电力系统保护与控制Issue(18)：73-77,5.
一种基于自响应机制的环网冗余通信方法
A redundant communication method based on self-response mechanism used for ring network
摘要
Abstract
Against the lack of a redundancy method to ensure the smart substations’ high availability of the communication based on multi-mode fiber, this paper presents a ring network redundancy method, which is based on the response mechanism to improve communication availability. This method achieves the redundancy protection by the ring network equipments’ determining the response and setting the port status, controls the amount of CPU port’s data by constructing data frames that can be identified and processed by switch chip as test frames, and shortens the redundant recovery time by the rational allocation and effective utilization of the CPU. The method is applied to the simulation tests in the smart substation system using the ring network equipments of the laboratory. Tests show the redundancy recovery time is less than 30 ms. Compared with MRP protocol, the load of the device itself is reduced about 10% when running this method. This method ensures the real-time and reliability of communication based on multimode optical network in the smart substations.关键词
智能变电站/多模光纤/冗余通信/实时性/可靠性Key words
smart substation/multi-mode fiber/redundant communication/real-time/reliability分类
信息技术与安全科学引用本文复制引用
王浩,王立民,郭楠,王平..一种基于自响应机制的环网冗余通信方法[J].电力系统保护与控制,2013,(18):73-77,5.基金项目
国家国际科技合作专项(2012DFG12240)；重庆市科技攻关计划项目(CSTC2011AB2096)；重庆邮电大学研究生教育创新计划重点项目；重庆市教委项目(KJ120518) （2012DFG12240）
