分数时滞DAHLIN数字调节器

A DAHLIN REGULATOR WITH FRACTIONAL TIME DELAY

本文提出了基于分数时滞概念的Dahlin数字调节器,解决了Dahlin算法的分数时滞控制问题。通过引入分数时滞整定参数γ,实现了不稳定逆系统的控制,这不仅可以准确地描述纯时滞过程,而且可将高阶过程合理地简化为低阶分数时滞模型,提高了系统的控制品质。文中给出的仿真例子对所得的结论进行了验证。

This paper introduces a new approach,which is based on the fractional time delay and Dahlin digital control algorithm. The control of unstable inverse system with fractional time delay has been realized by means of a tuning parameter γ so as not only to describe the dead time process exactly, but also rationally to simplify the higher order process to a lower order model having fractional time delay. Therefore,the best performance is obtained when the estimate is closest to the apparent process time delay. This property of the algorithm is illustrated by simulation examples.