I n the first part of the publication [l] an algorithm for the adaptation of the static optimum was represented. This part demonstrates the application of this algorithm to a specific problem. The problems, which are connected with the application of the choice of the object function, of making the process model available and of the realizable economic effects are elaborated. The example of the tested on-line control of a stirred tank reactor shows the advantages and disadvantages of the used algorithm. kijnnen diese Forderungen erfiillen, wenn wie im vorliegenden Fall die Qualitat des Produktes (Gebrauchswert) als unveranderlich angesetzt werden kann [4]. Solche
The industrial continuous fermentation for the production of microbial protein is like any real process subject to disturbances. The considerable social expenditures involved in production make it necessary to restrict the negative consequences of these disturbances to a minimum by means of suitable measures. One such measure is the computer-aided adaptation of the static optimum. For the reaction on nonmeasurable disturbing inputs an algorithm is given containing the st.eps data filtering, adaption of process model and optimization, and the solution of the datafiltering problem in the widest sense by spline functions is discussed. The application of this algorithm to a specific problem of process control is demonstrated in [l]. ZusammenfassnngDie groatechnische kontinuierliche Fermentation zur Gewinnung von mikrobiellem EiweiB ist wie jeder reale ProzeB Stdrungen unterworfen. Die rnit der Produktion verbundenen beaohtlichen gesellschaftlichen Aufwendungen machen es notwendig, die negativen Auswirkungen derartiger Stdrungen durch geeignete Maanahmen auf ein Minimum zu reduzieren. Als derartige MaBnahme ist die Nachfiihrung des statischen Optimums mit Hilfe eines Prozeareohners geeignet. Zur Reaktion auf nichtmeBbare Storungen wird ein adaptiver Algorithmus mit den Arbeitsschritten Datenfilterung, Modellnachfiihrung und Optimierung angegeben und insbesondere das Problem d-r Datenfilterung im weiteren Sinne mit Splinefunktionen ausfiihrlich dargestellt. Die Anwendung dieses Algorithmus auf ein spezielles Problem der ProzeBsteuerung wird in einem zweiten Teil dieser Veroffentlichung [ 13 demonstriert.
In parts 1–3 of the publication exceptionally stationary processes were used as information sources. In this fourth part the application of transition states for the adaption of the static model is investigated. A solution on the basis of a simple disturbance model is proposed and an evaluation of this procedure is given.
In the second part of the publication [1] the application of an adaptive algorithm for the adaptation of the static optimum was orientated on a specific problem.In this third part the indirect determination of the productivity from the nitrogen balance used in the adaptive algorithm is supplied, and control algorithms founded on the nitrogen balance are given in order to complete the algorithm.
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