Improving Disturbance-Rejection Performance Based on an Equivalent-Input-Disturbance Approach

Author

She, Jin-hua ; Fang, Mingxing ; Ohyama, Yasuhiro ; Hashimoto, Hiroshi ; Wu, Min

Author_Institution

Tokyo Univ. of Technol., Tokyo

Volume

55

Issue

1

fYear

2008

Firstpage

380

Lastpage

389

Abstract

This paper presents a new method of improving the disturbance-rejection performance of a servo system based on the estimation of an equivalent input disturbance (EID). First, the concept of EID is defined. Next, the configuration of an improved servo system employing the new disturbance-estimation method is described. Then, a method of designing a control law employing a disturbance estimate is explained. Finally, the speed control of a rotational control system is used to demonstrate the validity of the method, and some design guidelines are presented.

Keywords

servomechanisms; test equipment; EID approach; disturbance-rejection performance; equivalent-input-disturbance estimation; rotational control system; servo system; speed control; Control systems; Design methodology; Educational technology; Guidelines; Information science; Physics; Poles and zeros; Servomechanisms; State estimation; Velocity control; Disturbance estimation; disturbance estimation; disturbance rejection; equivalent input disturbance; equivalent input disturbance (EID); perfect regulation; servo system; stable inversion;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/TIE.2007.905976

Filename

4391082