基于快速密度聚类的电力通信网节点重要性评估

摘要

电力通信网的节点重要性评估是电力通信研究的一个重要议题。针对目前电力通信网节点重要性评估存在的连接权值单一以及评价指标单一等问题，利用电力通信网的带宽和距离作为权值，计算电力通信网节点的多种评价指标：节点强度、节点紧密度以及节点的介数。基于电力通信网节点的多种评价指标，利用快速密度聚类方法建立电力通信网的节点重要性评估模型，为电网通信的规划做支撑。通过快速密度聚类方法进行无监督的分类，将节点分为若干个重要性等级。该方法可以有效地改善基于距离的无监督分类方法的不足。利用某省的实际电网通信数据进行检验，验证了该方法在电力通信网中的实用性。%Node importance evaluation of electric power communication network is an important topic of power communication studies. For the problem of single connection weightsand single evaluation index,the bandwidthand the distanceof the electric power communication networkare used for the network's weight, computing the evaluating indicators of power communication network node, including joint strength, precision and node betweenness. Evaluation based on a variety of power communication network node andthe fast density clustering methodare usedto establish the importance of the assessment model for power node communication network, supporting for the planning of grid communications.Using unsupervised classification by fast density clustering method, the node is divided into several fragile levels. This method can effectively improve the unsupervised classification method.The actual data grid communicationsare tested to verify the usefulness of this method in electric power communication network.