考虑全局风险均衡度的电力通信网最优安全链路选择方法

Optimal Security Link Configuration Method of Power Communication Network Considering Global Risk Balance

在智能电网环境下,电力通信网全新的运行管理模式需要系统间频繁的进行工作协同和业务传递,产生了信息传输链路选择的风险问题.因此,研究如何降低电力通信网业务通道风险,设计最优的通信业务安全链路选择方法,已成为领域内研究的热点问题.提出了一种新的考虑全局风险均衡度的电力通信网最优安全链路选择方法,即考虑了传输链路的最短性,又根据业务重要级别兼顾了路由选择的安全性.首先,给出了电力通信网业务安全链路选择模型,对业务安全链路选择问题进行了描述和数学建模;然后,采用模糊层次分析法(FAHP)构建了业务重要度评价和排序模型;最后,利用改进的迪杰斯特拉(Di.jkstra)算法和粒子群优化(PSO)算法对多目标优化问题进行了求解,计算出最优安全链路.仿真实验结果表明,所提方法可有效降低电力通信网的全局风险,具有一定的可用性和实效性.

Under the smart grid environment,the new operation and management mode of electric power communication network requires frequent work cooperation and business transmission between systems,which results in intensive information transmission problems.Therefore,the study of security link configuration methods to reduce the risk of electric power communication network business channel has become a hot issue in the field.This paper presents a new optimal security link configuration method of electric power communication network considering global risk balance.Firstly,the business security link configuration model of electric power communication network is given,and the business security link configuration problem is described and mathematically modeled.Then,the fuzzy analytic hierarchy process(FAHP)is used to construct the business importance degree evaluation and ranking model.Finally,the improved Dijkstra algorithm and PSO algorithm are used to solve the multiobjective optimization problem,and the optimal security link is configured.The simulation experimental show that the proposed method can effectively reduce the global risk equilibrium degree of electric power communication network,and has certain availability and effectiveness.