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This is a In Vitro Study study (also classified as: Observational).

August 17, 2025Open Access

Key technologies for reducing faults in medium-voltage distribution lines

JLJuan LuoHunan University of Traditional Chinese Medicine SLShijie LiuTianjin University YXYuhao XieNortheast Electric Power University

Key Points

Fault rates in medium-voltage lines reduced by 37.6%, leading to improved power supply reliability.
Prediction accuracy improves to 92.3% through LSTM and BP algorithms for fault detection and management.
Real-time monitoring enables line temperature tracking using optical backscattering technology, aiding in fault warnings.
Fast isolation technology in solid-state circuit breakers cuts off fault lines within 85 milliseconds, enhancing response time.

Abstract

Abstract This paper constructs a fault prevention and control system for distribution networks by integrating multi-source data perception and intelligent algorithms. Through refined modeling and optimization using wavelet transforms, the positioning error is stably controlled within 200 meters. By combining the advantages of LSTM and BP algorithms, the prediction accuracy reaches 92.3%. Based on the principle of optical backscattering, the system enables real-time monitoring of line temperature for fault warnings. The paper also explains the fast isolation technology of solid-state circuit breakers, which can cut off fault lines within 85 milliseconds in coordination with monitoring devices. Simulation results using PSCAD/EMTDC and pilot tests in Guangdong demonstrate that this system significantly reduces medium-voltage line fault rates by 37.6%, improving power supply reliability.

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