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Dynamic delayed controllers for recycling systems with internal delays and complex poles
Author(s) -
VazquezGuerra R. J.,
MarquezRubio J. F.,
HernándezPérez M. A.,
del MuroCuéllar B.,
SánchezGarcía J. C.
Publication year - 2017
Publication title -
asia‐pacific journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.348
H-Index - 35
eISSN - 1932-2143
pISSN - 1932-2135
DOI - 10.1002/apj.2146
Subject(s) - control theory (sociology) , internal model , stability (learning theory) , process (computing) , simple (philosophy) , instability , control (management) , order (exchange) , computer science , control system , class (philosophy) , control engineering , engineering , economics , physics , operating system , philosophy , epistemology , machine learning , artificial intelligence , mechanics , electrical engineering , finance
Recycling systems are a challenging problem from the control viewpoint due to their detrimental effects. This paper proposes a simple way to stabilize and control a class of high‐order recycling systems with time delays, internal instability, and possible complex conjugate poles. The strategy proposes P / P I / P D / P I D ‐like delayed controllers. Conditions to guarantee the stability of the controlled closed‐loop system are stated. The performance of the proposed delayed controllers is illustrated via numerical simulations of a high‐order unstable recycling system and an industrial chemical process.