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CN104463376A 一种基于CIM标准的电网连锁性事故灾害预测模型建模方法 无效 - 撤回

一种基于CIM标准的电网连锁性事故灾害预测模型建模方法
Abstract:
一种基于CIM标准的电网连锁性事故灾害预测模型建模方法，计算电网正常时的稳态潮流、临界状态潮流以及指标αij(p)，p＝0；选取故障，令p＝1；步骤30，计算p级故障的稳态潮流与临界状态潮流；判断是否有支路潮流越限或节点低电压，若有，则根据整定值切除负荷后返回步骤30，否则执行步骤50；步骤50，形成当前气象条件下高风险支路集合VH；判断VH中是否有覆冰率φij>0.7的支路，若是，则执行步骤70；否则计算所有支路的指标Cij(p+1)，选择Min{Cij(p+1)}的支路作为下级故障，并执行步骤90；步骤70，计算VH中每条支路的计算Cij(p+1)；选择Min{Cij(p+1)}的支路作为下级故障；步骤90，判定是否结束搜索，若是，则输出序列结果，否则返回步骤30。本发明给出了风险连琐性之间的关联影响。
Abstract(English):

Provided is a power grid chain accident disaster prediction model modeling method based on the CIM standard. The method comprises the steps that the steady-state power flow, critical-state power flow and index alphaij<(p)> of a power grid in normal running are calculated, and p=0; a fault is selected, and p=1; (30), the steady-state power flow and critical-state power flow of the p-grade fault are calculated; whether branch power flow exceeds the limit or a node is in low voltage or not is judged, if the branch power flow exceeds the limit or the node is in low voltage, the step (30) is repeated after loads are removed according to a set value, and otherwise the step (50) is executed; (50), a high-risk branch set VH under the current weather condition is formed; whether a branch with the icing rate phiij larger than 0.7 exists in VH or not is judged, and if yes, the step (70) is executed, and otherwise the indexes Cij<(p+1)> of all the branches are calculated, the branch of Min{Cij<(p+1)>}is selected as a lower-grade fault, and the step (90) is executed; (70), the Eij

, Bij

and alphaij of each branch in VH are calculated, Cij<(p+1)> is calculated, and the branch of Min{Cij<(p+1)>}is selected as the lower-grade fault; (90), whether searching is finished or not is judged, if yes, a sequence result is output, and otherwise, the step (30) is repeated. According to the method, the correlation influence between risk chains is provided.

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