基于E1链路的远程SV数据传输技术探讨

摘要

旨在研究基于E1链路的远程采样值数据透明传输方法，通过划分E1信道为LV0和LV1两个优先级的逻辑信道，在低优先级LV0上传送时间戳和链路管理报文，在LV1信道中映射并传输SV数据，利用端到端E1／SV转换设备进行链路延迟和软件延迟测量，并将总的延迟量附加在SV数据报文中发送给对端的IED设备，实现了IEC61850－9－2格式的SV数据报文经过SDH网络的远程传送和延迟补偿，使得智能站的SV数据报文可方便地进行广域化扩展。%Aimed to study sampled value transmission through SDH via E1 link transparently,this paper divided E2E physi-cal link to two logical channel (LV0&LV1),and transmission link management & timestamp message on low priority channel LV0,mapping SV data in high priority LV1 channel.By the E1/SV conversion equipment located on each link end to measure channel delay and software delay,implements remote transmission and delay compensation for IEC61850- 9-2 protocol mes-sage through SDH network,make SV data in intel igent substation can be easily to transmission to wide-area application.