基于DiffServ网络实现变电站信息综合传输

Implementation of Integrative Information Transmission in Substation Based on the DiffServ Network

针对现有变电站信息综合传输方案的不足,提出了基于区分服务(DiffServ)网络的变电站信息综合传输的具体实现方案,通过为不同业务分配不同的每跳行为(PHB),综合运用优先级队列(PQ)调度策略、约定访问速率(CAR)流量整形和随机早期诊断(RED)队列管理技术共同实现。并且以某实际电力通信网络为例,采用网络仿真方法,对该方案的性能进行了定量评估。仿真结果验证了该方案的有效性和可行性。

In order to overcome the shortcomings of the several flow control methods for integrative information transmission in substation, the scheme of concrete implementation based on the differentiated services (DiffServ) network is proposed, in which the different PHBs (per-hop behaviors) are assigned for various message traffic, and the PQ (priority queueing) scheduling algorithm as well as the techniques of CAR (committed access rate) traffic shaping and RED active queue management are applied in the DiffServ network. Network simulator evaluation is employed to verify the performance of the scheme proposed. The case study of a typical substation model indicates the validity and feasibility of the scheme proposed by showing satisfactory simulation results.