Time domain characteristics of sliding observer for flux estimation of induction motor and its implementation

Author

Sangwongwanich, S. ; Yonemoto, T. ; Okuma, S.

Author_Institution

Dept. of Electr. Eng., Nagoya Univ., Japan

fYear

1991

fDate

24-27 Jun 1991

Firstpage

591

Lastpage

595

Abstract

A method for estimating the rotor flux of the induction motor using a sliding observer is proposed. Several advantages of the sliding observer over the reduced-order observer are clarified. Analysis in the time domain is carried out, from which a quantitative design method based on disturbance rejection capability is developed. The dynamic and steady-state characteristics of the estimation error are shown to be determined by H_∞-norm of the transfer function of the disturbance. The implementation of the sliding observer is described

Keywords

State estimation; induction motors; machine control; rotors; state estimation; time-domain analysis; transfer functions; variable structure systems; H_∞-norm; disturbance rejection capability; estimation error; field oriented control dynamic characteristics; flux estimation; induction motor; quantitative design method; rotor flux; sliding observer; steady-state characteristics; time domain characteristics; transfer function; Convergence; Design methodology; Estimation error; Frequency domain analysis; Induction motors; Noise robustness; Observers; Rotors; Stators; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1991. PESC '91 Record., 22nd Annual IEEE

Conference_Location

Cambridge, MA

Print_ISBN

0-7803-0090-4

Type

conf

DOI

10.1109/PESC.1991.162735

Filename

162735