国产DCS与PLC集成方案的比较及其在电厂的应用  

Comparison of Integration Scheme of Domestic DCS and PLC and Its Applications in Power Plant

作　　者：曾蓉[1] 冯继勇 丁明亮[1] 向贤兵[1] 

机构地区：[1]重庆电力高等专科学校,重庆400053 [2]重庆发电厂,重庆400053

出　　处：《自动化仪表》2009年第12期46-48,51,共4页Process Automation Instrumentation

基　　金：2008年重庆市电力公司科技基金资助项目(编号:2008-46-16-6)

摘　　要：为了实现电厂DCS与PLC的数据共享和统一监控,设计了和利时HOLLIAS-MACSVDCS与SiemensS7-300PLC的三种集成方案,并比较说明了这三种方案的各自特点。集成方案的实施将PLC的相关信息融入到DCS的数据库进行管理,使得DCS与PLC成为可以交换信息的整体。同时,DCS操作员站可监控这些辅助系统的运行。试验测试和实际运行表明,系统集成提高了电厂自动化水平,减少了监控点数量,并节约了电厂的运行成本。In order to achieve data sharing and unified monitoring of DCS and PLC in power plant, three of the integration schemes for HOL- LIAS-MACSV DCS and Siemens S7-300 PLC have been designed. The features of these three schemes are described and compared. The integration scheme merges the related information of PLC into database of DCS for management, which makes DCS and PLC becomes an entirety that is capable in information exchange. In addition, the operation status of auxiliary systems can be monitored on operator workstations of DCS. The test and practical operation indicate that the integration of the systems enhances the automation level of power plant, reduces the quantity of monitoring points, and lowers the operation costs.

关 键 词：集成 DCS PLC PROFIBUS-DP OPC 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]