基于PTN技术的配电通信网隔离度评估研究  

Research on isolation degree for distribution communication network based on PTN technology

作　　者：薛金[1] 余江[1] 常俊[1] 施继红[1] 练柱先[1] 

机构地区：[1]云南大学信息学院,云南昆明650091

出　　处：《电力系统保护与控制》2013年第16期60-65,共6页Power System Protection and Control

基　　金：国家自然科学基金项目资助(61162004);云南大学高校基金项目资助(2011YB19);云南省教育厅基金项目资助(2011C049)~~

摘　　要：针对PTN技术构建的智能配电通信网的隔离度的大小,提出了一种数学评估模型来评估智能配电通信网隔离效果。结合互信息的特征,利用事件X受到事件Y的影响所产生的变化率频率来评估信道之间的相关性,通过互信息的大小来反映隔离度。并在OPNET上对南方电网云南分公司的实验网络架构图进行仿真统计,利用此方法比较了PTN技术和二层交换机技术各自组网的隔离效果。实验的统计结果表明,所提方法在估计隔离度方面具有良好的可行性和有效性,为评估网络隔离提供了一种可量化的方法。Aiming at the isolation degree in distribution communication network based on PTN technology, this paper proposes a mathematical model to evaluate the effect of isolation in distribution communication network. The feature of mutual information, together with the change frequency generated by the influence of Y on X, is used to evaluate the correlation between channels, and the isolation degree is evaluated by the size of mutual information. This paper uses this method to calculate and compare the isolation degree of the PTN technology with that of layer 2 switch technology by simulating the test network architecture diagram of Yunnan Branch of China Southern Power Grid. The experiment results show that this method is feasible and effective, which provides a quantifiable method for evaluating the network isolation. This work is suDoorted bv National Nlnt, w^l ~; ~ ~^.：

关 键 词：隔离度 可量化 互信息 PTN OPNET 

分 类 号：TN915.853[电子电信—通信与信息系统]