PLC及变频器在污水泵站控制系统中的应用  

Application of PLC and inverter in the sewage pumping station control system

作　　者：张大为[1] 张锋[1] 

机构地区：[1]天津市市政工程设计研究院滨海分院,天津300051

出　　处：《数字技术与应用》2012年第4期6-7,共2页Digital Technology & Application

摘　　要：本文通过天津某污水泵站自控设计的经验,着重阐述了PLC及变频器在污水泵站控制系统中的应用。给出了PID控制的数学模型及其控制结构。采用PID控制系统的液位,实现自动调节水泵的转速及开停,起到精确控制的作用。Based on the design experience of one sewage pumping station in Tianjin,this paper particularly emphasize the application of PLC and inverter in the control system of sewage pumping station.The mathematical model and control structure of the PID control were proposed in this paper.By using the liquid level,PID control system can achieve the precision control by automatically regulating the rotation speed and switching of pump.

关 键 词：PLC 变频器 泵站控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]