Indoor temperature regulation on small scale model using Matlab-based regulators

This paper describes indoor temperature regulation. Indoor environment temperature regulation is most frequent type of regulation. To achieve this goal a small scale model was built with software support as well. This system model is composed of the incubator, DC controlled dimmer, ME - RedLab data acquisition module as AD/DA converter, a Matlab-based controller, GUI (Graphical User Interface), and an NTC temperature sensor. System identification using step response was carried out to determine a mathematical model of the system which was implemented in Simulink program package. Within the Simulink model P, PI, PID and fuzzy controller were designed. Results acquired during simulation were successfully applied on the real system. Both simulation and experimental results are consistent. It is shown that system developed on simulation level can be translated to the real system which simplifies the regulator design.