ชุดทดลองระบบควบคุมอุณหภูมิโดยใช้การควบคุมฟัซซีลอจิกร่วมกับพีไอดี

Supornpit  Na Pibul; Sofwan  Chemoh; Suraiya  Yunuh

Authors

Supornpit Na Pibul Department of Electrical Engineering Faculty of Engineering Princess of Naradhiwas University Amphoe Mueang, Narathiwat Province 96000
Sofwan Chemoh Department of Electrical Engineering Faculty of Engineering Princess of Naradhiwas University Amphoe Mueang, Narathiwat Province 96000
Suraiya Yunuh Department of Electrical Engineering Faculty of Engineering Princess of Naradhiwas University Amphoe Mueang, Narathiwat Province 96000

Keywords:

Temperature process control, Fuzzy logic, PID

Abstract

This paper presents to introduce the experiment set for temperature control in the chamber using fuzzy logic controller with PID controller. The process is composed of a heater installed in the chamber. The temperature is controlled by supplying voltage via voltage controller to heater and the cooling fan. The temperature sensor is an IC TMP36 which is installed in the chamber to detect the internal temperature. The working temperature range is within 25 – 70 degree Celsius. The control system is using MATLAB/Simulink program. The interface between controller and process is operated by Arduino Mega 2560 microcontroller. The experiment process, the temperature to be controlled is changed from 50 degree Celsius to 60 and 70 degree Celsius respectively, to compare the performance of fuzzy logic, PID and fuzzy logic with PID controllers. The results showed that the use of the fuzzy logic controller in combination with the PID controller provided the best temperature control efficiency, with a rise time of 15 seconds (60 degree Celsius) and 18 seconds (70 degree Celsius). The highest overshoot values about 2 percent.

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