浅谈PLC PID回路切换的稳定控制  

Discussion on Stable Control of Siemens PLC PID Control Loop Switching

作　　者：万明 

机构地区：[1]中航工程集成设备有限公司,北京102206

出　　处：《工业控制计算机》2024年第9期161-162,164,共3页Industrial Control Computer

摘　　要：PID控制器是工业自动化控制领域中应用最为广泛的一种算法控制器,在各种工业控制器上都集成有PID控制功能实现温度、压力等物理量的控制。主要讨论液压系统的流速和压力闭环控制和两种控制之间的切换,控制对象是液压伺服比例阀。工艺要求先流速控制再切换到压力控制,在项目后期调试过程中,两个PID回路的切换时刻,需要通过一种控制方法实现液压伺服比例阀的稳定控制。This paper mainly discusses the closed-loop control of flow rate and pressure in hydraulic systems,as well as the switching between the two types of control.The control object is the hydraulic servo proportional valve.The process requires first controlling the flow rate and then switching to pressure control.In the later stage of project debugging,the switching time between the two PID circuits needs to be achieved through a control method to achieve stable control of the hydraulic servo proportional valve.

关 键 词：PID控制 流速控制 压力控制 PID回路切换 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]