Route Optimization Method For Power Communication Private Network Based On Risk Balance

The power communication private network is the carrier of the smart grid,and its importance of real-time and reliability is self-evident.Route optimization is an effective way to reduce network risk and improve network reliability without changing the network topology.At present,the index system considered in the research of route optimization is too simple,which may cause the traffic distribution in the channel segment to be unbalanced,which further leads to an increase in the overall risk of the channel segment and the network.At the same time,some studies did not consider the concept of services importance,ignoring the differences and particularities between different services in the power communication private network.This paper takes risk balanced as the entry point,constructs the risk assessment model of the power communication private network and proposes the route optimization strategy.The routing method can ensure the security and stability of the power communication private network and ensure the quality of service of the user.This paper focuses on routing optimization for two application scenarios in the power communication private network to solve the problem of security,stability and reliability in the power communication private network.details as follows:Aiming at the risk assessment under the normal operation state of power communication private network,a route optimization method based on service importance for power communication private network is proposed.Firstly,the importance of the power communication private network service carried by the dedicated line channel is analyzed by the entropy weight TOPSIS method.Secondly,the risk assessment model under normal conditions is constructed by quantifying the node risk value and the link risk value as the risk assessment indicators.Through Yen algorithm constructs the shortest path set,and selects the optimal route from the constructed shortest path set by setting the sum of the standard deviation of the node and link balance as the optimal route.Finally,the effectiveness and correctness of the method is verified by simulation,which can better avoid network risks.Aiming at the risk assessment under the fault condition of power communication private network link,a routing optimization method based on improved genetic algorithm for power communication private network is proposed.Firstly,the cross-space risk propagation mechanism under the strong coupling characteristics of power grid and communication network is analyzed.Secondly,the risk index system is constructed by three indexes:grid site load pressure,business average communication delay and business risk balance,and the fault state risk assessment model is constructed.The risk assessment model is followed by a multi-objective solution through improved genetic algorithm,and the optimal solution is found through multiple iterations.Finally,the effectiveness of the route optimization method is verified by setting the comparison algorithm.In summary,the route optimization method proposed in this paper can effectively avoid and reduce the risks existing in the network,complete the risk balance of the services in the power communication private network,and thus ensure the safe,stable and reliable operation of the power communication private network.