摘要
针对电力系统保护光传送网(OTN)通信网路由规划光层链路资源占用不均衡问题,提出一种电力系统保护OTN通信网路由均衡规划方法。首先,阐述了电力系统保护通信网的结构与业务需求;然后,在构建电力系统保护OTN通信网网络分层模型的基础上,量化电层和光层指标作为约束条件,提出了含传输时延、业务可靠性、电层资源占用率和光层资源占用率的路由均衡最优规划模型和模型求解方法;最后,实验验证了该规划方法的有效性。仿真结果表明,该规划方法可以避免高负载光层链路和光层节点的出现,降低了光层链路占用率标准差。
Aiming at the unbalanced occupation of optical layer link resources in optical transport network(OTN)communication network routing planning for power system protection,a routing equilibrium planning method of OTN communication network for power system protection is proposed.First,the structure and business requirements of the communication network of power system protection are elaborated.Then,based on building the hierarchical model of the OTN communication network for power system protection,the electrical and optical layer indices are quantified as constraints,and the optimal planning model for the routing equilibrium including transmission delay,service reliability,electrical layer resource occupancy rate,optical layer resource occupancy rate and the method for solving the model are proposed.Finally,the effectiveness of the planning method is verified through experiments.Simulation results show that the planning method can avoid the appearance of high-load links and nodes of optical layer,and reduce the standard deviation of link occupancy rate of the optical layer.
作者
林伟伟
陆俊
李疆生
徐志强
王赟
LIN Weiwei;LU Jun;LI Jiangsheng;XU Zhiqiang;WANG Yun(School of Electrical and Electronic Engineering,North China Electric Power University,Beijing 102206,China;State Grid Economic Technological Research Institute Co.,Ltd.,Beijing 102286,China;Economic and Technology Research Institute of State Grid Hunan Electrical Power Co.,Ltd.,Changsha 410004,China)
出处
《电力系统自动化》
EI
CSCD
北大核心
2020年第17期161-171,共11页
Automation of Electric Power Systems
基金
国家电网公司科技项目(SGXT0000ASJS1700054)
关键词
系统保护通信网
双路由
均衡规划
链路占用率
光传送网(OTN)
system protection communication network
dual routing
equilibrium planning
link occupancy rate
optical transport network(OTN)
