对数字化变电站通信网络性能测试的必要性进行了分析。
The necessity of communication network testing in digitalized substation is analyzed.
对基于变电站通信网络和自动化系统的国际标准——IEC61850的变电站过程层进行了研究。
The process level of substation, which is based on the international standard IEC61850 of substation communication network and automatic system, is researched.
研究不同网络结构和配置下IEC 61850变电站通信网络的性能，对IEC 61850变电站自动化设备的研发和通信网络的设计具有重要意义。
So understanding IEC 61850 substation communication network performance under different network framework and configure will benefit substation automation devices' development and network design.
通信网络是变电站自动化系统的关键。
Communication network is a key technique in substation automation system.
为使不同厂商的产品具有互操作性，IEC制定了关于变电站自动化系统的通信网络和系统的国际标准协议IEC61850。
In order that devices of various manufacturers have interoperability, IEC has drafted an international standard protocol IEC61850 on communication networks and systems in substations.
研究快速以太网在变电站自动化系统中的应用，提出了基于100M以太网的变电站通信网的网络结构。
Research the application of 100m Ethernet in substation automation system, and provide a new network configuration of substation automation system base on 100m Ethernet.
目前，光纤通信网络在电力系统的覆盖面越来越广，使变电站基本都具备光纤通信条件，电力通信手段已大为改善。
Nowadays, optical fiber net is used more and more widely in electric power system, optical fiber terminal basically reaches to station, communication is improved.
目前，光纤通信网络在电力系统的覆盖面越来越广，使变电站基本都具备光纤通信条件，电力通信手段已大为改善。
Nowadays, optical fiber net is used more and more widely in electric power system, optical fiber terminal basically reaches to station, communication is improved.
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