Self-tuning IMC-PID control with interval gain and phase margins assignment

Author

Ho, W.K. ; Lee, T.H. ; Han, H.P. ; Hong, Y.

Author_Institution

Dept. of Electr. Eng., Nat. Univ. of Singapore, Singapore

Volume

9

Issue

3

fYear

2001

fDate

5/1/2001 12:00:00 AM

Firstpage

535

Lastpage

541

Abstract

The idea of pole-region assignment is extended to interval gain and phase margin assignment. The internal model control proportional-integral-derivative (IMC-PID) design is examined from the frequency domain point of view. Equations for typical frequency domain specifications such as gain margin, phase margin and bandwidth are derived for the IMC-PID design. The gain and phase margins are monitored in real time and a self-tuning controller with interval gain and phase margin assignment is proposed. An implementation example in the laboratory is also given

Keywords

adaptive control; control system synthesis; frequency-domain synthesis; pole assignment; process control; process monitoring; self-adjusting systems; three-term control; frequency domain specifications; internal model control-PID design; interval gain; phase margins assignment; pole-region assignment; self-tuning controller; Bandwidth; Control systems; Equations; Frequency domain analysis; Monitoring; Pi control; Process control; Proportional control; Robust control; Three-term control;

fLanguage

English

Journal_Title

Control Systems Technology, IEEE Transactions on

Publisher

ieee

ISSN

1063-6536

Type

jour

DOI

10.1109/87.918905

Filename

918905