Title :
Sensorless position estimation using asymmetries in A.C. machines
Author :
STAINES, Cyril SPITERI ; Cilia, Joseph
Author_Institution :
Dept. of Electr. Power & Control Eng., Malta Univ., Msida, Malta
fDate :
6/23/1905 12:00:00 AM
Abstract :
This paper describes various methods aimed at estimating the rotor position for an AC 3-phase induction motor without a shaft sensor using specially designed asymmetric rotors. A High Frequency (HF) signal needs to be injected so as to detect the rotor position. As is common knowledge, saturation causes estimation problems when using HF injection, this effect and ways to overcome this problem are discussed
Keywords :
induction motors; machine control; parameter estimation; position control; rotors; AC machine; asymmetric rotor; high frequency signal injection; saturation; sensorless position estimation; three-phase induction motor; Control engineering; Frequency; Hafnium; Induction motors; Power engineering and energy; Pulse width modulation; Rotors; Sensorless control; Shafts; Yield estimation;
Conference_Titel :
Electronics, Circuits and Systems, 2001. ICECS 2001. The 8th IEEE International Conference on
Print_ISBN :
0-7803-7057-0
DOI :
10.1109/ICECS.2001.957700
