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Optimal state changeover control of a multivariable system using a minicomputer
Author(s) -
Jarvis R. C. F.,
Wright J. D.
Publication year - 1972
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450500414
Subject(s) - changeover , multivariable calculus , minicomputer , computer science , state (computer science) , control theory (sociology) , control (management) , control engineering , engineering , algorithm , telecommunications , artificial intelligence , operating system , transmission (telecommunications)
A study of the application of the calculation and implementation of an open loop optimal changeover policy for a multivariable system on a minicomputer has been made. If the required changeover time and control time interval have been specified, a switching policy for the controls may be calculated using standard linear programming techniques. The multivariable system was an analog computer simulation of a liquid‐liquid extraction column. By repeated use of the procedure with different overall changeover times, a “best” changeover policy could be determined. The criterion for this policy was a minimum changeover time with the restriction that the sum of squared errors between the required and actual final states was less than a specified small value. Practical as opposed to theoretical small values of this error criterion were used.