基于继电辨识的大时滞对象的内模控制  

Relay Recognition Based IMC for Objects with Large Dead Time

作　　者：董红生[1] 

机构地区：[1]兰州工业高等专科学校电气工程系,兰州730050

出　　处：《自动化仪表》2006年第11期14-17,共4页Process Automation Instrumentation

摘　　要：采用改进的饱和继电反馈实验辨识高精度的过程模型,将内模控制与Smith预估控制器相结合,提出了一种适用于大时滞对象的内模控制结构,并按内模控制结构设计控制器。仿真实验表明该控制结构可获得比Smith预估控制更好的动态性能、鲁棒性和抗干扰性能,为大时滞对象的控制提供了一种新的实用方法。The use of improved saturation relay feedback tests for system tries to recognize a high-accuracy process model, the internal model control integrates into Smith predictive controller, a sort of internal model control（ IMC） structure for the objects with large dead time is presented, and the design of controller is used IMC method. The results of simulation show that this control strategy gets much better control performance in dynamic response performance, robustness and rejection of load disturbance, and it is a kind of new practical method for system control with large dead time.

关 键 词：饱和继电辨识 内模控制 SMITH预估控制 

分 类 号：TP273.2[自动化与计算机技术—检测技术与自动化装置]