Title :
A sensorless induction motor drive for low speed applications using a novel stator resistance estimation method
Author :
Guidi, Giuseppe ; Umida, Hidetoshi
Author_Institution :
Fuji Electr. Corp. Res. & Dev. Ltd., Japan
Abstract :
A sensorless induction motor drive with stator resistance online estimation is presented. The drive is particularly suitable for low speed operations. Resistance estimation is based on a two-time-scale approach, and the error between measured and observed current is used for parameter tuning. The simple full order observer used allows to keep direct field orientation in a wide range of operation. The system can drive active load and generate stall torque. The proposed drive has been simulated and then experimentally implemented, giving promising results
Keywords :
control system analysis; control system synthesis; induction motor drives; machine testing; machine theory; machine vector control; observers; parameter estimation; stators; velocity control; control design; control performance; control simulation; direct field orientation; full order observer; low speed applications; operating range; parameter tuning; sensorless induction motor drive; speed estimation; stator resistance estimation method; stator resistance online estimation; Electric resistance; Electrical resistance measurement; Induction machines; Induction motor drives; Machine vector control; Mechanical sensors; Rotors; Sensor systems and applications; Stators; Torque;
Conference_Titel :
Industry Applications Conference, 1999. Thirty-Fourth IAS Annual Meeting. Conference Record of the 1999 IEEE
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-5589-X
DOI :
10.1109/IAS.1999.799952
