Exact parameter estimation from relay autotuning under static load disturbances
Küçük Resim Yok
Tarih
2001
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Ieee
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Obtaining the parameters for PID controllers based on limit cycle information from the process in a relay controlled feedback loop has become an accepted practical procedure. If the form of the plant transfer function is known, exact expressions for the limit cycle frequency and amplitude can be derived in terms of the plant parameters, so that their measurements, assumed error free, can be used to calculate the parameter values. In the literature to date the solutions have only been considered for odd symmetrical limit cycles which will not be the situation when constant disturbances exist. Use of these expressions will lead to errors when the limit cycle is not odd symmetrical. This paper reports on exact parameter estimation for stable and unstable FOPDT or SOPDT plant transfer functions from relay autotuning under static load disturbances where the limit cycles are asymmetrical.
Açıklama
American Control Conference (ACC) -- JUN 25-27, 2001 -- ARLINGTON, VA
Anahtar Kelimeler
Identification, Derivation, Feedback
Kaynak
Proceedings of The 2001 American Control Conference, Vols 1-6
WoS Q Değeri
N/A
Scopus Q Değeri
N/A
