电力电缆由于其独特的优越性,在煤矿供电中被广泛地采用,但电缆故障也随之增多。以零序直流原理为基础建立了基于直流分量的电缆测距等效电路模型,免去了对复杂的交流量及其干扰的分析,大大简化了分析处理过程。通过MATLAB电力系统仿真软件建立了多分支电缆模型,并将仿真数据用于神经网络的训练;通过仿真验证了此测距策略的可行性和有效性。 Due to its unique advantages, power cables are widely used in coal mine power supply, but cable faults also increase. Based on the principle of zero-sequence DC, a cable ranging equivalent circuit model based on DC component is established, which avoids the analysis of complex AC and its interference and greatly simplifies the analysis and processing. The multi-branch cable model is established by MATLAB power system simulation software, and the simulation data is used for the training of neural network. The feasibility and effectiveness of this distance measurement strategy are verified by simulation.