The direct Nyquist array design of PID controllers

Author

Khuen Ho, Weng ; Heng Lee, Tong ; Xu, Wen ; Zhou, Jinrong R. ; Beng Tay, Ee

Author_Institution

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

Volume

47

Issue

1

fYear

2000

fDate

2/1/2000 12:00:00 AM

Firstpage

175

Lastpage

185

Abstract

The gain and phase margins design for single-input single-output proportional-integral-derivative controllers is extended to the multivariable system´s Nyquist array. The design method allows the user to specify the robustness and performance of the system through gain and phase margin specifications. The unformatted design procedure given in this paper is well suited for implementing self-tuning PID control for multivariable processes. A laboratory implementation is given in the paper to demonstrate the design method

Keywords

Nyquist criterion; control system synthesis; multivariable control systems; robust control; three-term control; PID controllers; direct Nyquist array design; gain margins design; multivariable system; phase margins design; proportional-integral-derivative controllers; robustness; self-tuning PID control; single-input single-output controllers; unformatted design procedure; Automatic control; Control systems; Design methodology; Industrial control; Phased arrays; Pi control; Process control; Proportional control; Robustness; Three-term control;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/41.824140

Filename

824140