中文摘要：

为证明人工蛛网结构在提高低压电力线通信网络可靠性方面具有的优势，应用结合马尔科夫概率论模型的因子分解法，对应用于低压电力线通信的单层人工蛛网结构进行全端可靠性的理论分析，与传统的树形、星形、环状网络进行对比，证明了单层人工蛛网网络结构的高可靠性。在此基础上对以单层人工蛛网为子网的组网结构进行全端可靠性分析，并与总线型、树形网络结构对比，进一步证明基于人工蛛网的组网方法的可行性。依据人工蛛网的特殊结构，制定了局部路由重构方法，并进行仿真实验，仿真结果证明了人工蛛网结构在提高低压配电网电力线通信网络的连通性、抗毁性和提高通信可靠性方面具有优势。

英文摘要：

To prove the advantages of artificial cobweb structure in improving the reliability of power-line communication in low-voltage distribution networks, using the techniques of Markov model combined with factoring theorem, the all terminal reliability of the structure based on artificial cobweb used in low-voltage power line communication （PLC） was calculated. The reliability of the structure based on artificial cobweb was highly improved compared with the networks in the shape of tree, star and ring. In the case of artificial cobweb as subnet, the all terminal reliability of the networking results was highly improved compared with bus type network and the network in the shape of tree. The feasibility of this networking method was further proved. Based on the structure of the artificial cobweb, the method of local routing reconstruction was presented. The simulation results proved that the artificial cobweb has advantage in improving the connectivity, anti-destroying ability and reliability of power line communication.