基于Taylor展开法整定MIC-PID控制器参数

Tuning IMC-PID controller parameter based on Taylor expansion

针对一类不稳定时滞过程,采用双环控制结构,首先使广义对象(内环)稳定,然后用Taylor级数展开法,根据内模控制原理设计外环控制器,得到等效的PID控制器参数的整定方法。仿真结果表明,整定后的系统不但具有良好鲁棒性,而且调节快速,适合于工程实际应用。

A double loop structure is employed to a class of unstable process with time delay.After stabilizing the inner loop,design the feedback controller according to the internal model control（IMC）theory after Taylor expansion,and give out a PID controller.Extensive simulations have shown that the proposed methods can provide not only high robustness,but also reduce settle time for unstable processes.