Application of GWO-PID in Liquid Level Control of Continuous Caster Crystallizer
In order to effectively control the liquid level of the continuous caster crystallizer at the target value and solve the modeling difficulties caused by system interference,nonlinear,and time-varying factors,the grey wolf optimization algorithm GWO is introduced to optimize and self-adjust the PID control parameters.Based on the adjustment time and steady-state error of the continuous caster crystallizer liquid level system,an objective function is constructed.The simulation results show that the step response curve of the GWO-PID system is smoother,with an overshoot of 7.08％,which is smaller than other types of PID controllers;the response speed is faster,with adjustment time of 5.03s,less than other types of PID controllers,which can significantly improve the control speed and accuracy of the system.
万方数据
维普
