基于数据通道的双端行波测距时钟同步
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摘要
为实现双端行波故障测距时钟同步问题,提出一种基于数据通道的双端行波故障测距时钟同步方法。该方法以LabVIEW为平台开发软件,利用TCP/IP协议及PCI5105高速数据采集卡实现时间戳获取,计算通道延时和当前时标差,然后利用当前时标差对传统双端行波测距公式进行修正。搭建10kV自闭贯通线动模拟试验,通过比较单端行波测距法和修正后双端法的结果表明该算法具有一定的可行性。
To realize the clock synchronization of double terminal traveling wave(TW)fault location,a clock synchronization method of double terminal traveling wave fault location based on data channel is proposed.This method takes LABVIEW as the platform to develop software,uses TCP/IP network communication protocol and PCI5105 high-speed data acquisition card to achieve time stamp acquisition,calculates channel delay and current time scale difference,and then uses the current time scale difference to modify the traditional double terminal traveling wave ranging formula.Through the dynamic simulation experiment of 10 kV railway automatic blocking and continuous transmission lines(RABCTL),the comparison between single method and modified double method shows that the algorithm has certain feasibility.
To realize the clock synchronization of double terminal traveling wave(TW)fault location,a clock synchronization method of double terminal traveling wave fault location based on data channel is proposed.This method takes LABVIEW as the platform to develop software,uses TCP/IP network communication protocol and PCI5105 high-speed data acquisition card to achieve time stamp acquisition,calculates channel delay and current time scale difference,and then uses the current time scale difference to modify the traditional double terminal traveling wave ranging formula.Through the dynamic simulation experiment of 10 kV railway automatic blocking and continuous transmission lines(RABCTL),the comparison between single method and modified double method shows that the algorithm has certain feasibility.
引文
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