Model Predictive Control of Building Heating System

Conventional control strategies of a building heating system such as weather-compensated heating control cannot make use of the energy supplied to a building (e.g. solar gain in case of sunny day). On the other hand, dropout of outside temperature can lead to underheating of a building. Model predictive controller presented in the article combines weather forecast and thermal model of a building and predicts trends of inside temperature. By this, it can utilize thermal capacity of a building and minimize energy consumption. It can also maintain inside temperature at desired level independent of outside weather conditions. The controller was tested on a real building and results were compared with the present heating control.

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