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A method for calculating the upper delay of infrormation transmission inside digital substation
Author(s): 
Pages: 44-48
Year: Issue:  11
Journal: RELAY

Keyword:  数字化变电站网络演算信息传输时延上界;
Abstract: 针对现有基于排队论的信息传输时延计算方法的不足,提出了基于网络演算的数字化变电站信息传输时延上界计算方法,分析了数字化变电站内信息类型和特性,建立了变电站内信息的漏桶模型,引入微流和级联网络的概念,应用网络演算理论,推导了普遍适用、形式统一的计算时延上界的解析表达式,据此可以在信息传输前准确判断传输时延能否满足时限要求.以一典型220 kV数字化变电站为例,采用该方法得到了变电站内各种信息流的传输时延上界,表明本方法的有效性.该方法为构建满足时延要求的数字化变电站提供了理论依据.
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