DocumentCode :
3320821
Title :
A new approach to induction machine flux and speed observer with on-line rotor time constant estimation
Author :
Derdiyok, Adnan ; Güven, Mustafa K. ; Rehman, Habib-ur ; Xu, Longya
Author_Institution :
Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA
fYear :
2001
fDate :
2001
Firstpage :
102
Lastpage :
107
Abstract :
This paper presents flux and speed estimation with on-line rotor time constant estimation for an indirect field oriented induction motor drive system using sliding mode technique. A closed loop flux observer based on the current estimation error is constructed. A unique feature of the proposed observer is that, the proposed current observer includes a sliding mode function, which is derivative of the flux. Therefore, when the estimated current converges to the measured one, the sliding mode function is integrated to calculate the flux. The speed and rotor time constant can then be calculated from the sliding mode function and the estimated flux. Simulation and experimental results for the flux and speed estimation of the machine are presented to validate the proposed algorithm
Keywords :
angular velocity control; closed loop systems; induction motor drives; machine vector control; magnetic flux; magnetic variables control; observers; parameter estimation; rotors; closed loop flux observer; current estimation error; indirect field oriented induction motor drive; induction machine flux; on-line rotor time constant estimation; rotor time constant; sliding mode function; sliding mode technique; speed observer; Frequency estimation; Inductance; Induction machines; Induction motor drives; Observers; Rotors; Sliding mode control; State estimation; Stators; Voltage;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electric Machines and Drives Conference, 2001. IEMDC 2001. IEEE International
Conference_Location :
Cambridge, MA
Print_ISBN :
0-7803-7091-0
Type :
conf
DOI :
10.1109/IEMDC.2001.939281
Filename :
939281
Link To Document :
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