Designing a PID controller for slab temperature control system

Kien Ngoc Vu Kien Ngoc Vu,Nga Thi Thanh Tran Nga Thi Thanh Tran,Tich Luong Ward Tich Luong Ward

doi:10.30574/gjeta.2021.8.2.0108

Kien Ngoc Vu Kien Ngoc Vu, Nga Thi Thanh Tran Nga Thi Thanh Tran + Show 1 more

Open Access

https://doi.org/10.30574/gjeta.2021.8.2.0108

Copy DOI

Abstract

The problem of heating slab is a very important and highly applicable problem in the material processing industry. This paper presents a method to design a PID controller according to the characteristic polynomial method to control the temperature for slab based on the transfer function model. The parameters of the PID controller are determined based on the parameters of the slab model, the heating furnace model, the converter model. The simulation results show that: the PID controller is capable of controlling the temperature of the slab to the desired temperature without over-adjusting.

Highlights

In many technological processes, heating materials is an important step
This paper presents a method to design a PID controller according to the characteristic polynomial method to control the temperature for slab based on the transfer function model
The parameters of the PID controller are determined based on the parameters of the slab model, the heating furnace model, the converter model

Summary

Introduction

In many technological processes, heating materials is an important step. Heating only changes the properties of materials (mainly metal materials) by changing the internal structure without changing the shape and size of materials. The necessary requirement in the heating problem is to control the temperature of the heating furnace according to the temperature requirements of the slab to ensure the technological requirements of the slab. Option 1 gives accurate results in measuring the temperature in the slab, but it is necessary to install temperature sensors in many places on the slab to determine the heat distribution in the slab. With option 2, using the heat transfer model, the heat transfer equation in the workpiece, the temperature of the slab can be determined based on the furnace temperature. The method of modeling slab as a transfer function [3, 4, 5, 6] is very suitable for the design of the controller. In this paper, we use the transfer function slab model to design the PID controller.

Material and methods

Z 1C 1 æççççççççççççès

Conclusion