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COMPARISON OF CONTROL STRATEGIES FOR TEMPERATURE CONTROL OF BUILDINGS

Abstract:

In this paper, a classic controller such as PID and more advanced controllers such as fractional order model predictive control (MPC) were designed and compared for the temperature control of buildings. In a previous study by the authors, fractional calculus was incorporated into the design of the weighting factors of a classic MPC. The designed fractional order MPC outperformed the classic MPC. In this work, based on the same building model, and specifications, such as settling time, overshoot, and steady-state error, we designed traditional discrete PID controllers with anti-reset windup. Then, an improved FOMPC was compared with these two PID controllers and classic MPC. As a result, a numerical analysis of some indices shows that the FOMPC performs better than the designed PIDs in performance but with slightly more control effort. Also, it is shown that a meticulously tuned PID controller produces similar results to a FOMPC when designed appropriately.