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浅析SDH光纤通信传输继电保护信号的误码特性和时间延迟
引用本文:赵大平,孙业成.浅析SDH光纤通信传输继电保护信号的误码特性和时间延迟[J].电网技术,2002,26(10):66-70.
作者姓名:赵大平  孙业成
作者单位:中国电力科学研究院通信所,北京,100085
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。

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
文章编号:1000-3673(2002)10-0066-05
修稿时间:2001年12月30

A PRELIMINARILY ANALYSIS OF CHARACTERISTICS OF CODE ERROR AND TIME DELAY OF PROTECTIVE RELAYING SIGNALS TRANSMITTED BY SDH OPTICAL FIBRE COMMUNICATION SYSTEM
ZHAO Da-ping,SUN Ye-cheng.A PRELIMINARILY ANALYSIS OF CHARACTERISTICS OF CODE ERROR AND TIME DELAY OF PROTECTIVE RELAYING SIGNALS TRANSMITTED BY SDH OPTICAL FIBRE COMMUNICATION SYSTEM[J].Power System Technology,2002,26(10):66-70.
Authors:ZHAO Da-ping  SUN Ye-cheng
Abstract: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.
Keywords:protective relaying  SDH optical fibre com-munication system  error code rate  transmission delay  multipl-exing
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