摘要
针对传统PID控制在大惯性、纯迟延的电阻炉温度控制系统中易出现积分饱和的问题,基于原始变速积分PID算法原理,提出一种改进的变速积分PID控制策略,通过引入误差与设定值比值的绝对值作为分段依据,同时结合余弦函数,构建了非线性函数f improved(x)来自适应调节积分项权重系数。利用Matlab软件在4种不同设定值下,对改进的变速积分PID、原始变速积分PID和普通PID算法在电阻炉温度控制系统中的性能进行了仿真对比。结果表明,基于改进的变速积分PID算法的控制能够显著加快系统调节速度,有效降低超调量,并提升系统的稳定性,对工业热处理设备的温度控制具有一定的参考意义。
Aiming at the traditional PID control in the large inertia,pure delay resistance furnace temperature control system was prone to the problem of integral saturation,based on the principle of the original variable-speed integral PID algorithm,an improved variable-speed integral PID control strategy was proposed,which was based on the introduction of the absolute value of the ratio of the error to the set value as the basis of the segmentation,and at the same time combines with the cosine function to construct a nonlinear function,fimproved(x),from the adaptive Adjustment of integral term weight coefficients.The performance of the improved variable speed integral PID,the original variable speed integral PID and the ordinary PID algorithm in the temperature control system of the resistance furnace was simulated and compared under four different set values using Matlab software.The results show that the control based on the improved variable speed integral PID algorithm can significantly accelerate the system regulation speed,effectively reduce the overshooting amount,and improve the stability of the system,which is of certain reference significance for the temperature control of industrial heat treatment equipment.
作者
李爽爽
盛茹吉
曹玉波
LI Shuangshuang;SHENG Ruji;CAO Yubo(School of Information and Control Engineering,Jilin University of Chemical Technology,Jilin City 132022,China;Project Department,China Petroleum Engineering and Construction Co.,Ltd.,Beijing 100010,China)
出处
《吉林化工学院学报》
2025年第7期57-61,共5页
Journal of Jilin Institute of Chemical Technology
关键词
改进的变速积分PID
变速积分PID
电阻炉
温度控制
improved variable speed integral PID
variable speed integral PID
resistance furnace
temperature control
