选取大庆油田110 kV和35 kV电压等级的电网,选择ERSI的MapObjects组件,利用C#进行集成二次开发后建成的系统,对建模后的电网选择初始故障,从而得到可能发生连锁故障的线路组成的关键输电断面.同时进行潮流分析,根据故障树理论建立大庆油田电力系统连锁故障的故障树结构;求取导致连锁事件的最小割集;求取连锁事件的发生概率;确定连锁事件的发展模式.为大庆油田电网的安全运行提供了有力参考依据.%110 kV and 35 kV voltage class Grid from Daqing oil-field Grid are selectsed, used Map Objects components of ERSI and utilized the system which constructed by integrate secondary development with C# to select initial failure for the modeling Grid, accordingly gets the key transmission cross-section, which is formed from potential cascading failure lines. Conduct power flow analysis, on the basis of fault tree theory, fault tree hierarchy of cascading failure of Daqing oil-field power system is establish; The Minimum cutset conducting cascading events is solved; then the probabihty of occurrence of cascading event, inform the development of event is caculated. The result can afford the powerful evidence to the safe operation of Daqing oil-field network.
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