A Design Method of PID Controllers for First-Order Lag with Dead Time Based on Partial Model Matching

• Published in: Transactions of the Institute of Systems, Control and Information Engineers Vol. 13; no. 1; pp. 46 - 52
• Main Authors: KITAMORI, Toshiyuki, SEBE, Noboru, AKAMATSU, Takafumi
• Format: Journal Article
• Language: Japanese
• Published: THE INSTITUTE OF SYSTEMS, CONTROL AND INFORMATION ENGINEERS (ISCIE) 15.01.2000
• Subjects: partial model matching; PID control; reference model
• ISSN: 1342-5668; 2185-811X
• DOI: 10.5687/iscie.13.46

This paper is concerned with a design method of robust PID controllers for first-order lag with dead time. PID controllers have been widely used as they are easy to be tuned up. Ziegler-Nichols rule gives the parameters of a PID controller simply from the time constant, the dead time and the gain of the given plant. Although the rule is well-known and widely used, designed PID controllers does not attain the satisfactory performance even with the given nominal plant. This paper proposes a simple design method of robust PID controllers based on partial model matching. The proposed method gives the time constant of the closed-loop systems simply from the time constant and the dead time of the given plant.