An online activation moments determination for steady-state optimization

• Published in: Computers in industry Vol. 2; no. 3; pp. 189 - 197
• Main Authors: Goscinski, Andrzej, Zielinski, Krzysztof
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.10.1981; Elsevier Sequoia S.A
• Subjects: Algorithms; Computer control systems; Computer programming; Control systems; decision-making; dynamic priorities of control computer scheduling algorithms; multilayer structures; Optimization; optimization algorithm activation moments; scheduling algorithm information; dynamic priorities of control computer scheduling algorithms; Computer control systems; scheduling algorithm information; multilayer structures; decision-making; optimization algorithm activation moments
• ISSN: 0166-3615; 1872-6194
• DOI: 10.1016/0166-3615(81)90058-0

A method for an activation moments determination of steady-state optimizing control is developed for systems subject to disturbance inputs. This method is based on the deviation between the performance index of the controlled process and its optimal value. The estimate of the deviation is online, carried out based on the approximation of the performance index optimal value, which is a function of the disturbance inputs. It is assumed that the disturbance inputs as a representation of disturbances are available on the basis of measure and predication. The system implemented proposed method cooperates in the natural way with the scheduling algorithm of the control computer. A practical utility of the proposed approach has been presented by application to the control of a simulated stirred-tank reactor. The proposed method for the activation moments determination has been compared with the periodical activation method.