基于ACO的低压电力线漏电抗干扰监测仿真

Simulation of Anti Interference Monitoring of Low Voltage Power Line Leakage Based on ACO

为避免电力线路异常漏电导致的电能浪费与人员伤亡等事故发生,提出基于ACO的低压电力线漏电抗干扰监测。建立监测终端网络拓扑结构,选取监测设备;分析传统蚁群算法启发度因素、状态转移等相关规则,引入自适应机制减少信息素挥发系数的影响,提高算法收敛速度;分析方向因子选取原则,将其添加在状态转移规则中,减少蚁群无效搜索;设定初始化参数与迭代次数,判断蚂蚁当前节点是否为目标节点,如果是则表明寻路成功,在监测过程中能够避开干扰;设计信号采集流程与设备监测程序,将监测结果与设置阈值对比,完成抗干扰监测。仿真结果表明,上述方法监测到的电流波形与实际波形吻合度较高,提高漏电节点检出率。

This paper proposes ACO based low-voltage power line leakage anti-interference monitoring for avoiding power waste and casualties caused by abnormal leakage of power lines.Monitoring terminal network topology was established to select monitoring equipment. The heuristic factor and state transition of traditional ant colony algorithm were analyzed in detail. Adaptive mechanism was utilized to lower the influence of pheromone volatilization coefficient and improve the convergence speed of the algorithm. The direction factor selection principle was also analyzed, and the principle was introduced into the state transition rules to reduce the invalid search of ant colony. Initialization parameters and iterations were set to determine the target node of the current ant node. The ant’s current node was the target node, indicating that the path finding was successful, so that the interference can be eliminated. Signal acquisition process and equipment monitoring program were designed. The monitoring results were compared with the set threshold to complete the anti-interference monitoring.The simulation results show that the error between the current waveform monitored by the method and the actual waveform is small, thus improving the detection rate of leakage node.