变电站SCADA系统双机热备的研究与实现  

Research and Implementation of Dual-server Hot-standby in Substation SCADA System

作　　者：崔嵩[1] 满令伍[1] 穆兴团[1] 

机构地区：[1]山东大学控制科学与工程学院

出　　处：《可编程控制器与工厂自动化（PLC FA）》2013年第8期67-70,共4页Programmable controller & Factory Automation(PLC & FA)

摘　　要：针对变电站SCADA系统中主机服务器在运行时出现故障、宕机而造成运行系统失控、数据丢失等问题,提出了一种基于OPC技术的双机热备方案,该方案可以实现故障隔离,保证系统的持续运行,同时提高系统的可靠性。本文详细介绍了双机热备方案的工作机制和关键性技术,并通过与其它双机热备方案的实现技术对比来凸显其优势。最后以PMM2000智能仪表为例对双机热备系统进行现场测试,完成预期目标。Aiming at the questions that host servers in SCADA break down and cause losing control of the runtime system and the data missing, the method of dual-server hot-standby based on OPC technology is proposed to achieve fault isolation by redundancy. It ensures the continued operation of the system and improves the reliability of the system. This paper introduces the technology of dual-server hot-standby＇s working mechanism and its key technology. It analyzes the advantages of this technology by comparing the implement method with other technologies. At last, make a test about the PMM2000 smart meters connected with the Dual-server hot-standby system to achieve the original goal.

关 键 词：SCADA 双机热备 OPC技术PMM2000 

分 类 号：TP273.5[自动化与计算机技术—检测技术与自动化装置]