摘要
电力通信网中对业务的可靠性保护占用过多的网络资源,通过研究智能电网业务的可靠性要求对网络资源利用率的影响,提出了一种基于区分可靠性保护环的生存性路由算法。在网络单链路失效条件下,以链路代价和链路失效概率为约束条件,通过寻找最小通路代价的保护环,使连接请求建立在满足失效概率要求和最小化通路代价的光通道上。仿真结果表明,所提算法提高了网络资源的利用效率,满足智能电网的可靠性需求,减少了网络资源的占用,性能优于传统方法。
The protections of services in power communication network occupy so many network resources. Through studying the influence of reliability requirements of smart grid services on the network resource utilization efficiency, the survival routing algorithm based on differentiated reliability protection ring is proposed. On the condition of a single link failure in the network and under the constraint of link cost and link failure probability, through finding a minimum cost path protection ring, the connection request is established on the light path which can satisfy the failure probability requirement and minimize the path cost. Simulation results show that the algorithm can improve the network resources utilization efficiency with meeting the reliability requirements of smart grid and reducing the occupying ratio of network resources, and the performance is better than that of traditional methods.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2011年第16期25-29,共5页
Power System Protection and Control
基金
中央高校基本科研业务专项资金(09QG02)
国家电网项目'新一代电力信息通信(ICT)网络模式研究'
关键词
智能电网
生存性
保护环
区分可靠性
路由算法
smart grid
survivability
protection ring
differentiated reliability （ DiR）
routing algorithm
