基于屏蔽层通信的环网柜载波技术研究

Research on Carrier Technology of Ring Main Unit Based on Shield Layer Communication

配电自动化系统的通信网络以光纤为主、通用分组无线服务技术为辅,不允许使用通用分组无线服务技术做遥控,导致通用分组无线服务技术的“三遥”功能及其配套的开关只能使用“二遥”功能。针对此问题,通过分析基于屏蔽层通信的环网柜载波技术的实现原理、应用优势及效果,指出环网柜载波通信可以把光纤无法铺设区域的数据传输设备接入主站,完成数据传输设备与主站的内网通信,作为配网自动化通信的补充信道。

When building the communication network of distribution automation system,optical fiber is taken as the main method and GPRS as the auxiliary method,while GPRS is not allowed to be used as the remote control,which results in that the“three remote”control function and its matching switch of GPRS can only be used as“two remote”control.To solve this problem,on the basis of an analysis of the realization principle,application advantages and effects of carrier technology of ring main unit based on shield layer communication,it is pointed out that carrier communication of ring main unit can connect DTU in areas where optical fiber fails to be laid to the master station and accomplish intranet communication between DTU and the master station,which can be used as a supplementary communication channel for distribution network automation communication.