中文说明：
蚁群算法是一种用来在图中寻找优化路径的机率型算法。是一种求解组合最优化问题的新型通用启发式方法，该方法具有正反馈、分布式计算和富于建设性的贪婪启发式搜索的特点。通过建立适当的数学模型，基于故障过电流的配电网故障定位变为一种非线性全局寻优问题。
English Description：
Ant colony algorithm is a probabilistic algorithm used to find the optimal path in the graph. It is a new general heuristic method for solving combinatorial optimization problems, which has the characteristics of positive feedback, distributed computing and constructive greedy heuristic search. By establishing an appropriate mathematical model, the fault location of distribution network based on fault over-current becomes a nonlinear global optimization problem.