Open AccessOn tuning FO[PI] controllers for FOPDT processes
Author(s) -
Badri V.,
Tavazoei M.S.
Publication year - 2013
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2013.2457
Subject(s) - control theory (sociology) , pi , pid controller , dead time , computer science , mathematics , control engineering , engineering , control (management) , temperature control , artificial intelligence , statistics , geometry
A method recently proposed for tuning fractional order [proportional integral] (FO[PI]) controllers is investigated. This tuning method, when applied in control of first‐order plus dead time (FOPDT) processes, can ensure the desired phase margin, the desired gain crossover frequency and the flatness of the phase Bode plot at such a frequency. The necessary and sufficient condition for the applicability of the aforementioned tuning method is derived. Also, it is shown that this condition can be used in obtaining the achievable performance region of the tuning method in the gain crossover frequency‐phase margin plane.