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Control of a thermal system: an application study


J. Kralova, M. Herceg

10th International Confererence PROCESS CONTROL 2010, Kouty nad Desnou, Czech Republic, pp. C089a-1-C089a-11

The aim of the paper is to design a simple and low cost control scheme for a thermal system. The thermal system is characterized with two manipulated inputs (heating and cooling element) and four measured outputs that are coupled with nonlinear dynamics. The control objective is to follow a desired temperature reference while satisfying input constrains and remain energy efficient. Model predictive control (MPC) is one of the approaches that can handle all of these requirements. However, implementation of MPC can be expensive because an optimization problem has to be solved repetitively. To avoid this difficulty, a discrete-time PID controller with a static compensator is applied. MPC is used as a benchmark for tuning PID controller that offers a suitable trade-off between quality of set-point tracking and energy savings. Obtained results show that PID controller with static compensator is able to provide desired control performance.


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% Autogenerated BibTeX entry
@InProceedings { KraHer:2010:IFA_3588,
    author={J. Kralova and M. Herceg},
    title={{Control of a thermal system: an application study}},
    booktitle={10th International Confererence PROCESS CONTROL 2010},
    address={Kouty nad Desnou, Czech Republic},
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