电力系统保护与控制
電力繫統保護與控製
전력계통보호여공제
POWER SYSTM PROTECTION AND CONTROL
2014年
24期
36-43
,共8页
多属性评判%故障诊断%因果系数%故障量相关函数%模糊因果网络
多屬性評判%故障診斷%因果繫數%故障量相關函數%模糊因果網絡
다속성평판%고장진단%인과계수%고장량상관함수%모호인과망락
multi-attributes evaluation%fault diagnosis%causal coefficient%correlation function of fault%FCE-Nets
针对110 kV变电站故障诊断中非确定性因素较多和在线性要求高的特征，以实际110 kV变电站的保护信息为基础，根据保护的因果关系将设备分成设备故障、保护动作、开关跳闸或拒跳三类基础相关节点，结合设备家族缺陷、运行维护评价和状态检修评价三个属性指标，从而搭建多属性评估模型来确立模糊因果网络(Fuzzy Cause-Effect Networks, FCE-Nets)相关节点的因果系数。通过故障量相关函数完善遗漏的保护信息，提出基于多属性评判和FCE-Nets的变电站故障诊断方法。通过实际应用分析，对比现有方案的故障诊断结果，验证了此方法的有效性。
針對110 kV變電站故障診斷中非確定性因素較多和在線性要求高的特徵，以實際110 kV變電站的保護信息為基礎，根據保護的因果關繫將設備分成設備故障、保護動作、開關跳閘或拒跳三類基礎相關節點，結閤設備傢族缺陷、運行維護評價和狀態檢脩評價三箇屬性指標，從而搭建多屬性評估模型來確立模糊因果網絡(Fuzzy Cause-Effect Networks, FCE-Nets)相關節點的因果繫數。通過故障量相關函數完善遺漏的保護信息，提齣基于多屬性評判和FCE-Nets的變電站故障診斷方法。通過實際應用分析，對比現有方案的故障診斷結果，驗證瞭此方法的有效性。
침대110 kV변전참고장진단중비학정성인소교다화재선성요구고적특정，이실제110 kV변전참적보호신식위기출，근거보호적인과관계장설비분성설비고장、보호동작、개관도갑혹거도삼류기출상관절점，결합설비가족결함、운행유호평개화상태검수평개삼개속성지표，종이탑건다속성평고모형래학립모호인과망락(Fuzzy Cause-Effect Networks, FCE-Nets)상관절점적인과계수。통과고장량상관함수완선유루적보호신식，제출기우다속성평판화FCE-Nets적변전참고장진단방법。통과실제응용분석，대비현유방안적고장진단결과，험증료차방법적유효성。
To deal with the uncertain factors and high real-time performance, the elements of 110 kV substation is divided into three kinds of basic correlated nodes by the cause-effect relationship between delay protection equipments based on the protection information, the three kinds of basic correlated nodes are component fault, protection action and breaker tripping or refusing to trip. And then multiple attribute evaluation model is established to determine the causality intensity of associated nodes in FCE-Nets. The correlation function of electric parameters in failure is used to improve the missing information and checking mechanism. Finally, a substation fault diagnosis scheme is proposed based on multiple attribute evaluation and FCE-Nets. With the actual substation application analysis, the proposed scheme is compared with the existing method of fault diagnosis and the results verify the effectiveness of the scheme.
