|
| 摘要: |
| 当前,变电站的对时方式有脉冲对时、编码对时和网络对时3种方式.介绍了某数字化变电站内的简单网络协议(SNTP)同步对时系统,该系统是基于测控装置事故顺序记录分辨率的对时精度测试系统.SNTP对时系统的站控层网络采用传统的双星100 M以太网结构,间隔层配置2台RS2100交换机.通过对数字化变电站网络交换机正常负载、重负载、装置CPU负荷高的对时精度测试,分析了影响对时精度的因素主要有:SNTP时间服务器主时钟精度、数字化变电站站控层的网络负载流量、测控装置的CPU利用率及网络设备等的性能.测试结果表明,SNTP对时方式在数字化变电站是一种较好的选择. |
| 关键词: 数字化变电站 时间同步 网络对时 编码对时 |
| DOI： |
| 分类号:TM76;TM63 |
| 基金项目: |
|
| Application of SNTP-based time synchronization in digital substation |
|
HU Ju GAO Xinhua
|
| Abstract: |
| The time synchronization modes in digital substation are pulse synchronization,code synchronization and network synchronization. The SNTP(Simple Network Transmission Protocol)-based time synchronization system of a digital substation is introduced,which is based on the time synchronization accuracy test system of SOE(Sequence of Events) resolution for the measuring and control device. Its station-level network adopts the 100 M Y-Y Ethernet and its bay-level has two RSG2100 exchangers. The time synchronizati... |
| Key words: SNTP TCP/IP |
