Abstract：Power flow transferring caused by overload lines removal is an important reason for cascading overload trips. By analyzing the features of flow transferring caused by overload removal, the conception of flow transferring factor (FTF) is introduced, a new definition of transmission section is given. According to the path feature of flow transferring. A new algorithm for fast searching transmission section is given. By converting the real-time power network into a topology, based on dynamic programming theory, it fast finds out the K shortest paths between the two nodes of the overload line in a subgraph with overload line as it’s center, finally finds out the transmission section suffered greatly from power flow transferring. The security analysis of the whole system is reduced to the analysis of a transmission section; the workload of further analysis is greatly reduced, so it’s very beneficial to avoid cascading overload trips.The simulation results of CEPRI 36-bus system show that the proposed algorithm is effective.
王增平, 李刚, 任建文. 基于前K最短路径的输电断面搜索新算法[J]. 电工技术学报, 2012, 27(4): 193-201.
Wang Zengping, Li Gang, Ren Jianwen. A New Search Algorithm for Transmission Section Based on K Shortest Paths. Transactions of China Electrotechnical Society, 2012, 27(4): 193-201.
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