发电机组DCS常见问题分析及解决措施  

Problems Analysis and Its Solution Measures on DCS of Power Generation Unit

作　　者：索建琪 侯勇军[2] 刘海[1] 李强[1] 于利宏[3] 

机构地区：[1]北方联合电力有限责任公司达拉特发电厂,内蒙古鄂尔多斯014300 [2]北方联合电力有限责任公司,呼和浩特010020 [3]北方联合电力有限责任公司包头第二热电厂,内蒙古包头014030

出　　处：《内蒙古电力技术》2014年第4期46-48,52,共4页Inner Mongolia Electric Power

摘　　要：分析了发电厂DCS电源可靠性、电气开关量接口等方面存在的问题,对DCS电源结构进行了比对介绍,提出了DCS可采用直流供电模式的改进办法;针对DCS I/O模件隔离和抗干扰问题,给出了各类电气开关量在接入至DCS卡件前,应先经隔离继电器进行物理隔离等建议。Gave the analysis about the problems of unit DCS in power plant, andcomprehensive comparison of DCS power structure. Put forward the improved method thatDCS could use DC power supply. To the system I/O module isolation and anti interferenceproblems, gave the suggestion that various types of electrical switch signals should takephysical isolation measures by isolating relay before connected in DCS cards.

关 键 词：DCS 直流电源 隔离继电器 屏蔽 电磁干扰 

分 类 号：TK323[动力工程及工程热物理—热能工程]