A PID autotuner utilizing GPC and constraint optimization

Arne Henningsen, Anders Christensen, Ole Ravn

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    A solution to the PID autotuning problem is presented which involves constraining the parameters of a discrete second-order discrete-time controller. The integrator is forced into the regulator by using a CARIMA model. The discrete-time regulator parameters are calculated by optimizing a generalized predictive control criterion, and the PID structure is ensured by constraining the parameters to a feasible set defined by the discrete-time Euler approximation of the ideal continuous-time PID controller. The algorithm is extended by incorporating constraints on the amplitude and slew-rate of the control signal. Simulation studies for a system of coupled tanks have indicated that the method performs well, and that signal limitations can be included in a straightforward manner
    Original languageEnglish
    Title of host publicationProceedings of the 29th IEEE Conference on Decision and Control
    VolumeVolume 3
    Publication date1990
    Publication statusPublished - 1990
    Event29th IEEE Conference on Decision and Control - Honolulu, HI, United States
    Duration: 5 Dec 19907 Dec 1990
    Conference number: 29


    Conference29th IEEE Conference on Decision and Control
    Country/TerritoryUnited States
    CityHonolulu, HI

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