Title :
Sensorless control of synchronous reluctance motors based on an extended EMF model and initial position estimation
Author :
Ichikawa, Shinji ; Tomita, Mutuwo ; Doki, Shinji ; Okuma, Shigeru
Author_Institution :
Dept. of Electr. Eng., Nagoya Univ., Japan
Abstract :
In this paper, we realize a sensorless control of synchronous reluctance motors based on a proposed extended EMF model. This proposed model can be used for all synchronous motors, so the estimation method applied for permanent magnet synchronous motors can be applied for synchronous reluctance motors without modification. At standstill state, since an amplitude of the extended EMF becomes zero, it is difficult to realize position estimation based on the extended EMF. In order to solve this problem, a system identification method for sensorless control is combined with it. Sensorless control of synchronous reluctance motors can be realized from standstill state to high-speed ranges by a combination of two methods.
Keywords :
electric potential; machine control; parameter estimation; permanent magnet motors; reluctance motors; electromotive force; extended EMF model; initial position estimation; motor control; sensorless control; standstill state; synchronous reluctance motors; system identification method; Angular velocity; Electronic mail; Inductance; Reluctance motors; Rotors; Sensorless control; State estimation; Synchronous motors; System identification; Voltage;
Conference_Titel :
Industrial Electronics Society, 2003. IECON '03. The 29th Annual Conference of the IEEE
Print_ISBN :
0-7803-7906-3
DOI :
10.1109/IECON.2003.1280576
