Kalman-PSO-PID controller for thermal inertia system in high-speed bar temperature control
SUN Shuixiao
Abstract：The stability of temperature control in the high-speed rolling process of high-speed bar production lines is crucial to the final product quality.To address the issues of slow dynamic response,significant disturbance influence,and limited temperature measurement accuracy in the thermal control system of the high-bar hot zone,this paper proposes an optimized control strategy that integrates Kalman filtering,PID control,and Particle Swarm Optimization(PSO).Firstly,the thermal dynamics of the steel bar are modeled as a second-order thermal inertia system,incorporating external disturbances and measurement noise to simulate actual industrial conditions.Subsequently,a Kalman filter is designed to estimate the system states and mitigate measurement noise,thereby enhancing feedback accuracy.On this basis,PSO is employed to globally optimize the PID controller parameters(Kp,Ki,Kd),aiming to achieve precise temperature regulation and disturbance rejection.Simulation results in Simulink demonstrate that the proposed control strategy effectively reduces steady-state error and overshoot,improves system robustness against external disturbances,and enhances response speed,providing theoretical support and engineering reference for the intelligent temperature control system of high-bar production lines.
Keywords：high-speed bar temperature controlKalman-PID-PSO optimizationthermal inertia systemdisturbance rejection
Publication Date：2025-07-20
Online Publishing Date：2025-09-08(First online date of this platform, not the publication date of the document)
Pages：6( 85-90 )