基于蚁群算法的低压配电网电力线通信组网方法

Method of Constructing Power Line Communication Networks Over Low-voltage Distribution Networks Based on Ant Colony Optimization

低压配电网通信可靠性严重限制了电力线通信实际应用规模。解决这一问题的一个关键技术在于在现有的电磁兼容(electromagnetic compatibility,EMC)、信噪比、编解码方式等条件下,寻找有效的低压配电网电力线通信自动组网和快速网络恢复以及提高其抗毁性的方法。该文详细地分析了典型低压配电网物理拓扑结构和特点,给出了低压配电网通信仿真拓扑模型,提出了一种适用于未知建筑物电力线拓扑结构条件下的蚁群电力线组网方法;在此基础上,通过仿真试验验证了该组网路由算法的有效性和抗毁性。该研究工作为低压配电网环境下的窄带电力线通信组网提供了一种通用而有效的方法。

Reliability of power line communication （PLC） over low-voltage network （LVN） limits badly the application scale of PLC in practice. In order to solve this problem under conditions of available EMC and signal-to-noise ratio （SNR） and encoded/decoded mode and so on, key factor is to look for effective method which can be applied to constructing power line communication networks automatically and resuming operation after failure of communicating and advancing capability anti-destruction of networks. In this paper, typical physical topology and its characteristics of low-voltage network are analyzed in detail, topology model of power line communication over low-voltage network is given for simulation, and the means based on Ant Colony Optimization（ACO） is put forward, which is used to construct the power line communication networks without any available information of power line wiring in a building On the basis of these, the effect and anti-destruction means are analyzed and tested by emulating experiments. This research work will provide general and effective method of narrow-band power line communication over low-voltage network.