Title :
Reversed frame normalizing design of a decentralized control system for a binary distillation column
Author :
Raisch, Jörg ; Lang, Lothar ; Gilles, E.-D.
Author_Institution :
Inst. fuer Systemdynamik & Regelungstechnik, Stuttgart Univ., Germany
Abstract :
The reversed frame normalizing design technique of Y.S. Hung and A.G.F. MacFarlane (1982) is modified to yield decentralized controllers. This modified technique is applied to a binary distillation control problem. It results in a simple decentralized control law that proves to be superior to conventionally designed PI-controllers and no worse than higher-order decentralized controllers based on constrained H 2-minimization. The basic ideas of this linear multivariable design method are summarized. Then, modifications necessary to achieve (block) diagonal controller transfer-function matrices are outlined. Implications for achievable closed-loop performance are discussed. They are seen to follow directly from the theory of optimal matrix scaling
Keywords :
chemical technology; closed loop systems; control system synthesis; decentralised control; distillation; transfer functions; binary distillation column; closed-loop performance; decentralized control system; diagonal controller transfer-function matrices; linear multivariable systems; reversed frame normalizing design; Control systems; Design engineering; Distillation equipment; Distributed control; Eigenvalues and eigenfunctions; Frequency; Industrial control; Least squares approximation; Proportional control; Robust stability;
Conference_Titel :
Decision and Control, 1990., Proceedings of the 29th IEEE Conference on
Conference_Location :
Honolulu, HI
DOI :
10.1109/CDC.1990.203782
