文档介绍：
广域后备保护中主路径自动切换技术
朱银涛,马天福,李凯,运凯*
(国网新疆电力公司信息通信公司,乌鲁木齐 830002)
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摘要:流传输控制协议(SCTP)可以在电力通信网络与输电线路同时故障时实现广域后备
保护迅速可靠动作。由于 SCTP 基于 Heart Beat 机制进行路径故障检测,导致故障检测不及
时问题,特别是故障导致主路径性能急剧下降但是仍未发生断开错误时,以上问题导致广域
后备不能及时动作。针对这一问题,首先分析了基于时延的主路径自动切换方法和基于路径
综合评价主路径自动切换方法;随后,将基于路径综合评价主路径自动切换方法引入广域后
备保护信息通信传输中;最后,通过 NS2 仿真实验环境进行了验证,实验结果表明,基于
路径综合评价的主路径自动切换方法降低了主路径自动切换时间,提高了广域后备保护通信
传输的可靠性。
关键词:广域后备保护;流传输控制协议(SCTP);主路径自动切换
中图分类号:TP393
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Primary Path Handover in Wide-Area Backup Protection
ZHU Yintao, MA Tianfu, LI Kai, YUN Kai
(State Grid Xinjiang Information and pany, Urumqi 830000)
Abstract: Stream Transmission Control Protocol (SCTP) in the electric work
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and transmission line failures to achieve both fast and reliable Wide-Area backup protection action.
However, SCTP-based Heart Beat path failure detection mechanism, resulting in failure detection is not
timely issues, especially the primary path failure resulting in significant performance degradation, but
not disconnected when an error occurs, the above problems lead Wide-Area backup can not be timely
action. To solve this problem, this paper analyzes the main path based on delay automatic switching
prehensive evaluation method based on the primary path automatically switching method,
based on the path prehensive evaluation method introduces the main path automatically
switched Wide-Area ba