Abstract:

The parameters of PID controller determine the stability and speed of tension control system, so it is important to study the parameter tuning optimization of classical PID controller in winding tension control. The PID tension controller based on the modified whale algorithm is designed by combining PID and modified whale optimization algorithm with winding tension control as an entry point. The improved whale algorithm (L?WOA) is combined with PID in order to improve its convergence speed and convergence accuracy when rectifying the PID parameters. A mathematical model and a dynamic torque balance equation are developed to analyze the effect of wire speed and web diameter on web tension. The parameters are optimized using the modified whale algorithm and various other algorithms, respectively, and the results show that the PID controller optimized by the improved whale algorithm proposed in this paper has the advantages of rapid response, more steady output, sturdy anti?interference ability and better robustness when the PID controller is controlled.

Key words: Constant tension control, PID parameter tuning, Improved whale optimization algorithm

摘要：

PID控制器的参数决定张力控制系统的稳定性和速度，因此研究收卷张力控制中经典PID控制器参数整定优化问题具有重要意义。以卷绕张力系统为切入点，结合PID和改进的鲸鱼优化算法，设计了基于改进鲸鱼算法(L?WOA)的PID张力控制器；为了提高PID整定参数方法的收敛精度和速度，在进行整定时结合了改进鲸鱼算法；建立数学模型和动态转矩平衡方程，分析了线速度和卷径对卷材张力的影响；分别使用改进鲸鱼算法和其他多种算法进行了参数优化。仿真结果表明，采用改进鲸鱼算法优化PID的控制策略具有响应速度快、控制输出稳定、抗干扰能力强、鲁棒性好等优点。

关键词: 恒张力控制, PID 参数整定, 改进鲸鱼优化算法