摘要
根据WNS型锅炉炉群的工艺和控制要求,开发了一种双机冗余的高可靠性锅炉炉群计算机监控系统。该系统采用2台工控机IPC配套组态软件作为上位主控设备,2台可编程逻辑控制器PLC和若干台具有通讯接口的智能仪表等组成下位设备,构成IPC+PLC+智能仪表+工业以太网的双机冗余系统;系统既有上、下位机双机冗余热机备份,又有工程师站和操作员站功能。实际运行效果表明,该系统大大提高了锅炉炉群监控系统的可靠性和稳定性,在民用锅炉炉群控制领域具有典型的应用示范作用。
According to the process and control requirements of WNS boiler group,a double-machine redundancy computer monitoring system for boiler group with high reliability is developed. The system uses two IPC configuration software as the upper main control equipment,two programmable logic controllers and several intelligent instruments with communication interface as the lower equipment,and constitutes a dual-computer redundancy system of IPC +PLC+intelligent instrument+industrial ethernet. The system has not only the backup of the redundant heat recovery machines of upper and lower computers,but also the functions of engineer station and operator station. The actual operation results show that the system greatly improves the reliability and stability of the boiler group monitoring system,and has a typical application demonstration role in the field of civil boiler group control.
引文
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