一类工业过程的PID控制器整定方法  

A Tuning Approach to PID Controller for a Class of Industrial Processes

作　　者：黄金杰[1] 杨桐玲[1] 高雅娟[1] 

机构地区：[1]哈尔滨理工大学自动化学院,黑龙江哈尔滨150080

出　　处：《自动化技术与应用》2010年第5期20-23,共4页Techniques of Automation and Applications

基　　金：国家自然科学基金(编号60575036);哈尔滨市科技创新人才研究专项资金项目(编号2007RFXXG023);哈尔滨理工大学优秀拔尖创新人才培养基金(编号20080103)

摘　　要：PID调节器具有结构简单、适应性强、不依赖于被控对象的精确模型、鲁棒性较强等优点。控制器的性能直接关系到生产过程的平稳高效运行以及产品的最终质量。针对一类可用带有纯时间延迟的一阶对象来近似描述的工业过程,本文通过对工业过程现场采集的数据,利用Levenberg-Marquardt最小二乘拟合法辨识出被控对象的数学模型,进而根据典型PID控制器的参数整定方法求出PID控制器的参数。通过对一个典型工业对象的仿真研究,结果表明所提出的方法简单有效。The PID controller has merits of simple structure,strong compatibility,independence of precise models,and strong robustness.The performance of controllers can directly affect not only the smooth and efficient operation of a production process but also the final product quality.A class of industrial processes that can be described approximately by a first-order plus time delay model is investigated in this paper.The mathematical model is identified first by the Levenberg-Marquardt least square fitting method with data collected in the industrial process,and then the PID controller parameters are obtained in terms of several typical PID tuning methods.Finally,a PID controller is designed.The experimental results of a typical industrial processes show that the proposed method is both simple and effective.

关 键 词：工业过程 PID控制器 参数辨识 整定 

分 类 号：TP273.2[自动化与计算机技术—检测技术与自动化装置]