The application of precision clock synchronization technology based on PTP(IEEE1588) in traveling wave fault location system

2011 International Conference on Advanced Power System Automation and Protection Pub Date : 2011-10-01 DOI:10.1109/APAP.2011.6180541

Ruifeng Li, Xiangjun Zeng, Hui Liu, Yang Wang

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引用次数: 7

Abstract

Traveling wave fault location system is an important part in building strong smart grid. Global Positioning System( GPS)is now widely used as clock synchronization source. However, with the development of smart grid technology, GPS clock has exposed some limitations. A kind of traveling wave fault location network based on PTP(IEEE1588) is proposed in this paper. First, the synchronization principle of high-accuracy clock synchronization technology bades on IEEE1588 is analyzed. Then, structure of PTP(IEEE1588) based traveling wave fault location network is built. Last, redundancy scheme of PTP based time synchronization system for traveling wave fault location network is designed. Compared to GPS traveling wave fault location system, this one has such advantages as low cost, having nothing to do with climate, location and environment, and can meet the demand for clock synchronization among each traveling wave fault location system. Connected by Ethernet, GPS clock is not needed to be installed in each traveling wave fault location equipment. It is simple, reliable and of obvious superiority, playing great significance on maintaining safe operation of power and social stability.

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基于PTP(IEEE1588)的精密时钟同步技术在行波故障定位系统中的应用

行波故障定位系统是建设强智能电网的重要组成部分。目前，全球定位系统(GPS)作为时钟同步源被广泛使用。然而，随着智能电网技术的发展，GPS时钟暴露出了一些局限性。提出了一种基于PTP的行波故障定位网络(IEEE1588)。首先，分析了基于IEEE1588的高精度时钟同步技术的同步原理。然后，构建了基于PTP(IEEE1588)的行波故障定位网络结构。最后，设计了基于PTP的行波故障定位网络时间同步系统的冗余方案。与GPS行波故障定位系统相比，该系统成本低，不受气候、位置和环境的影响，能够满足各行波故障定位系统之间时钟同步的需求。通过以太网连接，无需在每个行波故障定位设备中安装GPS时钟。它操作简单、可靠、优势明显，对维护电力安全运行和社会稳定具有重要意义。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2011 International Conference on Advanced Power System Automation and Protection

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