基于 S7－300 PLC 的煤地下气化过程监控系统设计

摘要

For monitoring operating parameters of the production process of UCG in real -time, Underground Coal Gasification remote monitoring and control system was designed , based on S7-300 PLC and configura-tion software.In order to guarantee the security and reliability of the system , monitoring host used dual redun-dancy.Ethernet and PROFIBUS-DP fieldbus were used in communication and PID is used in fans control. Running result shows the effectiveness of underground coal gasification real -time monitoring and control system.%为了实时监测煤地下气化生产过程中各种参数的实际运行情况，利用S7－300 PLC和FameView组态软件，设计了煤地下气化实时测控系统。为保障系统安全可靠，现场监控主机采用双机冗余配置，通信网络采用了工业以太网和PROFIBUS－DP现场总线，对供风机和引风机实现了PID控制。实际运行结果表明，该系统能够对煤地下气化生产参数进行有效的实时监测和控制。