In the actual operation of the power system,it may be affected by various factors such as load changes,fault occur-rence,weather changes,etc.These factors lead to large-scale interconnection between power networks,which can quickly spread small-scale faults to the entire power network.In the process of identifying fragile lines,traditional methods have introduced weighted line intermediate index for the lines,forming a fragile line identification process,However,this method does not distinguish the im-portance of different lines,resulting in errors in route identification.Therefore,a hybrid frog jump algorithm based fragile line identi-fication method for power systems is proposed.Identify and distinguish non important and important lines in the power system through the DC power flow algorithm,conduct further vulnerability analysis on important lines,determine vulnerability indicators,and estab-lish a power system fragile line identification model;Using the update iteration function of the hybrid frog jump algorithm to solve the model,search for the optimal solution of the model,and thus achieve effective identification of vulnerable lines in the power system.The experimental results show that the proposed method effectively improves the accuracy and efficiency of fragile line identification while avoiding local optima.
关键词
脆弱线路辨识/直流潮流算法/脆弱指标/混合蛙跳算法
Key words
identification of fragile lines/DC power flow algorithm/vulnerability indicators/Hybrid Frog Jump Algorithm
维普
万方数据