Order and parameter selections for active disturbance rejection controller

被引：13

作者：

Zhang, Chao ^{[1
,2
]}

Zhu, Ji-Hong ^{[1
]}

Gao, Ya-Kui ^{[2
]}

机构：

[1] State Key Laboratory on Intelligent Technology and Systems, Department of Computer Science and Technology, Tsinghua University, Beijing

[2] Flight Control and Hydraulic Laboratory, First Aircraft Institute of AVIC, Xi'an, 710089, Shaanxi

来源：

Kongzhi Lilun Yu Yingyong/Control Theory and Applications | 2014年 / 31卷 / 11期

关键词：

ADRC; Frequency analysis; Order selection; Parameter tune;

D O I：

10.7641/CTA.2014.40055

中图分类号：

学科分类号：

摘要：

We investigate the parameter selection of active disturbance rejection controllers (ADRC) of different orders. For a linear time-invariant system, the linear ADRC can be converted to a composite control system, whose feedback compensator is a phase-lead element in series with an integer and pre-filter is a phase-lag element cascading a differentiator. The ratio of the observer bandwidth to the controller bandwidth determines the maximum phase-lead angle of the feedback compensator, while the frequency band determines the location of the maximum phase-lead angle. In addition, the higher the order of ADRC, the larger the maximum amount of phase-lead angle will be under the same ratio. The practical way of using this method in industrial process is given, which can significantly shorten the trial and error process and facilitate the application for engineers. ©, 2014, South China University of Technology. All right reserved.

引用

页码：1480 / 1485

页数：5

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