火电厂输煤系统PLC改造为DCS的设计研究

Design and Research of Transforming PLC into DCS for Coal Transport System in Thermal Power Plant

基于燃煤电厂智能化发展的必然趋势以及输煤系统中各设备的远程控制、自动化运行和状态监控的发展目标,网络通信连续稳定、I/O模块故障恢复成为整个系统安全生产的关键。本文通过综合分析PLC系统的应用现状以及现有输煤系统对程控系统的需求,提出在线升级改造PLC系统为DCS系统,以实现输煤系统的远程控制,进而保证生产过程的安全稳定。

Based on the inevitable trend of intelligent development of coal-fired power plants and the development goals of remote control,automatic operation and state monitoring of each equipment in the coal transport system,the network communication continuity and stability,I/O module fault recovery has become the key to the safety of the whole system production.In this paper,through the comprehensive analysis of the application status of PLC system and the demand of the existing coal transport system for program control system,put forward the online upgrade and transformation of PLC system for DCS system,in order to realize the remote control of coal transport system,and then ensure the safety and stability of the production process.