Abstract Self-tuning algorithms based on modified minimum variance criteria have been implemented and tested in a commercial microcomputer based process automation system. The algorithms have been realized on two levels, physically in separate microcomputer units. This have been done in a natural way by separating the control and parameter estimation tasks. Because communication between the microcomputers takes place periodically after certain time interval, which usually is greater than the basic control interval, the parameters are not renewed after each control interval as usually done. The minimum variance criteria has been applied to tune also standard PI-type algorithms. The paper discusses on experiences and details in realization.


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    Title :

    A two level realization of self-tuning regulator in a multi-microcomputer process control system


    Contributors:
    Halme, A. (author)


    Publication date :

    1980-01-01


    Size :

    17 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




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