Application of nonlinear observers for elevator vibration control

Author

Kang, Jun-Koo ; Sul, Seung-Ki

Author_Institution

Sch. of Electr. Eng., Seoul Nat. Univ., South Korea

Volume

2

fYear

1997

fDate

5-9 Oct 1997

Firstpage

873

Abstract

In this paper, an application of an extended nonlinear observer is introduced in order to implement a vibration suppression controller for an elevator. A proposed observer enables the observation of system states and the identification of system parameter simultaneously. The estimation of the cage acceleration and the identification of rope parameter are obtained by an extended nonlinear observer and using this acceleration signal a vertical vibration suppression controller is designed for a good ride quality. The two nonlinear observers are presented and compared by computer simulation based upon the linearized elevator model. Simulation proves the feasibility of a speed controller with a vertical vibration suppression controller

Keywords

control system synthesis; controllers; lifts; observers; parameter estimation; velocity control; vibration control; cage acceleration estimation; computer simulation; elevator vibration control; extended nonlinear observers; linearized elevator model; rope parameter identification; speed controller; system parameter identification; system states observation; vertical vibration suppression controller; Acceleration; Elevators; Filters; Mechanical factors; Observers; Resonant frequency; Springs; State estimation; State feedback; Vibration control;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 1997. Thirty-Second IAS Annual Meeting, IAS '97., Conference Record of the 1997 IEEE

Conference_Location

New Orleans, LA

ISSN

0197-2618

Print_ISBN

0-7803-4067-1

Type

conf

DOI

10.1109/IAS.1997.628964

Filename

628964