Title :
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
fDate :
2/1/2000 12:00:00 AM
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;
Journal_Title :
Industrial Electronics, IEEE Transactions on
