中小型火电厂DCS系统的抗干扰要求与设计  

Design of Anti-interference for DCS in Small and Medium-sized Power Plants

作　　者：陈小健 周洪煜[2] 

机构地区：[1]中煤科工集团重庆设计研究院,重庆400016 [2]重庆大学动力工程学院,重庆400030

出　　处：《计算机测量与控制》2013年第7期1834-1837,共4页Computer Measurement &Control

摘　　要：制约中小型火电厂或热电厂DCS系统安全、稳定、可靠运行的重要干扰因素是电源供应、信号归类及电缆敷设、接地系统的设计、施工及维护问题;通过分析DCS对电源、信号、接地的抗干扰要求,结合工程设计经验,阐述了这三方面的抗干扰设计方案,提出了施工及维护中的一些注意事项以供项目参考。Important interference factors that restrict DCS security, stability and reliable operation in small and medium-sized power plants or thermal power plants, are problems of power supply, signals classified and cables laying, and grounding system. Through the analysis of DCS＇s anti-interference requirements for power, signals and grounding, according to the engineering design experience, expounded the anti-in- terference design scheme for three aspects and put forward some attentions of the construction and maintenance for project reference.

关 键 词：中小型火力发电厂 DCS 抗干扰 接地 

分 类 号：TK323[动力工程及工程热物理—热能工程] TP237.5[自动化与计算机技术—检测技术与自动化装置]