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电网技术  2006 

基于时钟差的线路电流差动保护数据同步方法

, PP. 78-83

Keywords: 电流差动保护,同步,通信,时钟差,电力系统

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Abstract:

随着现代电力通信网的发展和完善,自愈环网或可变路由的光纤通道逐渐增多,给线路光纤差动保护带来了新的问题。现有的数据同步技术假设收、发通道延时一致,一旦通信路由发生改变,就会由于数据不同步而影响保护的可靠性。为此,文章通过引入装置时钟差的概念,提出了一种基于时钟差的数据同步方法,该方法以乒乓对时为基础、参考向量法对时作辅助,解决了自愈环网双向通道路由不一致时数据的同步问题,具有很好的实用价值。

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