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在建设电力系统广域保护通信系统时,还要对系统的可靠性进行分析,从而为电力系统的安全运行提供保障。而就目前来看,在分层区域式保护通信系统中,主要采取的是SDH光网络结构。基于这种认识,本文对SDH光网络结构展开了分析,并对SDH光网络下分层区域式保护通信系统的可靠性分析问题进行了探讨。通过分析可以发现,采用SDH自愈环网结构,能够使光纤故障对系统可靠性的影响得到减小。
In the construction of wide area power system communication protection system, but also on the reliability of the system analysis, in order to provide safeguards for the safe operation of the power system. However, for the moment, in the hierarchical area-based protection communication system, the SDH optical network structure is mainly adopted. Based on this understanding, this paper analyzes the structure of SDH optical network, and discusses the reliability analysis of hierarchical area-based protection communication system under SDH optical network. Through analysis, we can find that using SDH self-healing ring network structure can reduce the influence of optical fiber fault on system reliability.