仪用PID参数自整定控制器设计与应用  

The Design and Application of Autotune PID Controller for Instruments

作　　者：朱海锋[1] 杨智[1] 张名宙[1] 

机构地区：[1]中山大学电子与通信工程系,广州510275

出　　处：《自动化仪表》2005年第7期10-12,共3页Process Automation Instrumentation

摘　　要：传统的继电振荡PID参数自整定方法由于在整定期间要使系统处于临界振荡状态,并且整定周期较长,限制了在许多工业控制过程中的应用。介绍了一种基于开关阶跃响应算法的PID参数自整定控制器,通过在实际温度控制系统的应用,与继电振荡PID参数自整定算法以及ModiconPLC的PID参数自整定模块进行分析比较,证明该算法在安全性及整定时间上明显优于其他两种算法。Conventional relay feedback PID self-tuning leads processes into critical oscillation which is not permitted in industrial control systems, and it is time-consuming to get PID parameters. In this paper, a new PID auto-tuner based on switched step responses algorithm is presented. Through a practical temperature control system, the PID auto-tuner using switched step responses is compared with the relay feedback auto-tuner and the PID auto-tuning module of Modicon PLC. Results of the temperature test show that the new auto-tuner is better in security and faster than those of the others.

关 键 词：PID参数自整定 控制器设计 应用 参数自整定方法 Modicon 仪用 工业控制过程 自整定控制器 温度控制系统 自整定算法 阶跃响应 分析比较 振荡 PLC 安全性 继电 模块 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] TP273.2[自动化与计算机技术—控制科学与工程]