火电厂分散控制系统域间通信分析研究  

Inter domain communication analysis for DCS of thermal power plant

作　　者：曾卫东[1] 任国俊 卢海松[2] 张志学[2] 王海东 杨渊 ZENG Weidong;REN Guojun;LU Haisong;ZHANG Zhixue;WANG Haidong;YANG Yuan(Xi’an Thermal Power Research Institute Co.,Ltd.,Xi’an 710054,China;NR Electric Co.,Ltd.,Nanjing 211002,China)

机构地区：[1]西安热工研究院有限公司,陕西西安710054 [2]南京南瑞继保电气有限公司,江苏南京211002

出　　处：《热力发电》2021年第12期1-5,共5页Thermal Power Generation

基　　金：中国华能集团有限公司总部科技项目(HNKJ20-H39)。

摘　　要：结合全国产华能睿渥分散控制系统(DCS)的工程应用经验,对2种域间通信方案进行分析研究,为后续的工程实施奠定基础。一种方案是通过部署独立的域间通信接口机并运行通信应用程序来完成域间数据转发,接口机配置四网卡与两侧域直接通信,实现域间通信功能。另一种方案是采用网络技术对不同域进行隔离,通过配置交换机访问策略、共享域策略、网络环路检测、路由策略等实现不同域DCS业务的互通以及广播风暴跨域传播的限制。2种方案都可以完成域间通信的功能要求,各有特点,可根据现场实际条件及用户需求选取相应的方案实施。Combined with the engineering application experience of national Huaneng Ruiwo DCS system,two kinds of inter domain communication schemes are analyzed to lay the foundation for the follow-up projects implementation.One scheme is to deploy inter domain communication interface machine,and run inter domain communication application program to complete inter domain data forwarding.The interface machine is configured with four network cards to communicate directly with the two sides of the domain.The other scheme is to isolate different domains by network technology.By configuring access policy,shared domain policy,network loop detection and routing policy on the switch,the interworking of DCS system services in different domains and the limitation of broadcast storm cross domain transmission can be realized.Both schemes can fulfill the functional requirements of inter domain communication,and each has its own characteristics.Scheme can be selected for implementation according to the actual site conditions and user needs.

关 键 词：DCS 域间通信 接口机 网络技术 数据转发 

分 类 号：TP314[自动化与计算机技术—计算机软件与理论]