摘要
按照现行电力调度通信技术标准中有关保护信号传输通道传输误码和延时的规定,对SDH通信系统的传输误码特性以及传输延时进行实测、分析、计算和讨论,证明SDH光纤通信系统完全能够满足保护信号对传输质量和传输延时的要求,可以作为继电保护信号的可靠传输通道。同时建议今后在规划电力专用通信网时,应该同时考虑复用保护信号,以提高通道利用率,减少投资。
According to the clauses relevant to the code error and time delay in the signal channel in the technical standard for the power dispatching and communication, the characteristics of code error and time delay in transmission are analyzed and some calculations are performed and discussed. Some practical examples are enumerated, and it is proved that SDH devices can satisfy the requirement of the transmission quality and time delay of protection signals according to the measured data of SDH products from some manufacturers. Therefore, the SDH devices can be used as the channel for protection signals. At the same time, it is suggested that in the planning of special power communication network the multiplexing of protection signals should be considered to improve the utilization rate of the channel and reduce its investment.
出处
《电网技术》
EI
CSCD
北大核心
2002年第10期66-70,共5页
Power System Technology
关键词
SDH
光纤通信
继电保护信号
误码特性
时间延迟
电力系统
信号传输
protective relaying
SDH optical fibre com-munication system
error code rate
transmission delay
multipl-exing
