变电站网络风暴故障案例的分析和处理

Analysis and Treatment of Network Storm Fault Cases at Substations

针对变电站网络风暴开展研究。首先分析了变电站网络风暴产生的机理,然后针对一起变电站网络风暴案例进行分析,以变电站网络拓扑分析为基础,逐步介绍网络风暴发生、分析和处理的过程,最后确定风暴源头是主变小室A网交换机。为减少网络风暴的发生,提出了网络风暴的预防建议,并给出了“分级隔离+ping+重启”的网络风暴快速定位、快速隔离和快速处理的标准方法,可尽快恢复网络正常,确保了变电站监控系统的安全稳定运行。

Substation network storm was studied in this paper.Firstly,the mechanism of network storm at substations was analyzed.Then,a case of substation network storm was discussed.Based on the topological analysis of substation network,the processes of occurrence,analysis and processing were introduced step by step.Finally,it was determined that the storm was attributable to the A-network switch in the main transformer room.In order to reduce the occurrence of network storm,proposals were made regarding the prevention of network storm.Furthermore,the“hierarchical isolation+ping+restart”approach was presented for quick location,isolation and processing of network storm.Thus,the network could be recovered to its normal state as soon as possible so as to ensure safe,stable operation of the monitoring system of the substation.