Diffuse and pid controllers for a thermal process with wireless supervision using android and arduino
Keywords:
Arduino, Peltier cell, fuzzy controller, PID controller, PWMAbstract
In the process of water purification for human consumption, the control of the temperature contributes to its health and hygiene. The goal of this study was to compare the performance of a traditional controller with a fuzzy controller for this case study. The control strategies were designed and simulated in Matlab® software, and they were implemented in Atmega microcontroller of Arduino; in both cases, simulation and empirical setup, we considered the settling time, overshoot and steady state error to compare the controllers. The fuzzy controller eliminated the overshoot and reduced the settling time by 76 % in simulation, in comparison to the PID controller. In the experimental data, the fuzzy controller did not show overshoot and decreased the settling time by 28 % with respect to the other controller. The steady state error was zero in both controllers for simulation and for the empirical setup. The fuzzy controller was faster and more stable, for this reason, we concluded that this control strategy is appropriate to regulate the temperature in this process.
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