态势感知等新技术应用对变电站通信网络的影响

Cause Analysis and Countermeasure Study of Two Station Transformers Tripping Caused by Abnormal Ring Network at Low-voltage Side of Station Transformer

为应对日益复杂、严峻的网络安全形势,态势感知等新技术在变电站的应用越来越普遍,但是,态势感知装置的应用给站内设备带来了新的影响,首当其冲的是加重了远动装置、交换机的通信负担,尤其是对于老旧变电站。文章通过分析两起态势感知引起远动装置通信终端异常的典型缺陷及其处理过程,对态势感知引起站内通信异常的情况进行了总结,并提出了一些可行的解决措施。

From the case of simultaneous tripping of two station transformers,it is concluded that the abnormal ring network at the low-voltage side of the station transformer is the cause of tripping.Simulink is used for simulation verification,and the simulation results are consistent with the actual results.In view of the harm of abnormal ring network at low-voltage side of station transformer,three practical countermeasures are proposed.