中压配电网电力线载波通信组网优化方法*

为进一步完善中压配电网电力线载波通信(PLC)组网的灵活性和可靠性,在结合中压配电网的实际拓扑结构和信道环境的基础上,提出了一种基于遗传算法的PLC组网方法。该方法综合考虑了节点间实际距离、节点间链路衰耗、连接节点衰耗、节点自身价值及链路价值等因素,利用遗传算法计算网络的最大价值函数,确定网络的最佳链路集。在最佳链路集基础上,求取各通信节点的节点度,将节点度数值较大者作为网络的中继节点,进而完成配电网PLC的优化组网。与蚁群路由算法相比,文中算法考虑了配电网的实际拓扑结构与信道特性,中继节点和链路分配更为合理,使PLC网络具有更高的网络价值和网络传输效率。

Optimization method of PLC communication network in medium voltage distribution network

In order to improve the flexibility and reliability of power line carrier (PLC) communication networking in medium voltage distribution network, based on the actual topology of the medium voltage distribution network and the channel environment, a method of PLC networking based on genetic algorithms is proposed. This method comprehensively considers factors such as the actual distance between nodes, the link loss between nodes, the connection node loss, the node"s own value, and the link value. The genetic algorithm is used to calculate the maximum value function of the network and determine the optimal link set of the network. Based on the optimal link set, the node degree of each communication node is calculated, and the higher node degree value is used as the relay node of the network, and then the PLC network of the distribution network is optimized. Compared with the ant colony routing algorithm, the algorithm considers the actual topology and channel characteristics of the distribution network, the relay node and link allocation are more reasonable, which makes the PLC network have higher network value and network transmission efficiency.