PLC和变频器在锅炉给水控制系统中的应用  

PLC and Inverter in the Boiler Feedwater Control System Application

作　　者：王昭同[1] 

机构地区：[1]甘肃畜牧工程职业技术学院,甘肃武威733006

出　　处：《物流工程与管理》2013年第9期196-197,214,共3页Logistics Engineering and Management

摘　　要：文中介绍了采用PLC控制的变频调速锅炉给水系统,由PLC经过PID运算,逻辑控制变频器的输出频率,实现闭环自动调节流量变量给水,达到控制锅炉水位的目的。提出系统方案与系统的构成,并简要介绍系统的硬件结构。This paper introduces the variable frequency speed boiler feedwater system controlled by PLC, by PLC after PID operation, the logic output frequency converter control, closed - loop automatic controlflow variable water supply, to achieve the purpose of control of boiler water level. Puts forward a system scheme and system, and briefly introduces the system hardware structure.

关 键 词：变频器 PLC PID控制 补水泵 

分 类 号：TH69[机械工程—机械制造及自动化]