DESIGN AND STABILIZATION CONTROL OF ELECTRIC HEATING FURNACE TEMPERATURE USING DIGITAL PID CONTROLLER

Abstract

The electric heating furnace is a nonlinear system, making traditional methods for identifying and finding parameters for the temperature stabilization controller time-consuming and prone to errors. This paper introduces the integration of Arduino with Matlab to facilitate the identification process and parameter finding for the controller more effectively, making temperature stabilization control more convenient and accurate. First, the paper describes the hardware construction of the system, including the design of the furnace with LM35 temperature sensors and the use of Arduino to read temperature data. Subsequently, the connection between Matlab and Arduino is illustrated for data processing and parameter determination of the PID controller. Two main methods used for finding PID parameters are the Ziegler-Nichols method and the tuning method. The results indicate that the digital PID controller not only helps minimize temperature fluctuations but also improves the system’s energy efficiency. Practical experiments and simulations have demonstrated that integrating Arduino and Matlab in the heating furnace control system is an effective solution, yielding more optimal results compared to traditional methods.