PID controller design based on generalized stability boundary locus to control unstable processes with dead time
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Dosyalar
Tarih
2018-06-22
Yazarlar
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Dergi ISSN
Cilt Başlığı
Yayıncı
IEEE
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Attribution-NonCommercial-ShareAlike 3.0 United States
Attribution-NonCommercial-ShareAlike 3.0 United States
Özet
This paper proposes a method so that all PID controller tuning parameters, which are satisfying stability of any unstable time delay processes, can be calculated by forming the stability boundary loci. Processes having a higher order transfer function must first be modeled by an unstable first order plus dead time (UFOPDT) transfer function in order to apply the method. Later, UFOPDT process transfer function and the controller transfer function are converted into normalized forms to obtain the stability boundary locus in (KKc,KKc(T/ Ti)), (KKc,KKc(Td /T)) and (KKc (T / Ti), KKc (Td/T)) planes for PID controller design. PID controller parameter values achieving stability of the control system can be determined by the obtained stability boundary loci. The advantage of the method given in this study compared with previous studies in this subj ect is to remove the need of re-plotting the stability boundary locus as the process transfer function changes. That is, the approach results in somehow generalized stability boundary loci for unstable plus time delay processes under a PID controller. Application of the method has been clarified with examples.
Açıklama
Anahtar Kelimeler
Controllers, Delay Control Systems, Electric Control Equipment, Flight Control Systems, Proportional Sontrol Systems, Stability, Three Term Control Systems, Time Delay, Transfer Functions
Kaynak
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N/A
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Sayı
Künye
Atic, S., Kaya, I. (2018).PID controller design based on generalized stability boundary locus to control unstable processes with dead time. 26th Mediterranean Conference on Control and Automation (MED). https://doi.org/10.1109/med.2018.8442568
