电力系统保护与控制
電力繫統保護與控製
전력계통보호여공제
POWER SYSTM PROTECTION AND CONTROL
2013年
14期
115-119
,共5页
李芷筠%戴志辉%焦彦军%王增平
李芷筠%戴誌輝%焦彥軍%王增平
리지균%대지휘%초언군%왕증평
继电保护%可靠性指标%基础数据%失效率函数%短期预测
繼電保護%可靠性指標%基礎數據%失效率函數%短期預測
계전보호%가고성지표%기출수거%실효솔함수%단기예측
protective relaying%reliability index%basic data%failure rate function%short-term forecast
针对目前继电保护系统可靠性评估过程中由于缺乏基础数据积累和必要挖掘而影响了评估结果可信度的问题,从继电保护系统可靠性及其基础数据的特点入手,设计实现了可靠性基础数据分析软件。软件在对原始数据进行预处理的基础上从不同角度进行立体分析,实现了多种可靠性指标的统计计算、失效率函数与可靠度函数等的回归分析以及设备可靠度的短期预测功能。其分析结果可为全面评估继电保护系统的可靠性、制定合理的检修策略等提供依据,对进一步掌握和提升保护系统可靠运行水平具有积极意义。
針對目前繼電保護繫統可靠性評估過程中由于缺乏基礎數據積纍和必要挖掘而影響瞭評估結果可信度的問題,從繼電保護繫統可靠性及其基礎數據的特點入手,設計實現瞭可靠性基礎數據分析軟件。軟件在對原始數據進行預處理的基礎上從不同角度進行立體分析,實現瞭多種可靠性指標的統計計算、失效率函數與可靠度函數等的迴歸分析以及設備可靠度的短期預測功能。其分析結果可為全麵評估繼電保護繫統的可靠性、製定閤理的檢脩策略等提供依據,對進一步掌握和提升保護繫統可靠運行水平具有積極意義。
침대목전계전보호계통가고성평고과정중유우결핍기출수거적루화필요알굴이영향료평고결과가신도적문제,종계전보호계통가고성급기기출수거적특점입수,설계실현료가고성기출수거분석연건。연건재대원시수거진행예처리적기출상종불동각도진행입체분석,실현료다충가고성지표적통계계산、실효솔함수여가고도함수등적회귀분석이급설비가고도적단기예측공능。기분석결과가위전면평고계전보호계통적가고성、제정합리적검수책략등제공의거,대진일보장악화제승보호계통가고운행수평구유적겁의의。
To improve the credibility of protection reliability assessment results affected by the lack of basic data accumulation and mining, statistical analysis software of protection reliability basic data is designed and accomplished based on the characteristics of protection systems. Basic data is analyzed from different aspects. Statistical calculation, regression analysis of failure rate function and short-term forecast of device reliability are accomplished based on data preprocess. The analysis results could supply reference for assessing protection reliability and deciding reasonable maintenance strategy, and have positive effects on further promoting the reliability operating level of protection systems. This work is supported by the Fundamental Research Funds for the Central Universities (No. 11MG38).