Automatic tuning algorithm of the PID controller using two Nyquist points identification

Author

Shin, Chang-hoon ; Yoon, Myung-Hyun ; Park, Ik-Sobo

Author_Institution

Syst. & Commun. Res. Lab., Korea Electr. Power Res. Inst., Taejon, South Korea

fYear

1997

fDate

29-31 Jul 1997

Firstpage

1225

Lastpage

1228

Abstract

This paper deals with an advanced automatic tuning algorithm of the PID controller using two Nyquist points identification. The critical point on the Nyquist plot and its neighboring point are identified from the modified relay feedback experiment and used to make the formulas to determine the parameters of the PID controller. The formulas are derived from the dominant poles approximation and placement method. We can consider the time domain response of the process with damping ratio (ζ) as a design specification

Keywords

Nyquist stability; damping; feedback; identification; pole assignment; three-term control; time-domain analysis; tuning; Nyquist plot; Nyquist points identification; PID controller; automatic tuning algorithm; damping ratio; design specification; dominant poles approximation; modified relay feedback experiment; pole placement; time domain response; Automatic control; Communication system control; Control systems; Damping; Feedback; Frequency; Laboratories; Relays; Three-term control; Tuning;

fLanguage

English

Publisher

ieee

Conference_Titel

SICE '97. Proceedings of the 36th SICE Annual Conference. International Session Papers

Conference_Location

Tokushima

Type

conf

DOI

10.1109/SICE.1997.624987

Filename

624987