Risk Balancing Routing Optimization Mechanism Based On Power Commu-Nication Services Characteristics

With the continuous expansion of the scale of power communication network,the power communication network will evolve toward the direction of smart grid.In the meantime,more and more services are carried on the power communication network.The information transmission and synergy among the system networks have become more and more complicated,which leads to a series of problems of increased risk and path congestion.Considering the fault is random and frequent,and the shortest path selection mechanism will cause a large number of services to be allocated to some links and lead to uneven distribution of risks,in order to ensure the safe and stable operation of the power grid,it is necessary to take the risk equilibrium factors into consideration.Research on route optimization of power and telecommunication services will be more practical and in line with the production and maintenance needs.In addition,there are many kinds of business in the power communication network.For multi-type multi-service scenarios,how to select different types of services in a comprehensive and reasonable manner,analyze the service characteristics and design evaluation indexes to make the calculation of business importance more scientific is an urgent problem.For example,real-time control signal services such as line protection services and secure control services are core services in the power communication network with high real-time delay requirements and low bit error rate.Therefore,how to efficiently and reasonably distribute the limited links and equipment resources in the existing network on the premise of ensuring the balance of business characteristics and risks at the same time is extremely important.The main contributions of this article are as follows:(1)In order to realize the route optimization of power communication service based on business characteristics,this paper creatively subdivides the application scenario into two modules,which are multi-type multi-service and single-type multi-service respectively.According to the analysis of multi-type business characteristics,the paper introduces analytic hierarchy process and improves it to construct the importance evaluation model.It also puts forward some indicators and operation formulas such as the overall network risk degree and the overall network risk balance,and then uses the improved K-Dijkstra algorithm to choose the alternative path.After those,it uses the maximum and minimum fairness constraint formula based on risk equilibrium for optimal solution screening.Finally,simulation shows that the proposed mechanism can reduce the overall network risk balance by 30%-40%,thus verifying that the mechanism can achieve trade-off and ensure the synergistic optimization of risk balance and multi-type business importance.(2)In the case of single type multi-service scenario,in order to solve the problem of self-constraint and risk-balanced collaborative optimization,this paper chooses real-time production control signal service as a typical example,and analyzes its service characteristics,and concludes multi-objective constraint equations.Then it standardizes the risk equilibrium routing optimization model based on real-time delay.So that a routing optimization mechanism is designed based on co-evolution and adaptive fuzzy genetic methods to simulate the drawbacks of the evolutionary genetic algorithm.Finally,the experimental simulation shows that the mechanism can solve the drawbacks of premature convergence of the basic algorithm under the constraints of real-time delay threshold,and effectively optimize the delay performance and risk balance performance.