Comparative study of conventional PID and fuzzy logic controllers applied to an electric oven

Abstract

This paper proposes a comparative study of conventional proportional-integral-derivative (PID) and fuzzy logic controllers for the temperature control of an electric oven. This study gives an overview of conventional PID and fuzzy logic controllers to investigate their applicability on the temperature control of an electric oven. This study is all the more important as the PID controller is mainly used for a system control when the mathematical representation is known; contrary to the fuzzy logic control concept, which is more and more used in applications and does not require a model. To compare the performances of the two controllers, a reference temperature of 100° is fixed for an electric oven of dimensions (Length: 150 cm, Width: 131 cm, Depth: 150 cm) with a frontal opening. The simulation results performed under Matlab-Simulink were compared in terms of control performance, including steady state error, response time and system stability. The evaluation shows that the fuzzy logic controller provides the best performance.