An improved self-adaptive tracking differentiator

Author

Qiao, Guohui ; Sun, Minglei ; Zhang, Rong ; Zong, Guanghua ; Li, Shouzhong

Author_Institution

Sch. of Mech. Eng. & Autom., Beijing Univ. of Aeronaut. & Astronaut., Beijing, China

fYear

2009

fDate

22-24 June 2009

Firstpage

980

Lastpage

984

Abstract

The performance of traditional tracking differentiator (TD) will decline when it tracks great changing signals. This paper presents a novel self-adaptive second-order TD which can automatically adjust its tracking rate based on the feedback of differential signals. The result of simulation and experiment showed that this algorithm could effectively restrain oscillations when input signals changed in a low rate, and guarantee a small phase shift when the input signals varied rapidly.

Keywords

adaptive control; nonlinear control systems; position control; autodisturbances rejection controller; feedback; nonlinear tracking differentiator; restrain oscillations; self-adaptive second-order tracking differentiator; Automation; Control theory; Feedback; Mechanical engineering; Pollution; Process design; Signal design; Signal processing; Signal processing algorithms; Sun; Uncertain model; nonlinear tracking differentiator; self-adaptive control; switching function;

fLanguage

English

Publisher

ieee

Conference_Titel

Information and Automation, 2009. ICIA '09. International Conference on

Conference_Location

Zhuhai, Macau

Print_ISBN

978-1-4244-3607-1

Electronic_ISBN

978-1-4244-3608-8

Type

conf

DOI

10.1109/ICINFA.2009.5205060

Filename

5205060