面向智能变电站的无主站式环网母线保护实现方案

发布时间：2018-01-14 23:25

本文关键词：面向智能变电站的无主站式环网母线保护实现方案　出处：《电气应用》2014年20期 　论文类型：期刊论文

【摘要】：提出了一种无主站式环网分布式母线保护实现方案,在借鉴高可靠性无缝冗余环网(HSR)技术基础上,设计了一种新型的环网同步方案,既可以实现各间隔节点的精准对时,又为组网方式下的采样值同步提出了一种新的解决方案。通过在环网报文设置报文延时修正域,每经过一个环网节点后添加相应节点的驻留延时和传输延时,到达接收节点后根据报文延时修正值推算出对应采样点时刻,从而实现插值同步。环网内各间隔节点采用相同的软硬件配置及保护算法,可以与其他间隔保护就地化安装,满足新一代智能化变电站对母线保护的要求。
[Abstract]:In this paper, a scheme of distributed bus protection without master station ring network is proposed. Based on the reference of high reliability seamless redundant ring network (HSRs) technology, a new ring network synchronization scheme is designed. A new solution is proposed to synchronize the sampling values in the mode of networking by setting the packet delay correction domain in the ring network. After passing through a ring network node, the resident delay and transmission delay of the corresponding node are added, and the corresponding sampling point time is calculated according to the packet delay correction value after arriving at the receiving node. The same hardware and software configuration and protection algorithm are adopted for each interval node in the ring network, which can be installed locally with other interval protection and meet the requirements of the new generation intelligent substation for busbar protection.
【作者单位】：南京国电南自自动化有限公司;国网嘉兴供电公司;
【分类号】：TM63;TM76
【正文快照】： 作为智能变电站综合自动化体系的重要组成部分,母线及其保护功能的实现直接影响到电力系统的安全可靠运行[1]。分布式母线保护面向间隔,具有分散处理能力,可以克服传统集中式母线保护二次回路接线复杂、现场运行维护困难以及无法就地化安装等缺点,因而成为适应智能变电站工程

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