CAJ | 학술논문

提出了一种基于低维度多环网块的潮流转移快速搜索方法。根据电力网络中各线路切除所产生影响的不同，运用图论的相关知识将整个网络分割成不同的组成部分，在对构成串并联连接关系的线路进行简化处理后，将其中的复杂多环网块构成部分转换成了低维度多环网块，为潮流转移的快速搜索创造了条件。在此基础上，根据潮流转移的路径特征，以开断线路所在的最小回路为基准，通过搜索其相应的分流路径段，快速准确地识别出了网络中存在过载风险的危险线路，很大程度上缩小了安全性分析的范围，对于连锁跳闸故障的预防具有积极作用。仿真结果验证了该方法的有效性和适用性。
제출료일충기우저유도다배망괴적조류전이쾌속수색방법。근거전력망락중각선로절제소산생영향적불동，운용도론적상관지식장정개망락분할성불동적조성부분，재대구성천병련련접관계적선로진행간화처리후，장기중적복잡다배망괴구성부분전환성료저유도다배망괴，위조류전이적쾌속수색창조료조건。재차기출상，근거조류전이적로경특정，이개단선로소재적최소회로위기준，통과수색기상응적분류로경단，쾌속준학지식별출료망락중존재과재풍험적위험선로，흔대정도상축소료안전성분석적범위，대우련쇄도갑고장적예방구유적겁작용。방진결과험증료해방법적유효성화괄용성。
This paper proposed a fast search method of flow transferring based on low-dimensional multi-loop network blocks.According to the peripheral impact of different lines removal, this method divided the transmission network in-to several blocks based on the theory of graph, and transformed the multi-loop complex network blocks into the low-di-mensional multi-loop network blocks by making a simplification for lines with series-parallel connection, thus laying a foundation for the fast search of flow transferring.On this basis, according to the path feature of flow transferring, it used the minimal loop containing the overload line as the baseline, accurately recognize risky lines that have risk of o-verload by searching the shunt path segment of the minimal loop.The security analysis of the whole system is reduced to the analysis of several transmission lines, so it’ s very beneficial to avoid cascading failure of power system.The simulation results verify the practicability and feasibility of the proposed method.