IMC-PID Controller Based on Diagonal Equivalent Model for Multivariable Systems with Multiple Time Delays

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Qibing Jin¹  Feng Hao¹  Qi Wang¹ 

[1] Institute of Automation, Beijing University of Chemical Technology

关键词: Multiple-Input–Multiple-Output (MIMO);    Equivalent Model;    Smith Delay Compensator;    Internal Model Control (IMC);    PID;   

DOI  :  10.1252/jcej.12we178

来源: Maruzen Company Ltd

【 摘 要 】

References(22)Cited-By(3)Multiple time delays and complex interactions among loops constitute a major problem in the design of controllers for multivariable processes. This paper proposes a new IMC method based on an equivalent model using the Smith delay compensator for multivariable systems with multiple time delays. By decomposing the MIMO systems into a set of equivalent independent single loops including delay compensations, poor performance caused by interactions and time delays is avoided. Using these single loop controllers, PID controllers with a first-order lag filter structure are designed; moreover, they can be potentially employed in various industrial applications. Simulation results demonstrate the flexibility and effectiveness of the proposed method.

【 授权许可】

Unknown