高压电器2024，Vol.60Issue(5)：206-213,8.DOI:10.13296/j.1001-1609.hva.2024.05.026
新型变电站高压开关柜漏电火灾在线监测算法
Online Monitoring Algorithm for Leakage Fire of High-voltage Switchgear Cabinet in New Substation
摘要
Abstract
The online monitoring algorithm for leakage fire of new high voltage switchgear cabinet in substation has the phenomenon of incorrect collection of leakage data during the monitoring process.The completeness of fire infor-mation assessment is low,and the algorithm mechanism needs to be adjusted while monitoring,resulting in untimely warning and low monitoring accuracy.In response to this issue,online monitoring of leakage fires in the high voltage switchgear cabinet of the new substation is carried out.Firstly,leakage data is collected based on the leakage situa-tion of the switchgear cabinet,the leakage information is judged based on the residual current,and accurate leakage area data is captured in a timely manner.The D-S evidence theory fusion algorithm is used to online monitor the fire situation of the obtained leakage data,construct an identification framework,extract similarity functions,judge the temperature threshold at which the fire occurs and complete the overall monitoring study.It is known according to the analysis results that the online monitoring method has strong monitoring and warning accuracy.Under the same con-ditions,the temperature difference of the fire signal collection is 1℃,the overall false alarm rate of the system is 0.001%and the residual current is 310 mA.The method can effectively monitor leakage information and fire occur-rence and indicate its strong monitoring ability.关键词
变电站高压开关柜/开关柜漏电/漏电火灾/火灾在线监测/监测算法Key words
high voltage switchgear cabinet for substation/leakage of switchgear cabinet/leakage fire/online fire monitoring/monitoring algorithm引用本文复制引用
戴强,马顺青,冶海平,李寿,孙士升,王伟..新型变电站高压开关柜漏电火灾在线监测算法[J].高压电器,2024,60(5):206-213,8.基金项目
国网青海省电力公司科技项目资助(SGQHHDOOYJJS2100547). Project Supported by State Grid Qinghai Provincial Electric Power Company Technology Project Funding(SGQHHDOOYJJS2100547). （SGQHHDOOYJJS2100547）
