Title :
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
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;
Conference_Titel :
Power Electronics Specialists Conference, 1991. PESC '91 Record., 22nd Annual IEEE
Conference_Location :
Cambridge, MA
Print_ISBN :
0-7803-0090-4
DOI :
10.1109/PESC.1991.162735
