model is constructed, the signal three-phase voltage is collected, and the fault location mode is designed. Experimental results: the average location error between the 66kV transmission line fault location method and the other two 66kV transmission line fault location methods is 0.394%, 0.707% and 0.706%. It is proved that the 66kV transmission line fault location method combined with regional search is more suitable for power operation tasks.

Citation Download Citation

Xiaoyu Liu, Fan Yang, Shiwei Yang, Hai Jiang, Qi Cheng, and Zheng Li "Fault location method of 66kv transmission line based on region search", Proc. SPIE 12080, 4th International Symposium on Power Electronics and Control Engineering (ISPECE 2021), 120804G (29 November 2021); https://doi.org/10.1117/12.2620747

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