Routing Algorithm For Information Transmission In Neighborhood Area Network Towards To Smart Grid

Smart grid has become a common choice for global power industry to respond to future energy challenges,real-time and reliable access information is the basis of power flow,information flow and business flow highly integration.The neighborhood area network make data exchange between end-user in home area network and electricity units in wide area network,in order to meet the information exchange demand of smart grid management system providing efficient delivery route,is the key to information access network of smart grid.However,with the rapid development of the smart grid,power grid business demand has greatly changes,requiring higher quality of service,including real-time,reliability of information access.Therefore,researching on routing selection for information access of neighborhood area network has important theoretical and practical value.This thesis studies the development of smart grid,structure and characteristics of information access networks,introducts the key information access technologies of neighborhood area network,then analysis the access routing impact on quality of service such as real-time and reliability of power grid business information transmit.Based on this,we focus on the various types of routing algorithms and provide theoretical basis for putting forward effective information access routing algorithm of neighborhood area network.Aiming at the special needs of smart grid such as real-time and reliability for business information access,we use the strong global search capability of ant colony algorithm and simulated annealing algorithm strong local search ability proposed an ant colony-simulated annealing routing algorithm based on heuristic algorithms.This algorithm can achieve globally optimal solution with fast convergence and obtain a delay and packet loss rate guaranteed information access route,which can meet the QoS needs of power grid business information access;Then considering that a lot of business information transmit by smart meters which caused node load imbalance,in order to solve the problem of load balancing the load factor is introduced in the objective function and combined with initial pheromone variable parameter control and visibility variable parameter control which can effectively avoid network congestion,ensure the efficient of smart grid information access network.Simulation results show the effectiveness of the proposed algorithm.