一种基于内模控制的分数阶控制器设计

目的为了解决分数阶控制器参数整定复杂问题,引入内模控制思想,从而得到分数阶内模控制器控制的被控对象。方法依据最大灵敏度整定所得分数阶内模控制器中的参数,避免参数整定的盲目性。结果相对于传统的分数阶控制器,基于内模控制思想设计得到的分数阶内模控制其设定值跟踪及抗干扰性能更优。结论仿真结果表明基于文中方法设计所得的分数阶内模控制器在模型失配时,仍具有较好的鲁棒性和控制精度。

A Design of Fractional Order Controller Based on Internal Model Control

The work aims to introduce the internal model control thought, thus obtaining the objects controlled by the fractional order internal model controller, to solve the problem of fractional order controller parameter setting complexity. According to the parameters in the fractional order internal model controller obtained by the setting of the maximum sensitivity, the blindness of parameter setting was avoided. Compared with the traditional fractional order controller, the set value tracking and anti-interference ability of fractional order internal model control designed based on the internal model control thought were better. The simulation results show that, for the model mismatch of the fractional order internal model controller designed based on the proposed method, it still has better robustness and control accuracy.