智能变电站过程层网络性能测试与分析

Process level network performance testing and analysis in smart substation

在智能变电站网络性能测试中,目前主要依靠商用的网络测试仪来施加网络负载,而这种网络负载的数据内容和流量特点都与实际智能变电站的相应特点有一定的差别。为了弥补这些不足,在对实际智能变电站网络结构进行分析的基础上,搭建了500kV智能变电站过程层网络测试系统。该测试系统不仅覆盖了变电站基本的运行工况,而且能进行雪崩试验等极端运行环境下的试验项目,可在最大配置情况下,对过程层网络进行性能测试,从而充分验证了过程层网络的可靠性。对试验数据的分析结果,为指导产品研发及工程应用提供了依据。

In the performance test of smart substation, application of network load relies mainly on commercial network analyzer. However, the data and traffic characteristics of the above mentioned network load are different from the actual load in smart substation. For this reason, we build a testing system used for process-layer network of 500 kV smart substation, based on the analysis of network structur~ of actual smart substation. This testing system not only covers the basic running environment of substation but also permits test items in the extreme environment such as avalanche. Performance test on process-layer network can be conducted under the maximum configuration, thus validating the reliability of process-layer network. The analysis result of experimental data provides a guide for product development and engineering application.