大滞后系统最优PID参数自整定控制方法

Optimal PID Parameters Self-adjusting Control Methods On Large Time Delay System

为了解决大滞后系统控制难度大的问题,文章针对非线性、大时变、大延迟的控制对象,设计了一种带嵌入式函数的最优PID参数自整定控制方法,通过仿真实验与ISTTE最优准则下最优PID参数自整定控制方法进行了比较,给出了仿真波形及其分析,通过仿真实验结果表明该控制方法不仅具有PID控制器高精度、稳定性、鲁棒性高的优点,另外可以缩短系统的调节时间,有效地抑制系统的超调,从而可以有效改善大滞后系统的控制效果。

In order to solve the difficulty control problem of large time delay system,the article designs a optimal PID parameters self-adjusting control method with embedded function.The control method aims at the systems with nonlinear,large time-varying and time delay.The improving control method is compared with the optimal PID parameters self-adjusting control methods at ISTTE optimal standard by simulation experiment.The simulation wave patterns and analysis are given.The experiment results indicate that the improving control method possess a lot of advantages.The improving control method has the properties of high-accuracy,stability and High Robust which exist in PID controller.The control method also can shorten the sdjusting time of the system and restrain overshoot effectively.So the improving control method can reform the control effect of large time delay system.